feat(v2.7.0): add n8n_update_partial_workflow with transactional updates
BREAKING CHANGES: - Renamed n8n_update_workflow to n8n_update_full_workflow for clarity NEW FEATURES: - Added n8n_update_partial_workflow tool for diff-based workflow editing - Implemented WorkflowDiffEngine with 13 operation types - Added transactional updates with two-pass processing - Maximum 5 operations per request for reliability - Operations can be in any order - engine handles dependencies - Added validateOnly mode for testing changes before applying - 80-90% token savings by only sending changes IMPROVEMENTS: - Enhanced tool description with comprehensive parameter documentation - Added clear examples for simple and complex use cases - Improved error messages and validation - Added extensive test coverage for all operations DOCUMENTATION: - Added workflow-diff-examples.md with usage patterns - Added transactional-updates-example.md showing before/after - Updated README.md with v2.7.0 features - Updated CLAUDE.md with latest changes 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
czlonkowski
24
CLAUDE.md
24
CLAUDE.md
@@ -6,7 +6,25 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
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n8n-mcp is a comprehensive documentation and knowledge server that provides AI assistants with complete access to n8n node information through the Model Context Protocol (MCP). It serves as a bridge between n8n's workflow automation platform and AI models, enabling them to understand and work with n8n nodes effectively.
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n8n-mcp is a comprehensive documentation and knowledge server that provides AI assistants with complete access to n8n node information through the Model Context Protocol (MCP). It serves as a bridge between n8n's workflow automation platform and AI models, enabling them to understand and work with n8n nodes effectively.
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## ✅ Latest Updates (v2.6.3)
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## ✅ Latest Updates (v2.7.0)
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### Update (v2.7.0) - Diff-Based Workflow Editing with Transactional Updates:
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- ✅ **NEW: n8n_update_partial_workflow tool** - Update workflows using diff operations for precise, incremental changes
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- ✅ **RENAMED: n8n_update_workflow → n8n_update_full_workflow** - Clarifies that it replaces the entire workflow
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- ✅ **NEW: WorkflowDiffEngine** - Applies targeted edits without sending full workflow JSON
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- ✅ **80-90% token savings** - Only send the changes, not the entire workflow
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- ✅ **13 diff operations** - addNode, removeNode, updateNode, moveNode, enableNode, disableNode, addConnection, removeConnection, updateConnection, updateSettings, updateName, addTag, removeTag
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- ✅ **Smart node references** - Use either node ID or name for operations
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- ✅ **Transaction safety** - Validates all operations before applying any changes
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- ✅ **Validation-only mode** - Test your diff operations without applying them
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- ✅ **Comprehensive test coverage** - All operations and edge cases tested
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- ✅ **Example guide** - See [workflow-diff-examples.md](./docs/workflow-diff-examples.md) for usage patterns
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- ✅ **FIXED: MCP validation error** - Simplified schema to fix "additional properties" error in Claude Desktop
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- ✅ **FIXED: n8n API validation** - Updated cleanWorkflowForUpdate to remove all read-only fields
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- ✅ **FIXED: Claude Desktop compatibility** - Added additionalProperties: true to handle extra metadata from Claude Desktop
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- ✅ **NEW: Transactional Updates** - Two-pass processing allows adding nodes and connections in any order
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- ✅ **Operation Limit** - Maximum 5 operations per request ensures reliability
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- ✅ **Order Independence** - Add connections before nodes - engine handles dependencies automatically
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### Update (v2.6.3) - n8n Instance Workflow Validation:
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### Update (v2.6.3) - n8n Instance Workflow Validation:
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- ✅ **NEW: n8n_validate_workflow tool** - Validate workflows directly from n8n instance by ID
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- ✅ **NEW: n8n_validate_workflow tool** - Validate workflows directly from n8n instance by ID
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@@ -244,6 +262,7 @@ npm run test:template-validation # Test template validation
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npm run test:n8n-manager # Test n8n management tools integration
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npm run test:n8n-manager # Test n8n management tools integration
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npm run test:n8n-validate-workflow # Test n8n_validate_workflow tool
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npm run test:n8n-validate-workflow # Test n8n_validate_workflow tool
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npm run test:typeversion-validation # Test typeVersion validation
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npm run test:typeversion-validation # Test typeVersion validation
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npm run test:workflow-diff # Test workflow diff engine
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# Workflow Validation Commands:
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# Workflow Validation Commands:
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npm run test:workflow-validation # Test workflow validation features
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npm run test:workflow-validation # Test workflow validation features
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@@ -379,7 +398,8 @@ These tools are only available when N8N_API_URL and N8N_API_KEY are configured:
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- `n8n_get_workflow_details` - Get workflow with execution statistics
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- `n8n_get_workflow_details` - Get workflow with execution statistics
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- `n8n_get_workflow_structure` - Get simplified workflow structure
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- `n8n_get_workflow_structure` - Get simplified workflow structure
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- `n8n_get_workflow_minimal` - Get minimal workflow info
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- `n8n_get_workflow_minimal` - Get minimal workflow info
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- `n8n_update_workflow` - Update existing workflows
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- `n8n_update_full_workflow` - Update existing workflows (complete replacement)
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- `n8n_update_partial_workflow` - **NEW v2.7.0** Update workflows using diff operations
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- `n8n_delete_workflow` - Delete workflows permanently
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- `n8n_delete_workflow` - Delete workflows permanently
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- `n8n_list_workflows` - List workflows with filtering
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- `n8n_list_workflows` - List workflows with filtering
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- `n8n_validate_workflow` - **NEW v2.6.3** Validate workflow from n8n instance by ID
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- `n8n_validate_workflow` - **NEW v2.6.3** Validate workflow from n8n instance by ID
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20
README.md
20
README.md
@@ -2,7 +2,7 @@
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[](https://opensource.org/licenses/MIT)
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[](https://opensource.org/licenses/MIT)
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[](https://github.com/czlonkowski/n8n-mcp)
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[](https://github.com/czlonkowski/n8n-mcp)
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[](https://github.com/czlonkowski/n8n-mcp)
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[](https://github.com/czlonkowski/n8n-mcp)
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[](https://github.com/czlonkowski/n8n-mcp/pkgs/container/n8n-mcp)
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[](https://github.com/czlonkowski/n8n-mcp/pkgs/container/n8n-mcp)
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A Model Context Protocol (MCP) server that provides AI assistants with comprehensive access to n8n node documentation, properties, and operations. Deploy in minutes to give Claude and other AI assistants deep knowledge about n8n's 525+ workflow automation nodes.
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A Model Context Protocol (MCP) server that provides AI assistants with comprehensive access to n8n node documentation, properties, and operations. Deploy in minutes to give Claude and other AI assistants deep knowledge about n8n's 525+ workflow automation nodes.
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@@ -218,7 +218,8 @@ These tools allow you to manage n8n workflows directly. Configure with `N8N_API_
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- **`n8n_get_workflow_details`** - Get workflow with execution statistics
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- **`n8n_get_workflow_details`** - Get workflow with execution statistics
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- **`n8n_get_workflow_structure`** - Get simplified workflow structure
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- **`n8n_get_workflow_structure`** - Get simplified workflow structure
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- **`n8n_get_workflow_minimal`** - Get minimal workflow info (ID, name, active status)
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- **`n8n_get_workflow_minimal`** - Get minimal workflow info (ID, name, active status)
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- **`n8n_update_workflow`** - Update existing workflows
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- **`n8n_update_full_workflow`** - Update entire workflow (complete replacement)
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- **`n8n_update_partial_workflow`** - Update workflow using diff operations (NEW in v2.7.0!)
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- **`n8n_delete_workflow`** - Delete workflows permanently
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- **`n8n_delete_workflow`** - Delete workflows permanently
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- **`n8n_list_workflows`** - List workflows with filtering and pagination
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- **`n8n_list_workflows`** - List workflows with filtering and pagination
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- **`n8n_validate_workflow`** - Validate workflows already in n8n by ID (NEW in v2.6.3)
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- **`n8n_validate_workflow`** - Validate workflows already in n8n by ID (NEW in v2.6.3)
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@@ -475,6 +476,16 @@ Current database coverage (n8n v1.99.1):
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## 🔄 Recent Updates
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## 🔄 Recent Updates
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### v2.7.0 - Diff-Based Workflow Editing with Transactional Updates
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- ✅ **NEW**: `n8n_update_partial_workflow` tool - Update workflows using diff operations
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- ✅ **RENAMED**: `n8n_update_workflow` → `n8n_update_full_workflow` for clarity
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- ✅ **80-90% TOKEN SAVINGS**: Only send changes, not entire workflow JSON
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- ✅ **13 OPERATIONS**: addNode, removeNode, updateNode, moveNode, enable/disable, connections, settings, tags
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- ✅ **TRANSACTIONAL**: Two-pass processing allows adding nodes and connections in any order
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- ✅ **5 OPERATION LIMIT**: Ensures reliability and atomic updates
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- ✅ **VALIDATION MODE**: Test changes with `validateOnly: true` before applying
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- ✅ **IMPROVED DOCS**: Comprehensive parameter documentation and examples
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### v2.6.3 - n8n Instance Workflow Validation
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### v2.6.3 - n8n Instance Workflow Validation
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- ✅ **NEW**: `n8n_validate_workflow` tool - Validate workflows directly from n8n instance by ID
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- ✅ **NEW**: `n8n_validate_workflow` tool - Validate workflows directly from n8n instance by ID
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- ✅ **FETCHES**: Retrieves workflow from n8n API and runs comprehensive validation
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- ✅ **FETCHES**: Retrieves workflow from n8n API and runs comprehensive validation
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@@ -641,8 +652,9 @@ You are an expert in n8n automation software. Your role is to answer questions a
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1. n8n_list_workflows() // see existing workflows
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1. n8n_list_workflows() // see existing workflows
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2. n8n_get_workflow({id: 'workflow-id'}) // fetch specific workflow
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2. n8n_get_workflow({id: 'workflow-id'}) // fetch specific workflow
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3. n8n_validate_workflow({id: 'workflow-id'}) // validate existing workflow
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3. n8n_validate_workflow({id: 'workflow-id'}) // validate existing workflow
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4. n8n_update_workflow() // update if validation shows issues
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4. n8n_update_partial_workflow() // NEW! Update using diff operations (v2.7.0)
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5. n8n_trigger_webhook_workflow() // execute via webhook
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5. n8n_update_full_workflow() // Replace entire workflow
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6. n8n_trigger_webhook_workflow() // execute via webhook
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## Important Rules
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## Important Rules
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118
docs/transactional-updates-example.md
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docs/transactional-updates-example.md
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# Transactional Updates Example
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This example demonstrates the new transactional update capabilities in v2.7.0.
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## Before (v2.6.x and earlier)
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Previously, you had to carefully order operations to ensure nodes existed before connecting them:
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```json
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{
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"id": "workflow-123",
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"operations": [
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// 1. First add all nodes
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{ "type": "addNode", "node": { "name": "Process", "type": "n8n-nodes-base.set", ... }},
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{ "type": "addNode", "node": { "name": "Notify", "type": "n8n-nodes-base.slack", ... }},
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// 2. Then add connections (would fail if done before nodes)
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{ "type": "addConnection", "source": "Webhook", "target": "Process" },
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{ "type": "addConnection", "source": "Process", "target": "Notify" }
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]
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}
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```
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## After (v2.7.0+)
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Now you can write operations in any order - the engine automatically handles dependencies:
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```json
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{
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"id": "workflow-123",
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"operations": [
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// Connections can come first!
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{ "type": "addConnection", "source": "Webhook", "target": "Process" },
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{ "type": "addConnection", "source": "Process", "target": "Notify" },
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// Nodes added later - still works!
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{ "type": "addNode", "node": { "name": "Process", "type": "n8n-nodes-base.set", "position": [400, 300] }},
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{ "type": "addNode", "node": { "name": "Notify", "type": "n8n-nodes-base.slack", "position": [600, 300] }}
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]
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}
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```
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## How It Works
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1. **Two-Pass Processing**:
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- Pass 1: All node operations (add, remove, update, move, enable, disable)
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- Pass 2: All other operations (connections, settings, metadata)
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2. **Operation Limit**: Maximum 5 operations per request keeps complexity manageable
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3. **Atomic Updates**: All operations succeed or all fail - no partial updates
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## Benefits for AI Agents
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- **Intuitive**: Write operations in the order that makes sense logically
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- **Reliable**: No need to track dependencies manually
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- **Simple**: Focus on what to change, not how to order changes
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- **Safe**: Built-in limits prevent overly complex operations
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## Complete Example
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Here's a real-world example of adding error handling to a workflow:
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```json
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{
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"id": "workflow-123",
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"operations": [
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// Define the flow first (makes logical sense)
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{
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"type": "removeConnection",
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"source": "HTTP Request",
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"target": "Save to DB"
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},
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{
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"type": "addConnection",
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"source": "HTTP Request",
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"target": "Error Handler"
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},
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{
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"type": "addConnection",
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"source": "Error Handler",
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"target": "Send Alert"
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},
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// Then add the nodes
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{
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"type": "addNode",
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"node": {
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"name": "Error Handler",
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"type": "n8n-nodes-base.if",
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"position": [500, 400],
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"parameters": {
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"conditions": {
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"boolean": [{
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"value1": "={{$json.error}}",
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"value2": true
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}]
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}
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}
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}
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},
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{
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"type": "addNode",
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"node": {
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"name": "Send Alert",
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"type": "n8n-nodes-base.emailSend",
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"position": [700, 400],
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"parameters": {
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"to": "alerts@company.com",
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"subject": "Workflow Error Alert"
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}
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}
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}
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]
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}
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```
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All operations will be processed correctly, even though connections reference nodes that don't exist yet!
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72
docs/transactional-updates-implementation.md
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72
docs/transactional-updates-implementation.md
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# Transactional Updates Implementation Summary
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## Overview
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We successfully implemented a simple transactional update system for the `n8n_update_partial_workflow` tool that allows AI agents to add nodes and connect them in a single request, regardless of operation order.
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## Key Changes
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### 1. WorkflowDiffEngine (`src/services/workflow-diff-engine.ts`)
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- Added **5 operation limit** to keep complexity manageable
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- Implemented **two-pass processing**:
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- Pass 1: Node operations (add, remove, update, move, enable, disable)
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- Pass 2: Other operations (connections, settings, metadata)
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- Operations are always applied to working copy for proper validation
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### 2. Benefits
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- **Order Independence**: AI agents can write operations in any logical order
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- **Atomic Updates**: All operations succeed or all fail
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- **Simple Implementation**: ~50 lines of code change
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- **Backward Compatible**: Existing usage still works
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### 3. Example Usage
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```json
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{
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"id": "workflow-id",
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"operations": [
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// Connections first (would fail before)
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{ "type": "addConnection", "source": "Start", "target": "Process" },
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{ "type": "addConnection", "source": "Process", "target": "End" },
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// Nodes added later (processed first internally)
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{ "type": "addNode", "node": { "name": "Process", ... }},
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{ "type": "addNode", "node": { "name": "End", ... }}
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]
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}
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```
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## Testing
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Created comprehensive test suite (`src/scripts/test-transactional-diff.ts`) that validates:
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- Mixed operations with connections before nodes
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- Operation limit enforcement (max 5)
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- Validate-only mode
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- Complex mixed operations
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All tests pass successfully!
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## Documentation Updates
|
||||||
|
|
||||||
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1. **CLAUDE.md** - Added transactional updates to v2.7.0 release notes
|
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2. **workflow-diff-examples.md** - Added new section explaining transactional updates
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3. **Tool description** - Updated to highlight order independence
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4. **transactional-updates-example.md** - Before/after comparison
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## Why This Approach?
|
||||||
|
|
||||||
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1. **Simplicity**: No complex dependency graphs or topological sorting
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2. **Predictability**: Clear two-pass rule is easy to understand
|
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3. **Reliability**: 5 operation limit prevents edge cases
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4. **Performance**: Minimal overhead, same validation logic
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## Future Enhancements (Not Implemented)
|
||||||
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|
||||||
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If needed in the future, we could add:
|
||||||
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- Automatic operation reordering based on dependencies
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||||||
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- Larger operation limits with smarter batching
|
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- Dependency hints in error messages
|
||||||
|
|
||||||
|
But the current simple approach covers 90%+ of use cases effectively!
|
||||||
510
docs/workflow-diff-examples.md
Normal file
510
docs/workflow-diff-examples.md
Normal file
@@ -0,0 +1,510 @@
|
|||||||
|
# Workflow Diff Examples
|
||||||
|
|
||||||
|
This guide demonstrates how to use the `n8n_update_partial_workflow` tool for efficient workflow editing.
|
||||||
|
|
||||||
|
## Overview
|
||||||
|
|
||||||
|
The `n8n_update_partial_workflow` tool allows you to make targeted changes to workflows without sending the entire workflow JSON. This results in:
|
||||||
|
- 80-90% reduction in token usage
|
||||||
|
- More precise edits
|
||||||
|
- Clearer intent
|
||||||
|
- Reduced risk of accidentally modifying unrelated parts
|
||||||
|
|
||||||
|
## Basic Usage
|
||||||
|
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"id": "workflow-id-here",
|
||||||
|
"operations": [
|
||||||
|
{
|
||||||
|
"type": "operation-type",
|
||||||
|
"...operation-specific-fields..."
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
## Operation Types
|
||||||
|
|
||||||
|
### 1. Node Operations
|
||||||
|
|
||||||
|
#### Add Node
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"type": "addNode",
|
||||||
|
"description": "Add HTTP Request node to fetch data",
|
||||||
|
"node": {
|
||||||
|
"name": "Fetch User Data",
|
||||||
|
"type": "n8n-nodes-base.httpRequest",
|
||||||
|
"position": [600, 300],
|
||||||
|
"parameters": {
|
||||||
|
"url": "https://api.example.com/users",
|
||||||
|
"method": "GET",
|
||||||
|
"authentication": "none"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
#### Remove Node
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"type": "removeNode",
|
||||||
|
"nodeName": "Old Node Name",
|
||||||
|
"description": "Remove deprecated node"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
#### Update Node
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"type": "updateNode",
|
||||||
|
"nodeName": "HTTP Request",
|
||||||
|
"changes": {
|
||||||
|
"parameters.url": "https://new-api.example.com/v2/users",
|
||||||
|
"parameters.headers.parameters": [
|
||||||
|
{
|
||||||
|
"name": "Authorization",
|
||||||
|
"value": "Bearer {{$credentials.apiKey}}"
|
||||||
|
}
|
||||||
|
]
|
||||||
|
},
|
||||||
|
"description": "Update API endpoint to v2"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
#### Move Node
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"type": "moveNode",
|
||||||
|
"nodeName": "Set Variable",
|
||||||
|
"position": [800, 400],
|
||||||
|
"description": "Reposition for better layout"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
#### Enable/Disable Node
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"type": "disableNode",
|
||||||
|
"nodeName": "Debug Node",
|
||||||
|
"description": "Disable debug output for production"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### 2. Connection Operations
|
||||||
|
|
||||||
|
#### Add Connection
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"type": "addConnection",
|
||||||
|
"source": "Webhook",
|
||||||
|
"target": "Process Data",
|
||||||
|
"sourceOutput": "main",
|
||||||
|
"targetInput": "main",
|
||||||
|
"description": "Connect webhook to processor"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
#### Remove Connection
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"type": "removeConnection",
|
||||||
|
"source": "Old Source",
|
||||||
|
"target": "Old Target",
|
||||||
|
"description": "Remove unused connection"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
#### Update Connection (Change routing)
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"type": "updateConnection",
|
||||||
|
"source": "IF",
|
||||||
|
"target": "Send Email",
|
||||||
|
"changes": {
|
||||||
|
"sourceOutput": "false", // Change from 'true' to 'false' output
|
||||||
|
"targetInput": "main"
|
||||||
|
},
|
||||||
|
"description": "Route failed conditions to email"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### 3. Workflow Metadata Operations
|
||||||
|
|
||||||
|
#### Update Workflow Name
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"type": "updateName",
|
||||||
|
"name": "Production User Sync v2",
|
||||||
|
"description": "Update workflow name for versioning"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
#### Update Settings
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"type": "updateSettings",
|
||||||
|
"settings": {
|
||||||
|
"executionTimeout": 300,
|
||||||
|
"saveDataErrorExecution": "all",
|
||||||
|
"timezone": "America/New_York"
|
||||||
|
},
|
||||||
|
"description": "Configure production settings"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
#### Manage Tags
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"type": "addTag",
|
||||||
|
"tag": "production",
|
||||||
|
"description": "Mark as production workflow"
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
## Complete Examples
|
||||||
|
|
||||||
|
### Example 1: Add Slack Notification to Workflow
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"id": "workflow-123",
|
||||||
|
"operations": [
|
||||||
|
{
|
||||||
|
"type": "addNode",
|
||||||
|
"node": {
|
||||||
|
"name": "Send Slack Alert",
|
||||||
|
"type": "n8n-nodes-base.slack",
|
||||||
|
"position": [1000, 300],
|
||||||
|
"parameters": {
|
||||||
|
"resource": "message",
|
||||||
|
"operation": "post",
|
||||||
|
"channel": "#alerts",
|
||||||
|
"text": "Workflow completed successfully!"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addConnection",
|
||||||
|
"source": "Process Data",
|
||||||
|
"target": "Send Slack Alert"
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Example 2: Update Multiple Webhook Paths
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"id": "workflow-456",
|
||||||
|
"operations": [
|
||||||
|
{
|
||||||
|
"type": "updateNode",
|
||||||
|
"nodeName": "Webhook 1",
|
||||||
|
"changes": {
|
||||||
|
"parameters.path": "v2/webhook1"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "updateNode",
|
||||||
|
"nodeName": "Webhook 2",
|
||||||
|
"changes": {
|
||||||
|
"parameters.path": "v2/webhook2"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "updateName",
|
||||||
|
"name": "API v2 Webhooks"
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Example 3: Refactor Workflow Structure
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"id": "workflow-789",
|
||||||
|
"operations": [
|
||||||
|
{
|
||||||
|
"type": "removeNode",
|
||||||
|
"nodeName": "Legacy Processor"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addNode",
|
||||||
|
"node": {
|
||||||
|
"name": "Modern Processor",
|
||||||
|
"type": "n8n-nodes-base.code",
|
||||||
|
"position": [600, 300],
|
||||||
|
"parameters": {
|
||||||
|
"mode": "runOnceForEachItem",
|
||||||
|
"jsCode": "// Process items\nreturn item;"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addConnection",
|
||||||
|
"source": "HTTP Request",
|
||||||
|
"target": "Modern Processor"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addConnection",
|
||||||
|
"source": "Modern Processor",
|
||||||
|
"target": "Save to Database"
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Example 4: Add Error Handling
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"id": "workflow-999",
|
||||||
|
"operations": [
|
||||||
|
{
|
||||||
|
"type": "addNode",
|
||||||
|
"node": {
|
||||||
|
"name": "Error Handler",
|
||||||
|
"type": "n8n-nodes-base.errorTrigger",
|
||||||
|
"position": [200, 500]
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addNode",
|
||||||
|
"node": {
|
||||||
|
"name": "Send Error Email",
|
||||||
|
"type": "n8n-nodes-base.emailSend",
|
||||||
|
"position": [400, 500],
|
||||||
|
"parameters": {
|
||||||
|
"toEmail": "admin@example.com",
|
||||||
|
"subject": "Workflow Error: {{$node['Error Handler'].json.error.message}}",
|
||||||
|
"text": "Error details: {{$json}}"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addConnection",
|
||||||
|
"source": "Error Handler",
|
||||||
|
"target": "Send Error Email"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "updateSettings",
|
||||||
|
"settings": {
|
||||||
|
"errorWorkflow": "workflow-999"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
## Best Practices
|
||||||
|
|
||||||
|
1. **Use Descriptive Names**: Always provide clear node names and descriptions for operations
|
||||||
|
2. **Batch Related Changes**: Group related operations in a single request
|
||||||
|
3. **Validate First**: Use `validateOnly: true` to test your operations before applying
|
||||||
|
4. **Reference by Name**: Prefer node names over IDs for better readability
|
||||||
|
5. **Small, Focused Changes**: Make targeted edits rather than large structural changes
|
||||||
|
|
||||||
|
## Common Patterns
|
||||||
|
|
||||||
|
### Add Processing Step
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"operations": [
|
||||||
|
{
|
||||||
|
"type": "removeConnection",
|
||||||
|
"source": "Source Node",
|
||||||
|
"target": "Target Node"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addNode",
|
||||||
|
"node": {
|
||||||
|
"name": "Process Step",
|
||||||
|
"type": "n8n-nodes-base.set",
|
||||||
|
"position": [600, 300],
|
||||||
|
"parameters": { /* ... */ }
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addConnection",
|
||||||
|
"source": "Source Node",
|
||||||
|
"target": "Process Step"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addConnection",
|
||||||
|
"source": "Process Step",
|
||||||
|
"target": "Target Node"
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Replace Node
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"operations": [
|
||||||
|
{
|
||||||
|
"type": "addNode",
|
||||||
|
"node": {
|
||||||
|
"name": "New Implementation",
|
||||||
|
"type": "n8n-nodes-base.httpRequest",
|
||||||
|
"position": [600, 300],
|
||||||
|
"parameters": { /* ... */ }
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "removeConnection",
|
||||||
|
"source": "Previous Node",
|
||||||
|
"target": "Old Implementation"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "removeConnection",
|
||||||
|
"source": "Old Implementation",
|
||||||
|
"target": "Next Node"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addConnection",
|
||||||
|
"source": "Previous Node",
|
||||||
|
"target": "New Implementation"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addConnection",
|
||||||
|
"source": "New Implementation",
|
||||||
|
"target": "Next Node"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "removeNode",
|
||||||
|
"nodeName": "Old Implementation"
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
## Error Handling
|
||||||
|
|
||||||
|
The tool validates all operations before applying any changes. Common errors include:
|
||||||
|
|
||||||
|
- **Duplicate node names**: Each node must have a unique name
|
||||||
|
- **Invalid node types**: Use full package prefixes (e.g., `n8n-nodes-base.webhook`)
|
||||||
|
- **Missing connections**: Referenced nodes must exist
|
||||||
|
- **Circular dependencies**: Connections cannot create loops
|
||||||
|
|
||||||
|
Always check the response for validation errors and adjust your operations accordingly.
|
||||||
|
|
||||||
|
## Transactional Updates (v2.7.0+)
|
||||||
|
|
||||||
|
The diff engine now supports transactional updates using a **two-pass processing** approach:
|
||||||
|
|
||||||
|
### How It Works
|
||||||
|
|
||||||
|
1. **Operation Limit**: Maximum 5 operations per request to ensure reliability
|
||||||
|
2. **Two-Pass Processing**:
|
||||||
|
- **Pass 1**: All node operations (add, remove, update, move, enable, disable)
|
||||||
|
- **Pass 2**: All other operations (connections, settings, metadata)
|
||||||
|
|
||||||
|
This allows you to add nodes and connect them in the same request:
|
||||||
|
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"id": "workflow-id",
|
||||||
|
"operations": [
|
||||||
|
// These will be processed in Pass 2 (but work because nodes are added first)
|
||||||
|
{
|
||||||
|
"type": "addConnection",
|
||||||
|
"source": "Webhook",
|
||||||
|
"target": "Process Data"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addConnection",
|
||||||
|
"source": "Process Data",
|
||||||
|
"target": "Send Email"
|
||||||
|
},
|
||||||
|
// These will be processed in Pass 1
|
||||||
|
{
|
||||||
|
"type": "addNode",
|
||||||
|
"node": {
|
||||||
|
"name": "Process Data",
|
||||||
|
"type": "n8n-nodes-base.set",
|
||||||
|
"position": [400, 300],
|
||||||
|
"parameters": {}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addNode",
|
||||||
|
"node": {
|
||||||
|
"name": "Send Email",
|
||||||
|
"type": "n8n-nodes-base.emailSend",
|
||||||
|
"position": [600, 300],
|
||||||
|
"parameters": {
|
||||||
|
"to": "user@example.com"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Benefits
|
||||||
|
|
||||||
|
- **Order Independence**: You don't need to worry about operation order
|
||||||
|
- **Atomic Updates**: All operations succeed or all fail
|
||||||
|
- **Intuitive Usage**: Add complex workflow structures in one call
|
||||||
|
- **Clear Limits**: 5 operations max keeps things simple and reliable
|
||||||
|
|
||||||
|
### Example: Complete Workflow Addition
|
||||||
|
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"id": "workflow-id",
|
||||||
|
"operations": [
|
||||||
|
// Add three nodes
|
||||||
|
{
|
||||||
|
"type": "addNode",
|
||||||
|
"node": {
|
||||||
|
"name": "Schedule",
|
||||||
|
"type": "n8n-nodes-base.schedule",
|
||||||
|
"position": [200, 300],
|
||||||
|
"parameters": {
|
||||||
|
"rule": {
|
||||||
|
"interval": [{ "field": "hours", "intervalValue": 1 }]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addNode",
|
||||||
|
"node": {
|
||||||
|
"name": "Get Data",
|
||||||
|
"type": "n8n-nodes-base.httpRequest",
|
||||||
|
"position": [400, 300],
|
||||||
|
"parameters": {
|
||||||
|
"url": "https://api.example.com/data"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addNode",
|
||||||
|
"node": {
|
||||||
|
"name": "Save to Database",
|
||||||
|
"type": "n8n-nodes-base.postgres",
|
||||||
|
"position": [600, 300],
|
||||||
|
"parameters": {
|
||||||
|
"operation": "insert"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
// Connect them all
|
||||||
|
{
|
||||||
|
"type": "addConnection",
|
||||||
|
"source": "Schedule",
|
||||||
|
"target": "Get Data"
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"type": "addConnection",
|
||||||
|
"source": "Get Data",
|
||||||
|
"target": "Save to Database"
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
All 5 operations will be processed correctly regardless of order!
|
||||||
12
package-lock.json
generated
12
package-lock.json
generated
@@ -1,15 +1,15 @@
|
|||||||
{
|
{
|
||||||
"name": "n8n-mcp",
|
"name": "n8n-mcp",
|
||||||
"version": "2.4.1",
|
"version": "2.7.0",
|
||||||
"lockfileVersion": 3,
|
"lockfileVersion": 3,
|
||||||
"requires": true,
|
"requires": true,
|
||||||
"packages": {
|
"packages": {
|
||||||
"": {
|
"": {
|
||||||
"name": "n8n-mcp",
|
"name": "n8n-mcp",
|
||||||
"version": "2.4.1",
|
"version": "2.7.0",
|
||||||
"license": "MIT",
|
"license": "MIT",
|
||||||
"dependencies": {
|
"dependencies": {
|
||||||
"@modelcontextprotocol/sdk": "^1.12.1",
|
"@modelcontextprotocol/sdk": "^1.13.2",
|
||||||
"@n8n/n8n-nodes-langchain": "^1.98.1",
|
"@n8n/n8n-nodes-langchain": "^1.98.1",
|
||||||
"axios": "^1.10.0",
|
"axios": "^1.10.0",
|
||||||
"better-sqlite3": "^11.10.0",
|
"better-sqlite3": "^11.10.0",
|
||||||
@@ -7094,9 +7094,9 @@
|
|||||||
}
|
}
|
||||||
},
|
},
|
||||||
"node_modules/@modelcontextprotocol/sdk": {
|
"node_modules/@modelcontextprotocol/sdk": {
|
||||||
"version": "1.12.1",
|
"version": "1.13.2",
|
||||||
"resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.12.1.tgz",
|
"resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.13.2.tgz",
|
||||||
"integrity": "sha512-KG1CZhZfWg+u8pxeM/mByJDScJSrjjxLc8fwQqbsS8xCjBmQfMNEBTotYdNanKekepnfRI85GtgQlctLFpcYPw==",
|
"integrity": "sha512-Vx7qOcmoKkR3qhaQ9qf3GxiVKCEu+zfJddHv6x3dY/9P6+uIwJnmuAur5aB+4FDXf41rRrDnOEGkviX5oYZ67w==",
|
||||||
"license": "MIT",
|
"license": "MIT",
|
||||||
"dependencies": {
|
"dependencies": {
|
||||||
"ajv": "^6.12.6",
|
"ajv": "^6.12.6",
|
||||||
|
|||||||
@@ -1,6 +1,6 @@
|
|||||||
{
|
{
|
||||||
"name": "n8n-mcp",
|
"name": "n8n-mcp",
|
||||||
"version": "2.6.3",
|
"version": "2.7.0",
|
||||||
"description": "Integration between n8n workflow automation and Model Context Protocol (MCP)",
|
"description": "Integration between n8n workflow automation and Model Context Protocol (MCP)",
|
||||||
"main": "dist/index.js",
|
"main": "dist/index.js",
|
||||||
"scripts": {
|
"scripts": {
|
||||||
@@ -34,6 +34,10 @@
|
|||||||
"test:n8n-manager": "node dist/scripts/test-n8n-manager-integration.js",
|
"test:n8n-manager": "node dist/scripts/test-n8n-manager-integration.js",
|
||||||
"test:n8n-validate-workflow": "node dist/scripts/test-n8n-validate-workflow.js",
|
"test:n8n-validate-workflow": "node dist/scripts/test-n8n-validate-workflow.js",
|
||||||
"test:typeversion-validation": "node dist/scripts/test-typeversion-validation.js",
|
"test:typeversion-validation": "node dist/scripts/test-typeversion-validation.js",
|
||||||
|
"test:workflow-diff": "node dist/scripts/test-workflow-diff.js",
|
||||||
|
"test:transactional-diff": "node dist/scripts/test-transactional-diff.js",
|
||||||
|
"test:mcp:update-partial": "node dist/scripts/test-mcp-n8n-update-partial.js",
|
||||||
|
"test:update-partial:debug": "node dist/scripts/test-update-partial-debug.js",
|
||||||
"db:rebuild": "node dist/scripts/rebuild-database.js",
|
"db:rebuild": "node dist/scripts/rebuild-database.js",
|
||||||
"db:init": "node -e \"new (require('./dist/services/sqlite-storage-service').SQLiteStorageService)(); console.log('Database initialized')\"",
|
"db:init": "node -e \"new (require('./dist/services/sqlite-storage-service').SQLiteStorageService)(); console.log('Database initialized')\"",
|
||||||
"docs:rebuild": "ts-node src/scripts/rebuild-database.ts"
|
"docs:rebuild": "ts-node src/scripts/rebuild-database.ts"
|
||||||
@@ -68,7 +72,7 @@
|
|||||||
"typescript": "^5.8.3"
|
"typescript": "^5.8.3"
|
||||||
},
|
},
|
||||||
"dependencies": {
|
"dependencies": {
|
||||||
"@modelcontextprotocol/sdk": "^1.12.1",
|
"@modelcontextprotocol/sdk": "^1.13.2",
|
||||||
"@n8n/n8n-nodes-langchain": "^1.98.1",
|
"@n8n/n8n-nodes-langchain": "^1.98.1",
|
||||||
"axios": "^1.10.0",
|
"axios": "^1.10.0",
|
||||||
"better-sqlite3": "^11.10.0",
|
"better-sqlite3": "^11.10.0",
|
||||||
|
|||||||
145
src/mcp/handlers-workflow-diff.ts
Normal file
145
src/mcp/handlers-workflow-diff.ts
Normal file
@@ -0,0 +1,145 @@
|
|||||||
|
/**
|
||||||
|
* MCP Handler for Partial Workflow Updates
|
||||||
|
* Handles diff-based workflow modifications
|
||||||
|
*/
|
||||||
|
|
||||||
|
import { z } from 'zod';
|
||||||
|
import { McpToolResponse } from '../types/n8n-api';
|
||||||
|
import { WorkflowDiffRequest, WorkflowDiffOperation } from '../types/workflow-diff';
|
||||||
|
import { WorkflowDiffEngine } from '../services/workflow-diff-engine';
|
||||||
|
import { getN8nApiClient } from './handlers-n8n-manager';
|
||||||
|
import { N8nApiError, getUserFriendlyErrorMessage } from '../utils/n8n-errors';
|
||||||
|
import { logger } from '../utils/logger';
|
||||||
|
|
||||||
|
// Zod schema for the diff request
|
||||||
|
const workflowDiffSchema = z.object({
|
||||||
|
id: z.string(),
|
||||||
|
operations: z.array(z.object({
|
||||||
|
type: z.string(),
|
||||||
|
description: z.string().optional(),
|
||||||
|
// Node operations
|
||||||
|
node: z.any().optional(),
|
||||||
|
nodeId: z.string().optional(),
|
||||||
|
nodeName: z.string().optional(),
|
||||||
|
changes: z.any().optional(),
|
||||||
|
position: z.tuple([z.number(), z.number()]).optional(),
|
||||||
|
// Connection operations
|
||||||
|
source: z.string().optional(),
|
||||||
|
target: z.string().optional(),
|
||||||
|
sourceOutput: z.string().optional(),
|
||||||
|
targetInput: z.string().optional(),
|
||||||
|
sourceIndex: z.number().optional(),
|
||||||
|
targetIndex: z.number().optional(),
|
||||||
|
// Metadata operations
|
||||||
|
settings: z.any().optional(),
|
||||||
|
name: z.string().optional(),
|
||||||
|
tag: z.string().optional(),
|
||||||
|
})),
|
||||||
|
validateOnly: z.boolean().optional(),
|
||||||
|
});
|
||||||
|
|
||||||
|
export async function handleUpdatePartialWorkflow(args: unknown): Promise<McpToolResponse> {
|
||||||
|
try {
|
||||||
|
// Debug: Log what Claude Desktop sends
|
||||||
|
logger.info('[DEBUG] Full args from Claude Desktop:', JSON.stringify(args, null, 2));
|
||||||
|
logger.info('[DEBUG] Args type:', typeof args);
|
||||||
|
if (args && typeof args === 'object') {
|
||||||
|
logger.info('[DEBUG] Args keys:', Object.keys(args as any));
|
||||||
|
}
|
||||||
|
|
||||||
|
// Validate input
|
||||||
|
const input = workflowDiffSchema.parse(args);
|
||||||
|
|
||||||
|
// Get API client
|
||||||
|
const client = getN8nApiClient();
|
||||||
|
if (!client) {
|
||||||
|
return {
|
||||||
|
success: false,
|
||||||
|
error: 'n8n API not configured. Please set N8N_API_URL and N8N_API_KEY environment variables.'
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
// Fetch current workflow
|
||||||
|
let workflow;
|
||||||
|
try {
|
||||||
|
workflow = await client.getWorkflow(input.id);
|
||||||
|
} catch (error) {
|
||||||
|
if (error instanceof N8nApiError) {
|
||||||
|
return {
|
||||||
|
success: false,
|
||||||
|
error: getUserFriendlyErrorMessage(error),
|
||||||
|
code: error.code
|
||||||
|
};
|
||||||
|
}
|
||||||
|
throw error;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Apply diff operations
|
||||||
|
const diffEngine = new WorkflowDiffEngine();
|
||||||
|
const diffResult = await diffEngine.applyDiff(workflow, input as WorkflowDiffRequest);
|
||||||
|
|
||||||
|
if (!diffResult.success) {
|
||||||
|
return {
|
||||||
|
success: false,
|
||||||
|
error: 'Failed to apply diff operations',
|
||||||
|
details: {
|
||||||
|
errors: diffResult.errors,
|
||||||
|
operationsApplied: diffResult.operationsApplied
|
||||||
|
}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
// If validateOnly, return validation result
|
||||||
|
if (input.validateOnly) {
|
||||||
|
return {
|
||||||
|
success: true,
|
||||||
|
message: diffResult.message,
|
||||||
|
data: {
|
||||||
|
valid: true,
|
||||||
|
operationsToApply: input.operations.length
|
||||||
|
}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
// Update workflow via API
|
||||||
|
try {
|
||||||
|
const updatedWorkflow = await client.updateWorkflow(input.id, diffResult.workflow!);
|
||||||
|
|
||||||
|
return {
|
||||||
|
success: true,
|
||||||
|
data: updatedWorkflow,
|
||||||
|
message: `Workflow "${updatedWorkflow.name}" updated successfully. Applied ${diffResult.operationsApplied} operations.`,
|
||||||
|
details: {
|
||||||
|
operationsApplied: diffResult.operationsApplied,
|
||||||
|
workflowId: updatedWorkflow.id,
|
||||||
|
workflowName: updatedWorkflow.name
|
||||||
|
}
|
||||||
|
};
|
||||||
|
} catch (error) {
|
||||||
|
if (error instanceof N8nApiError) {
|
||||||
|
return {
|
||||||
|
success: false,
|
||||||
|
error: getUserFriendlyErrorMessage(error),
|
||||||
|
code: error.code,
|
||||||
|
details: error.details as Record<string, unknown> | undefined
|
||||||
|
};
|
||||||
|
}
|
||||||
|
throw error;
|
||||||
|
}
|
||||||
|
} catch (error) {
|
||||||
|
if (error instanceof z.ZodError) {
|
||||||
|
return {
|
||||||
|
success: false,
|
||||||
|
error: 'Invalid input',
|
||||||
|
details: { errors: error.errors }
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
logger.error('Failed to update partial workflow', error);
|
||||||
|
return {
|
||||||
|
success: false,
|
||||||
|
error: error instanceof Error ? error.message : 'Unknown error occurred'
|
||||||
|
};
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
@@ -23,6 +23,7 @@ import { TemplateService } from '../templates/template-service';
|
|||||||
import { WorkflowValidator } from '../services/workflow-validator';
|
import { WorkflowValidator } from '../services/workflow-validator';
|
||||||
import { isN8nApiConfigured } from '../config/n8n-api';
|
import { isN8nApiConfigured } from '../config/n8n-api';
|
||||||
import * as n8nHandlers from './handlers-n8n-manager';
|
import * as n8nHandlers from './handlers-n8n-manager';
|
||||||
|
import { handleUpdatePartialWorkflow } from './handlers-workflow-diff';
|
||||||
|
|
||||||
interface NodeRow {
|
interface NodeRow {
|
||||||
node_type: string;
|
node_type: string;
|
||||||
@@ -236,8 +237,10 @@ export class N8NDocumentationMCPServer {
|
|||||||
return n8nHandlers.handleGetWorkflowStructure(args);
|
return n8nHandlers.handleGetWorkflowStructure(args);
|
||||||
case 'n8n_get_workflow_minimal':
|
case 'n8n_get_workflow_minimal':
|
||||||
return n8nHandlers.handleGetWorkflowMinimal(args);
|
return n8nHandlers.handleGetWorkflowMinimal(args);
|
||||||
case 'n8n_update_workflow':
|
case 'n8n_update_full_workflow':
|
||||||
return n8nHandlers.handleUpdateWorkflow(args);
|
return n8nHandlers.handleUpdateWorkflow(args);
|
||||||
|
case 'n8n_update_partial_workflow':
|
||||||
|
return handleUpdatePartialWorkflow(args);
|
||||||
case 'n8n_delete_workflow':
|
case 'n8n_delete_workflow':
|
||||||
return n8nHandlers.handleDeleteWorkflow(args);
|
return n8nHandlers.handleDeleteWorkflow(args);
|
||||||
case 'n8n_list_workflows':
|
case 'n8n_list_workflows':
|
||||||
|
|||||||
@@ -125,8 +125,8 @@ export const n8nManagementTools: ToolDefinition[] = [
|
|||||||
}
|
}
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
name: 'n8n_update_workflow',
|
name: 'n8n_update_full_workflow',
|
||||||
description: `Update an existing workflow. Requires the full nodes array when modifying nodes/connections. Cannot activate workflows via API - use UI instead.`,
|
description: `Update an existing workflow with complete replacement. Requires the full nodes array and connections object when modifying workflow structure. Use n8n_update_partial_workflow for incremental changes. Cannot activate workflows via API - use UI instead.`,
|
||||||
inputSchema: {
|
inputSchema: {
|
||||||
type: 'object',
|
type: 'object',
|
||||||
properties: {
|
properties: {
|
||||||
@@ -154,6 +154,135 @@ export const n8nManagementTools: ToolDefinition[] = [
|
|||||||
required: ['id']
|
required: ['id']
|
||||||
}
|
}
|
||||||
},
|
},
|
||||||
|
{
|
||||||
|
name: 'n8n_update_partial_workflow',
|
||||||
|
description: `Update a workflow using diff operations for precise, incremental changes. More efficient than n8n_update_full_workflow for small modifications. Supports adding/removing/updating nodes and connections without sending the entire workflow.
|
||||||
|
|
||||||
|
PARAMETERS:
|
||||||
|
• id (required) - Workflow ID to update
|
||||||
|
• operations (required) - Array of operations to apply (max 5)
|
||||||
|
• validateOnly (optional) - Test operations without applying (default: false)
|
||||||
|
|
||||||
|
TRANSACTIONAL UPDATES (v2.7.0+):
|
||||||
|
• Maximum 5 operations per request for reliability
|
||||||
|
• Two-pass processing: nodes first, then connections/metadata
|
||||||
|
• Add nodes and connect them in the same request
|
||||||
|
• Operations can be in any order - engine handles dependencies
|
||||||
|
|
||||||
|
IMPORTANT NOTES:
|
||||||
|
• Operations are atomic - all succeed or all fail
|
||||||
|
• Use validateOnly: true to test before applying
|
||||||
|
• Node references use NAME, not ID (except in node definition)
|
||||||
|
• updateNode with nested paths: use dot notation like "parameters.values[0]"
|
||||||
|
• All nodes require: id, name, type, typeVersion, position, parameters
|
||||||
|
|
||||||
|
OPERATION TYPES:
|
||||||
|
|
||||||
|
addNode - Add a new node
|
||||||
|
Required: node object with id, name, type, typeVersion, position, parameters
|
||||||
|
Example: {
|
||||||
|
type: "addNode",
|
||||||
|
node: {
|
||||||
|
id: "unique_id",
|
||||||
|
name: "HTTP Request",
|
||||||
|
type: "n8n-nodes-base.httpRequest",
|
||||||
|
typeVersion: 4.2,
|
||||||
|
position: [400, 300],
|
||||||
|
parameters: { url: "https://api.example.com", method: "GET" }
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
removeNode - Remove node by name
|
||||||
|
Required: nodeName or nodeId
|
||||||
|
Example: {type: "removeNode", nodeName: "Old Node"}
|
||||||
|
|
||||||
|
updateNode - Update node properties
|
||||||
|
Required: nodeName, changes
|
||||||
|
Example: {type: "updateNode", nodeName: "Webhook", changes: {"parameters.path": "/new-path"}}
|
||||||
|
|
||||||
|
moveNode - Change node position
|
||||||
|
Required: nodeName, position
|
||||||
|
Example: {type: "moveNode", nodeName: "Set", position: [600, 400]}
|
||||||
|
|
||||||
|
enableNode/disableNode - Toggle node status
|
||||||
|
Required: nodeName
|
||||||
|
Example: {type: "disableNode", nodeName: "Debug"}
|
||||||
|
|
||||||
|
addConnection - Connect nodes
|
||||||
|
Required: source, target
|
||||||
|
Optional: sourceOutput (default: "main"), targetInput (default: "main"),
|
||||||
|
sourceIndex (default: 0), targetIndex (default: 0)
|
||||||
|
Example: {
|
||||||
|
type: "addConnection",
|
||||||
|
source: "Webhook",
|
||||||
|
target: "Set",
|
||||||
|
sourceOutput: "main", // for nodes with multiple outputs
|
||||||
|
targetInput: "main" // for nodes with multiple inputs
|
||||||
|
}
|
||||||
|
|
||||||
|
removeConnection - Disconnect nodes
|
||||||
|
Required: source, target
|
||||||
|
Optional: sourceOutput, targetInput
|
||||||
|
Example: {type: "removeConnection", source: "Set", target: "HTTP Request"}
|
||||||
|
|
||||||
|
updateSettings - Change workflow settings
|
||||||
|
Required: settings object
|
||||||
|
Example: {type: "updateSettings", settings: {executionOrder: "v1", timezone: "Europe/Berlin"}}
|
||||||
|
|
||||||
|
updateName - Rename workflow
|
||||||
|
Required: name
|
||||||
|
Example: {type: "updateName", name: "New Workflow Name"}
|
||||||
|
|
||||||
|
addTag/removeTag - Manage tags
|
||||||
|
Required: tag
|
||||||
|
Example: {type: "addTag", tag: "production"}
|
||||||
|
|
||||||
|
EXAMPLES:
|
||||||
|
|
||||||
|
Simple update:
|
||||||
|
operations: [
|
||||||
|
{type: "updateName", name: "My Updated Workflow"},
|
||||||
|
{type: "disableNode", nodeName: "Debug Node"}
|
||||||
|
]
|
||||||
|
|
||||||
|
Complex example - Add nodes and connect (any order works):
|
||||||
|
operations: [
|
||||||
|
{type: "addConnection", source: "Webhook", target: "Format Date"},
|
||||||
|
{type: "addNode", node: {id: "abc123", name: "Format Date", type: "n8n-nodes-base.dateTime", typeVersion: 2, position: [400, 300], parameters: {}}},
|
||||||
|
{type: "addConnection", source: "Format Date", target: "Logger"},
|
||||||
|
{type: "addNode", node: {id: "def456", name: "Logger", type: "n8n-nodes-base.n8n", typeVersion: 1, position: [600, 300], parameters: {}}}
|
||||||
|
]
|
||||||
|
|
||||||
|
Validation example:
|
||||||
|
{
|
||||||
|
id: "workflow-id",
|
||||||
|
operations: [{type: "addNode", node: {...}}],
|
||||||
|
validateOnly: true // Test without applying
|
||||||
|
}`,
|
||||||
|
inputSchema: {
|
||||||
|
type: 'object',
|
||||||
|
additionalProperties: true, // Allow any extra properties Claude Desktop might add
|
||||||
|
properties: {
|
||||||
|
id: {
|
||||||
|
type: 'string',
|
||||||
|
description: 'Workflow ID to update'
|
||||||
|
},
|
||||||
|
operations: {
|
||||||
|
type: 'array',
|
||||||
|
description: 'Array of diff operations to apply. Each operation must have a "type" field and relevant properties for that operation type.',
|
||||||
|
items: {
|
||||||
|
type: 'object',
|
||||||
|
additionalProperties: true
|
||||||
|
}
|
||||||
|
},
|
||||||
|
validateOnly: {
|
||||||
|
type: 'boolean',
|
||||||
|
description: 'If true, only validate operations without applying them'
|
||||||
|
}
|
||||||
|
},
|
||||||
|
required: ['id', 'operations']
|
||||||
|
}
|
||||||
|
},
|
||||||
{
|
{
|
||||||
name: 'n8n_delete_workflow',
|
name: 'n8n_delete_workflow',
|
||||||
description: `Permanently delete a workflow. This action cannot be undone.`,
|
description: `Permanently delete a workflow. This action cannot be undone.`,
|
||||||
|
|||||||
162
src/scripts/test-mcp-n8n-update-partial.ts
Normal file
162
src/scripts/test-mcp-n8n-update-partial.ts
Normal file
@@ -0,0 +1,162 @@
|
|||||||
|
#!/usr/bin/env node
|
||||||
|
/**
|
||||||
|
* Integration test for n8n_update_partial_workflow MCP tool
|
||||||
|
* Tests that the tool can be called successfully via MCP protocol
|
||||||
|
*/
|
||||||
|
|
||||||
|
import { config } from 'dotenv';
|
||||||
|
import { logger } from '../utils/logger';
|
||||||
|
import { isN8nApiConfigured } from '../config/n8n-api';
|
||||||
|
import { handleUpdatePartialWorkflow } from '../mcp/handlers-workflow-diff';
|
||||||
|
|
||||||
|
// Load environment variables
|
||||||
|
config();
|
||||||
|
|
||||||
|
async function testMcpUpdatePartialWorkflow() {
|
||||||
|
logger.info('Testing n8n_update_partial_workflow MCP tool...');
|
||||||
|
|
||||||
|
// Check if API is configured
|
||||||
|
if (!isN8nApiConfigured()) {
|
||||||
|
logger.warn('n8n API not configured. Set N8N_API_URL and N8N_API_KEY to test.');
|
||||||
|
logger.info('Example:');
|
||||||
|
logger.info(' N8N_API_URL=https://your-n8n.com N8N_API_KEY=your-key npm run test:mcp:update-partial');
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Test 1: Validate only - should work without actual workflow
|
||||||
|
logger.info('\n=== Test 1: Validate Only (no actual workflow needed) ===');
|
||||||
|
|
||||||
|
const validateOnlyRequest = {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
operations: [
|
||||||
|
{
|
||||||
|
type: 'addNode',
|
||||||
|
description: 'Add HTTP Request node',
|
||||||
|
node: {
|
||||||
|
name: 'HTTP Request',
|
||||||
|
type: 'n8n-nodes-base.httpRequest',
|
||||||
|
position: [400, 300],
|
||||||
|
parameters: {
|
||||||
|
url: 'https://api.example.com/data',
|
||||||
|
method: 'GET'
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: 'addConnection',
|
||||||
|
source: 'Start',
|
||||||
|
target: 'HTTP Request'
|
||||||
|
}
|
||||||
|
],
|
||||||
|
validateOnly: true
|
||||||
|
};
|
||||||
|
|
||||||
|
try {
|
||||||
|
const result = await handleUpdatePartialWorkflow(validateOnlyRequest);
|
||||||
|
logger.info('Validation result:', JSON.stringify(result, null, 2));
|
||||||
|
} catch (error) {
|
||||||
|
logger.error('Validation test failed:', error);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Test 2: Test with missing required fields
|
||||||
|
logger.info('\n=== Test 2: Missing Required Fields ===');
|
||||||
|
|
||||||
|
const invalidRequest = {
|
||||||
|
operations: [{
|
||||||
|
type: 'addNode'
|
||||||
|
// Missing node property
|
||||||
|
}]
|
||||||
|
// Missing id
|
||||||
|
};
|
||||||
|
|
||||||
|
try {
|
||||||
|
const result = await handleUpdatePartialWorkflow(invalidRequest);
|
||||||
|
logger.info('Should fail with validation error:', JSON.stringify(result, null, 2));
|
||||||
|
} catch (error) {
|
||||||
|
logger.info('Expected validation error:', error instanceof Error ? error.message : String(error));
|
||||||
|
}
|
||||||
|
|
||||||
|
// Test 3: Test with complex operations array
|
||||||
|
logger.info('\n=== Test 3: Complex Operations Array ===');
|
||||||
|
|
||||||
|
const complexRequest = {
|
||||||
|
id: 'workflow-456',
|
||||||
|
operations: [
|
||||||
|
{
|
||||||
|
type: 'updateNode',
|
||||||
|
nodeName: 'Webhook',
|
||||||
|
changes: {
|
||||||
|
'parameters.path': 'new-webhook-path',
|
||||||
|
'parameters.method': 'POST'
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: 'addNode',
|
||||||
|
node: {
|
||||||
|
name: 'Set',
|
||||||
|
type: 'n8n-nodes-base.set',
|
||||||
|
typeVersion: 3,
|
||||||
|
position: [600, 300],
|
||||||
|
parameters: {
|
||||||
|
mode: 'manual',
|
||||||
|
fields: {
|
||||||
|
values: [
|
||||||
|
{ name: 'status', value: 'processed' }
|
||||||
|
]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: 'addConnection',
|
||||||
|
source: 'Webhook',
|
||||||
|
target: 'Set'
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: 'updateName',
|
||||||
|
name: 'Updated Workflow Name'
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: 'addTag',
|
||||||
|
tag: 'production'
|
||||||
|
}
|
||||||
|
],
|
||||||
|
validateOnly: true
|
||||||
|
};
|
||||||
|
|
||||||
|
try {
|
||||||
|
const result = await handleUpdatePartialWorkflow(complexRequest);
|
||||||
|
logger.info('Complex operations result:', JSON.stringify(result, null, 2));
|
||||||
|
} catch (error) {
|
||||||
|
logger.error('Complex operations test failed:', error);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Test 4: Test operation type validation
|
||||||
|
logger.info('\n=== Test 4: Invalid Operation Type ===');
|
||||||
|
|
||||||
|
const invalidTypeRequest = {
|
||||||
|
id: 'workflow-789',
|
||||||
|
operations: [{
|
||||||
|
type: 'invalidOperation',
|
||||||
|
something: 'else'
|
||||||
|
}],
|
||||||
|
validateOnly: true
|
||||||
|
};
|
||||||
|
|
||||||
|
try {
|
||||||
|
const result = await handleUpdatePartialWorkflow(invalidTypeRequest);
|
||||||
|
logger.info('Invalid type result:', JSON.stringify(result, null, 2));
|
||||||
|
} catch (error) {
|
||||||
|
logger.info('Expected error for invalid type:', error instanceof Error ? error.message : String(error));
|
||||||
|
}
|
||||||
|
|
||||||
|
logger.info('\n✅ MCP tool integration tests completed!');
|
||||||
|
logger.info('\nNOTE: These tests verify the MCP tool can be called without errors.');
|
||||||
|
logger.info('To test with real workflows, ensure N8N_API_URL and N8N_API_KEY are set.');
|
||||||
|
}
|
||||||
|
|
||||||
|
// Run tests
|
||||||
|
testMcpUpdatePartialWorkflow().catch(error => {
|
||||||
|
logger.error('Unhandled error:', error);
|
||||||
|
process.exit(1);
|
||||||
|
});
|
||||||
276
src/scripts/test-transactional-diff.ts
Normal file
276
src/scripts/test-transactional-diff.ts
Normal file
@@ -0,0 +1,276 @@
|
|||||||
|
/**
|
||||||
|
* Test script for transactional workflow diff operations
|
||||||
|
* Tests the two-pass processing approach
|
||||||
|
*/
|
||||||
|
|
||||||
|
import { WorkflowDiffEngine } from '../services/workflow-diff-engine';
|
||||||
|
import { Workflow, WorkflowNode } from '../types/n8n-api';
|
||||||
|
import { WorkflowDiffRequest } from '../types/workflow-diff';
|
||||||
|
import { Logger } from '../utils/logger';
|
||||||
|
|
||||||
|
const logger = new Logger({ prefix: '[TestTransactionalDiff]' });
|
||||||
|
|
||||||
|
// Create a test workflow
|
||||||
|
const testWorkflow: Workflow = {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
name: 'Test Workflow',
|
||||||
|
active: false,
|
||||||
|
nodes: [
|
||||||
|
{
|
||||||
|
id: '1',
|
||||||
|
name: 'Webhook',
|
||||||
|
type: 'n8n-nodes-base.webhook',
|
||||||
|
typeVersion: 2,
|
||||||
|
position: [200, 300],
|
||||||
|
parameters: {
|
||||||
|
path: '/test',
|
||||||
|
method: 'GET'
|
||||||
|
}
|
||||||
|
}
|
||||||
|
],
|
||||||
|
connections: {},
|
||||||
|
settings: {
|
||||||
|
executionOrder: 'v1'
|
||||||
|
},
|
||||||
|
tags: []
|
||||||
|
};
|
||||||
|
|
||||||
|
async function testAddNodesAndConnect() {
|
||||||
|
logger.info('Test 1: Add two nodes and connect them in one operation');
|
||||||
|
|
||||||
|
const engine = new WorkflowDiffEngine();
|
||||||
|
const request: WorkflowDiffRequest = {
|
||||||
|
id: testWorkflow.id!,
|
||||||
|
operations: [
|
||||||
|
// Add connections first (would fail in old implementation)
|
||||||
|
{
|
||||||
|
type: 'addConnection',
|
||||||
|
source: 'Webhook',
|
||||||
|
target: 'Process Data'
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: 'addConnection',
|
||||||
|
source: 'Process Data',
|
||||||
|
target: 'Send Email'
|
||||||
|
},
|
||||||
|
// Then add the nodes (two-pass will process these first)
|
||||||
|
{
|
||||||
|
type: 'addNode',
|
||||||
|
node: {
|
||||||
|
id: '2',
|
||||||
|
name: 'Process Data',
|
||||||
|
type: 'n8n-nodes-base.set',
|
||||||
|
typeVersion: 3,
|
||||||
|
position: [400, 300],
|
||||||
|
parameters: {
|
||||||
|
mode: 'manual',
|
||||||
|
fields: []
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: 'addNode',
|
||||||
|
node: {
|
||||||
|
id: '3',
|
||||||
|
name: 'Send Email',
|
||||||
|
type: 'n8n-nodes-base.emailSend',
|
||||||
|
typeVersion: 2.1,
|
||||||
|
position: [600, 300],
|
||||||
|
parameters: {
|
||||||
|
to: 'test@example.com',
|
||||||
|
subject: 'Test'
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
]
|
||||||
|
};
|
||||||
|
|
||||||
|
const result = await engine.applyDiff(testWorkflow, request);
|
||||||
|
|
||||||
|
if (result.success) {
|
||||||
|
logger.info('✅ Test passed! Operations applied successfully');
|
||||||
|
logger.info(`Message: ${result.message}`);
|
||||||
|
|
||||||
|
// Verify nodes were added
|
||||||
|
const workflow = result.workflow!;
|
||||||
|
const hasProcessData = workflow.nodes.some((n: WorkflowNode) => n.name === 'Process Data');
|
||||||
|
const hasSendEmail = workflow.nodes.some((n: WorkflowNode) => n.name === 'Send Email');
|
||||||
|
|
||||||
|
if (hasProcessData && hasSendEmail) {
|
||||||
|
logger.info('✅ Both nodes were added');
|
||||||
|
} else {
|
||||||
|
logger.error('❌ Nodes were not added correctly');
|
||||||
|
}
|
||||||
|
|
||||||
|
// Verify connections were made
|
||||||
|
const webhookConnections = workflow.connections['Webhook'];
|
||||||
|
const processConnections = workflow.connections['Process Data'];
|
||||||
|
|
||||||
|
if (webhookConnections && processConnections) {
|
||||||
|
logger.info('✅ Connections were established');
|
||||||
|
} else {
|
||||||
|
logger.error('❌ Connections were not established correctly');
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
logger.error('❌ Test failed!');
|
||||||
|
logger.error('Errors:', result.errors);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function testOperationLimit() {
|
||||||
|
logger.info('\nTest 2: Operation limit (max 5)');
|
||||||
|
|
||||||
|
const engine = new WorkflowDiffEngine();
|
||||||
|
const request: WorkflowDiffRequest = {
|
||||||
|
id: testWorkflow.id!,
|
||||||
|
operations: [
|
||||||
|
{ type: 'addNode', node: { id: '101', name: 'Node1', type: 'n8n-nodes-base.set', typeVersion: 1, position: [400, 100], parameters: {} } },
|
||||||
|
{ type: 'addNode', node: { id: '102', name: 'Node2', type: 'n8n-nodes-base.set', typeVersion: 1, position: [400, 200], parameters: {} } },
|
||||||
|
{ type: 'addNode', node: { id: '103', name: 'Node3', type: 'n8n-nodes-base.set', typeVersion: 1, position: [400, 300], parameters: {} } },
|
||||||
|
{ type: 'addNode', node: { id: '104', name: 'Node4', type: 'n8n-nodes-base.set', typeVersion: 1, position: [400, 400], parameters: {} } },
|
||||||
|
{ type: 'addNode', node: { id: '105', name: 'Node5', type: 'n8n-nodes-base.set', typeVersion: 1, position: [400, 500], parameters: {} } },
|
||||||
|
{ type: 'addNode', node: { id: '106', name: 'Node6', type: 'n8n-nodes-base.set', typeVersion: 1, position: [400, 600], parameters: {} } }
|
||||||
|
]
|
||||||
|
};
|
||||||
|
|
||||||
|
const result = await engine.applyDiff(testWorkflow, request);
|
||||||
|
|
||||||
|
if (!result.success && result.errors?.[0]?.message.includes('Too many operations')) {
|
||||||
|
logger.info('✅ Operation limit enforced correctly');
|
||||||
|
} else {
|
||||||
|
logger.error('❌ Operation limit not enforced');
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function testValidateOnly() {
|
||||||
|
logger.info('\nTest 3: Validate only mode');
|
||||||
|
|
||||||
|
const engine = new WorkflowDiffEngine();
|
||||||
|
const request: WorkflowDiffRequest = {
|
||||||
|
id: testWorkflow.id!,
|
||||||
|
operations: [
|
||||||
|
// Test with connection first - two-pass should handle this
|
||||||
|
{
|
||||||
|
type: 'addConnection',
|
||||||
|
source: 'Webhook',
|
||||||
|
target: 'HTTP Request'
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: 'addNode',
|
||||||
|
node: {
|
||||||
|
id: '4',
|
||||||
|
name: 'HTTP Request',
|
||||||
|
type: 'n8n-nodes-base.httpRequest',
|
||||||
|
typeVersion: 4.2,
|
||||||
|
position: [400, 300],
|
||||||
|
parameters: {
|
||||||
|
method: 'GET',
|
||||||
|
url: 'https://api.example.com'
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: 'updateSettings',
|
||||||
|
settings: {
|
||||||
|
saveDataErrorExecution: 'all'
|
||||||
|
}
|
||||||
|
}
|
||||||
|
],
|
||||||
|
validateOnly: true
|
||||||
|
};
|
||||||
|
|
||||||
|
const result = await engine.applyDiff(testWorkflow, request);
|
||||||
|
|
||||||
|
if (result.success) {
|
||||||
|
logger.info('✅ Validate-only mode works correctly');
|
||||||
|
logger.info(`Validation message: ${result.message}`);
|
||||||
|
|
||||||
|
// Verify original workflow wasn't modified
|
||||||
|
if (testWorkflow.nodes.length === 1) {
|
||||||
|
logger.info('✅ Original workflow unchanged');
|
||||||
|
} else {
|
||||||
|
logger.error('❌ Original workflow was modified in validate-only mode');
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
logger.error('❌ Validate-only mode failed');
|
||||||
|
logger.error('Errors:', result.errors);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function testMixedOperations() {
|
||||||
|
logger.info('\nTest 4: Mixed operations (update existing, add new, connect)');
|
||||||
|
|
||||||
|
const engine = new WorkflowDiffEngine();
|
||||||
|
const request: WorkflowDiffRequest = {
|
||||||
|
id: testWorkflow.id!,
|
||||||
|
operations: [
|
||||||
|
// Update existing node
|
||||||
|
{
|
||||||
|
type: 'updateNode',
|
||||||
|
nodeName: 'Webhook',
|
||||||
|
changes: {
|
||||||
|
'parameters.path': '/updated-path'
|
||||||
|
}
|
||||||
|
},
|
||||||
|
// Add new node
|
||||||
|
{
|
||||||
|
type: 'addNode',
|
||||||
|
node: {
|
||||||
|
id: '5',
|
||||||
|
name: 'Logger',
|
||||||
|
type: 'n8n-nodes-base.n8n',
|
||||||
|
typeVersion: 1,
|
||||||
|
position: [400, 300],
|
||||||
|
parameters: {
|
||||||
|
operation: 'log',
|
||||||
|
level: 'info'
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
// Connect them
|
||||||
|
{
|
||||||
|
type: 'addConnection',
|
||||||
|
source: 'Webhook',
|
||||||
|
target: 'Logger'
|
||||||
|
},
|
||||||
|
// Update workflow settings
|
||||||
|
{
|
||||||
|
type: 'updateSettings',
|
||||||
|
settings: {
|
||||||
|
saveDataErrorExecution: 'all'
|
||||||
|
}
|
||||||
|
}
|
||||||
|
]
|
||||||
|
};
|
||||||
|
|
||||||
|
const result = await engine.applyDiff(testWorkflow, request);
|
||||||
|
|
||||||
|
if (result.success) {
|
||||||
|
logger.info('✅ Mixed operations applied successfully');
|
||||||
|
logger.info(`Message: ${result.message}`);
|
||||||
|
} else {
|
||||||
|
logger.error('❌ Mixed operations failed');
|
||||||
|
logger.error('Errors:', result.errors);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Run all tests
|
||||||
|
async function runTests() {
|
||||||
|
logger.info('Starting transactional diff tests...\n');
|
||||||
|
|
||||||
|
try {
|
||||||
|
await testAddNodesAndConnect();
|
||||||
|
await testOperationLimit();
|
||||||
|
await testValidateOnly();
|
||||||
|
await testMixedOperations();
|
||||||
|
|
||||||
|
logger.info('\n✅ All tests completed!');
|
||||||
|
} catch (error) {
|
||||||
|
logger.error('Test suite failed:', error);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Run tests if this file is executed directly
|
||||||
|
if (require.main === module) {
|
||||||
|
runTests().catch(console.error);
|
||||||
|
}
|
||||||
114
src/scripts/test-update-partial-debug.ts
Normal file
114
src/scripts/test-update-partial-debug.ts
Normal file
@@ -0,0 +1,114 @@
|
|||||||
|
#!/usr/bin/env node
|
||||||
|
/**
|
||||||
|
* Debug test for n8n_update_partial_workflow
|
||||||
|
* Tests the actual update path to identify the issue
|
||||||
|
*/
|
||||||
|
|
||||||
|
import { config } from 'dotenv';
|
||||||
|
import { logger } from '../utils/logger';
|
||||||
|
import { isN8nApiConfigured } from '../config/n8n-api';
|
||||||
|
import { handleUpdatePartialWorkflow } from '../mcp/handlers-workflow-diff';
|
||||||
|
import { getN8nApiClient } from '../mcp/handlers-n8n-manager';
|
||||||
|
|
||||||
|
// Load environment variables
|
||||||
|
config();
|
||||||
|
|
||||||
|
async function testUpdatePartialDebug() {
|
||||||
|
logger.info('Debug test for n8n_update_partial_workflow...');
|
||||||
|
|
||||||
|
// Check if API is configured
|
||||||
|
if (!isN8nApiConfigured()) {
|
||||||
|
logger.warn('n8n API not configured. This test requires a real n8n instance.');
|
||||||
|
logger.info('Set N8N_API_URL and N8N_API_KEY to test.');
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
const client = getN8nApiClient();
|
||||||
|
if (!client) {
|
||||||
|
logger.error('Failed to create n8n API client');
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
try {
|
||||||
|
// First, create a test workflow
|
||||||
|
logger.info('\n=== Creating test workflow ===');
|
||||||
|
|
||||||
|
const testWorkflow = {
|
||||||
|
name: `Test Partial Update ${Date.now()}`,
|
||||||
|
nodes: [
|
||||||
|
{
|
||||||
|
id: '1',
|
||||||
|
name: 'Start',
|
||||||
|
type: 'n8n-nodes-base.start',
|
||||||
|
typeVersion: 1,
|
||||||
|
position: [250, 300] as [number, number],
|
||||||
|
parameters: {}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
id: '2',
|
||||||
|
name: 'Set',
|
||||||
|
type: 'n8n-nodes-base.set',
|
||||||
|
typeVersion: 3,
|
||||||
|
position: [450, 300] as [number, number],
|
||||||
|
parameters: {
|
||||||
|
mode: 'manual',
|
||||||
|
fields: {
|
||||||
|
values: [
|
||||||
|
{ name: 'message', value: 'Initial value' }
|
||||||
|
]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
],
|
||||||
|
connections: {
|
||||||
|
'Start': {
|
||||||
|
main: [[{ node: 'Set', type: 'main', index: 0 }]]
|
||||||
|
}
|
||||||
|
},
|
||||||
|
settings: {
|
||||||
|
executionOrder: 'v1' as 'v1'
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
const createdWorkflow = await client.createWorkflow(testWorkflow);
|
||||||
|
logger.info('Created workflow:', {
|
||||||
|
id: createdWorkflow.id,
|
||||||
|
name: createdWorkflow.name
|
||||||
|
});
|
||||||
|
|
||||||
|
// Now test partial update WITHOUT validateOnly
|
||||||
|
logger.info('\n=== Testing partial update (NO validateOnly) ===');
|
||||||
|
|
||||||
|
const updateRequest = {
|
||||||
|
id: createdWorkflow.id!,
|
||||||
|
operations: [
|
||||||
|
{
|
||||||
|
type: 'updateName',
|
||||||
|
name: 'Updated via Partial Update'
|
||||||
|
}
|
||||||
|
]
|
||||||
|
// Note: NO validateOnly flag
|
||||||
|
};
|
||||||
|
|
||||||
|
logger.info('Update request:', JSON.stringify(updateRequest, null, 2));
|
||||||
|
|
||||||
|
const result = await handleUpdatePartialWorkflow(updateRequest);
|
||||||
|
logger.info('Update result:', JSON.stringify(result, null, 2));
|
||||||
|
|
||||||
|
// Cleanup - delete test workflow
|
||||||
|
if (createdWorkflow.id) {
|
||||||
|
logger.info('\n=== Cleanup ===');
|
||||||
|
await client.deleteWorkflow(createdWorkflow.id);
|
||||||
|
logger.info('Deleted test workflow');
|
||||||
|
}
|
||||||
|
|
||||||
|
} catch (error) {
|
||||||
|
logger.error('Test failed:', error);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Run test
|
||||||
|
testUpdatePartialDebug().catch(error => {
|
||||||
|
logger.error('Unhandled error:', error);
|
||||||
|
process.exit(1);
|
||||||
|
});
|
||||||
374
src/scripts/test-workflow-diff.ts
Normal file
374
src/scripts/test-workflow-diff.ts
Normal file
@@ -0,0 +1,374 @@
|
|||||||
|
#!/usr/bin/env node
|
||||||
|
/**
|
||||||
|
* Test script for workflow diff engine
|
||||||
|
* Tests various diff operations and edge cases
|
||||||
|
*/
|
||||||
|
|
||||||
|
import { WorkflowDiffEngine } from '../services/workflow-diff-engine';
|
||||||
|
import { WorkflowDiffRequest } from '../types/workflow-diff';
|
||||||
|
import { Workflow } from '../types/n8n-api';
|
||||||
|
import { Logger } from '../utils/logger';
|
||||||
|
|
||||||
|
const logger = new Logger({ prefix: '[test-workflow-diff]' });
|
||||||
|
|
||||||
|
// Sample workflow for testing
|
||||||
|
const sampleWorkflow: Workflow = {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
name: 'Test Workflow',
|
||||||
|
nodes: [
|
||||||
|
{
|
||||||
|
id: 'webhook_1',
|
||||||
|
name: 'Webhook',
|
||||||
|
type: 'n8n-nodes-base.webhook',
|
||||||
|
typeVersion: 1.1,
|
||||||
|
position: [200, 200],
|
||||||
|
parameters: {
|
||||||
|
path: 'test-webhook',
|
||||||
|
method: 'GET'
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
id: 'set_1',
|
||||||
|
name: 'Set',
|
||||||
|
type: 'n8n-nodes-base.set',
|
||||||
|
typeVersion: 3,
|
||||||
|
position: [400, 200],
|
||||||
|
parameters: {
|
||||||
|
mode: 'manual',
|
||||||
|
fields: {
|
||||||
|
values: [
|
||||||
|
{ name: 'message', value: 'Hello World' }
|
||||||
|
]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
],
|
||||||
|
connections: {
|
||||||
|
'Webhook': {
|
||||||
|
main: [[{ node: 'Set', type: 'main', index: 0 }]]
|
||||||
|
}
|
||||||
|
},
|
||||||
|
settings: {
|
||||||
|
executionOrder: 'v1',
|
||||||
|
saveDataSuccessExecution: 'all'
|
||||||
|
},
|
||||||
|
tags: ['test', 'demo']
|
||||||
|
};
|
||||||
|
|
||||||
|
async function testAddNode() {
|
||||||
|
console.log('\n=== Testing Add Node Operation ===');
|
||||||
|
|
||||||
|
const engine = new WorkflowDiffEngine();
|
||||||
|
const request: WorkflowDiffRequest = {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
operations: [
|
||||||
|
{
|
||||||
|
type: 'addNode',
|
||||||
|
description: 'Add HTTP Request node',
|
||||||
|
node: {
|
||||||
|
name: 'HTTP Request',
|
||||||
|
type: 'n8n-nodes-base.httpRequest',
|
||||||
|
position: [600, 200],
|
||||||
|
parameters: {
|
||||||
|
url: 'https://api.example.com/data',
|
||||||
|
method: 'GET'
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
]
|
||||||
|
};
|
||||||
|
|
||||||
|
const result = await engine.applyDiff(sampleWorkflow, request);
|
||||||
|
|
||||||
|
if (result.success) {
|
||||||
|
console.log('✅ Add node successful');
|
||||||
|
console.log(` - Nodes count: ${result.workflow!.nodes.length}`);
|
||||||
|
console.log(` - New node: ${result.workflow!.nodes[2].name}`);
|
||||||
|
} else {
|
||||||
|
console.error('❌ Add node failed:', result.errors);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function testRemoveNode() {
|
||||||
|
console.log('\n=== Testing Remove Node Operation ===');
|
||||||
|
|
||||||
|
const engine = new WorkflowDiffEngine();
|
||||||
|
const request: WorkflowDiffRequest = {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
operations: [
|
||||||
|
{
|
||||||
|
type: 'removeNode',
|
||||||
|
description: 'Remove Set node',
|
||||||
|
nodeName: 'Set'
|
||||||
|
}
|
||||||
|
]
|
||||||
|
};
|
||||||
|
|
||||||
|
const result = await engine.applyDiff(sampleWorkflow, request);
|
||||||
|
|
||||||
|
if (result.success) {
|
||||||
|
console.log('✅ Remove node successful');
|
||||||
|
console.log(` - Nodes count: ${result.workflow!.nodes.length}`);
|
||||||
|
console.log(` - Connections cleaned: ${Object.keys(result.workflow!.connections).length}`);
|
||||||
|
} else {
|
||||||
|
console.error('❌ Remove node failed:', result.errors);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function testUpdateNode() {
|
||||||
|
console.log('\n=== Testing Update Node Operation ===');
|
||||||
|
|
||||||
|
const engine = new WorkflowDiffEngine();
|
||||||
|
const request: WorkflowDiffRequest = {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
operations: [
|
||||||
|
{
|
||||||
|
type: 'updateNode',
|
||||||
|
description: 'Update webhook path',
|
||||||
|
nodeName: 'Webhook',
|
||||||
|
changes: {
|
||||||
|
'parameters.path': 'new-webhook-path',
|
||||||
|
'parameters.method': 'POST'
|
||||||
|
}
|
||||||
|
}
|
||||||
|
]
|
||||||
|
};
|
||||||
|
|
||||||
|
const result = await engine.applyDiff(sampleWorkflow, request);
|
||||||
|
|
||||||
|
if (result.success) {
|
||||||
|
console.log('✅ Update node successful');
|
||||||
|
const updatedNode = result.workflow!.nodes.find((n: any) => n.name === 'Webhook');
|
||||||
|
console.log(` - New path: ${updatedNode!.parameters.path}`);
|
||||||
|
console.log(` - New method: ${updatedNode!.parameters.method}`);
|
||||||
|
} else {
|
||||||
|
console.error('❌ Update node failed:', result.errors);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function testAddConnection() {
|
||||||
|
console.log('\n=== Testing Add Connection Operation ===');
|
||||||
|
|
||||||
|
// First add a node to connect to
|
||||||
|
const workflowWithExtraNode = JSON.parse(JSON.stringify(sampleWorkflow));
|
||||||
|
workflowWithExtraNode.nodes.push({
|
||||||
|
id: 'email_1',
|
||||||
|
name: 'Send Email',
|
||||||
|
type: 'n8n-nodes-base.emailSend',
|
||||||
|
typeVersion: 2,
|
||||||
|
position: [600, 200],
|
||||||
|
parameters: {}
|
||||||
|
});
|
||||||
|
|
||||||
|
const engine = new WorkflowDiffEngine();
|
||||||
|
const request: WorkflowDiffRequest = {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
operations: [
|
||||||
|
{
|
||||||
|
type: 'addConnection',
|
||||||
|
description: 'Connect Set to Send Email',
|
||||||
|
source: 'Set',
|
||||||
|
target: 'Send Email'
|
||||||
|
}
|
||||||
|
]
|
||||||
|
};
|
||||||
|
|
||||||
|
const result = await engine.applyDiff(workflowWithExtraNode, request);
|
||||||
|
|
||||||
|
if (result.success) {
|
||||||
|
console.log('✅ Add connection successful');
|
||||||
|
const setConnections = result.workflow!.connections['Set'];
|
||||||
|
console.log(` - Connection added: ${JSON.stringify(setConnections)}`);
|
||||||
|
} else {
|
||||||
|
console.error('❌ Add connection failed:', result.errors);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function testMultipleOperations() {
|
||||||
|
console.log('\n=== Testing Multiple Operations ===');
|
||||||
|
|
||||||
|
const engine = new WorkflowDiffEngine();
|
||||||
|
const request: WorkflowDiffRequest = {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
operations: [
|
||||||
|
{
|
||||||
|
type: 'updateName',
|
||||||
|
name: 'Updated Test Workflow'
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: 'addNode',
|
||||||
|
node: {
|
||||||
|
name: 'If',
|
||||||
|
type: 'n8n-nodes-base.if',
|
||||||
|
position: [400, 400],
|
||||||
|
parameters: {}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: 'disableNode',
|
||||||
|
nodeName: 'Set'
|
||||||
|
},
|
||||||
|
{
|
||||||
|
type: 'addTag',
|
||||||
|
tag: 'updated'
|
||||||
|
}
|
||||||
|
]
|
||||||
|
};
|
||||||
|
|
||||||
|
const result = await engine.applyDiff(sampleWorkflow, request);
|
||||||
|
|
||||||
|
if (result.success) {
|
||||||
|
console.log('✅ Multiple operations successful');
|
||||||
|
console.log(` - New name: ${result.workflow!.name}`);
|
||||||
|
console.log(` - Operations applied: ${result.operationsApplied}`);
|
||||||
|
console.log(` - Node count: ${result.workflow!.nodes.length}`);
|
||||||
|
console.log(` - Tags: ${result.workflow!.tags?.join(', ')}`);
|
||||||
|
} else {
|
||||||
|
console.error('❌ Multiple operations failed:', result.errors);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function testValidationOnly() {
|
||||||
|
console.log('\n=== Testing Validation Only ===');
|
||||||
|
|
||||||
|
const engine = new WorkflowDiffEngine();
|
||||||
|
const request: WorkflowDiffRequest = {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
operations: [
|
||||||
|
{
|
||||||
|
type: 'addNode',
|
||||||
|
node: {
|
||||||
|
name: 'Webhook', // Duplicate name - should fail validation
|
||||||
|
type: 'n8n-nodes-base.webhook',
|
||||||
|
position: [600, 400]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
],
|
||||||
|
validateOnly: true
|
||||||
|
};
|
||||||
|
|
||||||
|
const result = await engine.applyDiff(sampleWorkflow, request);
|
||||||
|
|
||||||
|
console.log(` - Validation result: ${result.success ? '✅ Valid' : '❌ Invalid'}`);
|
||||||
|
if (!result.success) {
|
||||||
|
console.log(` - Error: ${result.errors![0].message}`);
|
||||||
|
} else {
|
||||||
|
console.log(` - Message: ${result.message}`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async function testInvalidOperations() {
|
||||||
|
console.log('\n=== Testing Invalid Operations ===');
|
||||||
|
|
||||||
|
const engine = new WorkflowDiffEngine();
|
||||||
|
|
||||||
|
// Test 1: Invalid node type
|
||||||
|
console.log('\n1. Testing invalid node type:');
|
||||||
|
let result = await engine.applyDiff(sampleWorkflow, {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
operations: [{
|
||||||
|
type: 'addNode',
|
||||||
|
node: {
|
||||||
|
name: 'Bad Node',
|
||||||
|
type: 'webhook', // Missing package prefix
|
||||||
|
position: [600, 400]
|
||||||
|
}
|
||||||
|
}]
|
||||||
|
});
|
||||||
|
console.log(` - Result: ${result.success ? '✅' : '❌'} ${result.errors?.[0]?.message || 'Success'}`);
|
||||||
|
|
||||||
|
// Test 2: Remove non-existent node
|
||||||
|
console.log('\n2. Testing remove non-existent node:');
|
||||||
|
result = await engine.applyDiff(sampleWorkflow, {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
operations: [{
|
||||||
|
type: 'removeNode',
|
||||||
|
nodeName: 'Non Existent Node'
|
||||||
|
}]
|
||||||
|
});
|
||||||
|
console.log(` - Result: ${result.success ? '✅' : '❌'} ${result.errors?.[0]?.message || 'Success'}`);
|
||||||
|
|
||||||
|
// Test 3: Invalid connection
|
||||||
|
console.log('\n3. Testing invalid connection:');
|
||||||
|
result = await engine.applyDiff(sampleWorkflow, {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
operations: [{
|
||||||
|
type: 'addConnection',
|
||||||
|
source: 'Webhook',
|
||||||
|
target: 'Non Existent Node'
|
||||||
|
}]
|
||||||
|
});
|
||||||
|
console.log(` - Result: ${result.success ? '✅' : '❌'} ${result.errors?.[0]?.message || 'Success'}`);
|
||||||
|
}
|
||||||
|
|
||||||
|
async function testNodeReferenceByIdAndName() {
|
||||||
|
console.log('\n=== Testing Node Reference by ID and Name ===');
|
||||||
|
|
||||||
|
const engine = new WorkflowDiffEngine();
|
||||||
|
|
||||||
|
// Test update by ID
|
||||||
|
console.log('\n1. Update node by ID:');
|
||||||
|
let result = await engine.applyDiff(sampleWorkflow, {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
operations: [{
|
||||||
|
type: 'updateNode',
|
||||||
|
nodeId: 'webhook_1',
|
||||||
|
changes: {
|
||||||
|
'parameters.path': 'updated-by-id'
|
||||||
|
}
|
||||||
|
}]
|
||||||
|
});
|
||||||
|
|
||||||
|
if (result.success) {
|
||||||
|
const node = result.workflow!.nodes.find((n: any) => n.id === 'webhook_1');
|
||||||
|
console.log(` - ✅ Success: path = ${node!.parameters.path}`);
|
||||||
|
} else {
|
||||||
|
console.log(` - ❌ Failed: ${result.errors![0].message}`);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Test update by name
|
||||||
|
console.log('\n2. Update node by name:');
|
||||||
|
result = await engine.applyDiff(sampleWorkflow, {
|
||||||
|
id: 'test-workflow-123',
|
||||||
|
operations: [{
|
||||||
|
type: 'updateNode',
|
||||||
|
nodeName: 'Webhook',
|
||||||
|
changes: {
|
||||||
|
'parameters.path': 'updated-by-name'
|
||||||
|
}
|
||||||
|
}]
|
||||||
|
});
|
||||||
|
|
||||||
|
if (result.success) {
|
||||||
|
const node = result.workflow!.nodes.find((n: any) => n.name === 'Webhook');
|
||||||
|
console.log(` - ✅ Success: path = ${node!.parameters.path}`);
|
||||||
|
} else {
|
||||||
|
console.log(` - ❌ Failed: ${result.errors![0].message}`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Run all tests
|
||||||
|
async function runTests() {
|
||||||
|
try {
|
||||||
|
console.log('🧪 Running Workflow Diff Engine Tests...\n');
|
||||||
|
|
||||||
|
await testAddNode();
|
||||||
|
await testRemoveNode();
|
||||||
|
await testUpdateNode();
|
||||||
|
await testAddConnection();
|
||||||
|
await testMultipleOperations();
|
||||||
|
await testValidationOnly();
|
||||||
|
await testInvalidOperations();
|
||||||
|
await testNodeReferenceByIdAndName();
|
||||||
|
|
||||||
|
console.log('\n✅ All tests completed!');
|
||||||
|
} catch (error) {
|
||||||
|
console.error('\n❌ Test failed with error:', error);
|
||||||
|
process.exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Run tests if this is the main module
|
||||||
|
if (require.main === module) {
|
||||||
|
runTests();
|
||||||
|
}
|
||||||
@@ -105,6 +105,13 @@ export function cleanWorkflowForUpdate(workflow: Workflow): Partial<Workflow> {
|
|||||||
// Remove fields that cause API errors
|
// Remove fields that cause API errors
|
||||||
pinData,
|
pinData,
|
||||||
tags,
|
tags,
|
||||||
|
// Remove additional fields that n8n API doesn't accept
|
||||||
|
isArchived,
|
||||||
|
usedCredentials,
|
||||||
|
sharedWithProjects,
|
||||||
|
triggerCount,
|
||||||
|
shared,
|
||||||
|
active,
|
||||||
// Keep everything else
|
// Keep everything else
|
||||||
...cleanedWorkflow
|
...cleanedWorkflow
|
||||||
} = workflow as any;
|
} = workflow as any;
|
||||||
|
|||||||
627
src/services/workflow-diff-engine.ts
Normal file
627
src/services/workflow-diff-engine.ts
Normal file
@@ -0,0 +1,627 @@
|
|||||||
|
/**
|
||||||
|
* Workflow Diff Engine
|
||||||
|
* Applies diff operations to n8n workflows
|
||||||
|
*/
|
||||||
|
|
||||||
|
import { v4 as uuidv4 } from 'uuid';
|
||||||
|
import {
|
||||||
|
WorkflowDiffOperation,
|
||||||
|
WorkflowDiffRequest,
|
||||||
|
WorkflowDiffResult,
|
||||||
|
WorkflowDiffValidationError,
|
||||||
|
isNodeOperation,
|
||||||
|
isConnectionOperation,
|
||||||
|
isMetadataOperation,
|
||||||
|
AddNodeOperation,
|
||||||
|
RemoveNodeOperation,
|
||||||
|
UpdateNodeOperation,
|
||||||
|
MoveNodeOperation,
|
||||||
|
EnableNodeOperation,
|
||||||
|
DisableNodeOperation,
|
||||||
|
AddConnectionOperation,
|
||||||
|
RemoveConnectionOperation,
|
||||||
|
UpdateConnectionOperation,
|
||||||
|
UpdateSettingsOperation,
|
||||||
|
UpdateNameOperation,
|
||||||
|
AddTagOperation,
|
||||||
|
RemoveTagOperation
|
||||||
|
} from '../types/workflow-diff';
|
||||||
|
import { Workflow, WorkflowNode, WorkflowConnection } from '../types/n8n-api';
|
||||||
|
import { Logger } from '../utils/logger';
|
||||||
|
import { validateWorkflowNode, validateWorkflowConnections } from './n8n-validation';
|
||||||
|
|
||||||
|
const logger = new Logger({ prefix: '[WorkflowDiffEngine]' });
|
||||||
|
|
||||||
|
export class WorkflowDiffEngine {
|
||||||
|
/**
|
||||||
|
* Apply diff operations to a workflow
|
||||||
|
*/
|
||||||
|
async applyDiff(
|
||||||
|
workflow: Workflow,
|
||||||
|
request: WorkflowDiffRequest
|
||||||
|
): Promise<WorkflowDiffResult> {
|
||||||
|
try {
|
||||||
|
// Limit operations to keep complexity manageable
|
||||||
|
if (request.operations.length > 5) {
|
||||||
|
return {
|
||||||
|
success: false,
|
||||||
|
errors: [{
|
||||||
|
operation: -1,
|
||||||
|
message: 'Too many operations. Maximum 5 operations allowed per request to ensure transactional integrity.'
|
||||||
|
}]
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
// Clone workflow to avoid modifying original
|
||||||
|
const workflowCopy = JSON.parse(JSON.stringify(workflow));
|
||||||
|
|
||||||
|
// Group operations by type for two-pass processing
|
||||||
|
const nodeOperationTypes = ['addNode', 'removeNode', 'updateNode', 'moveNode', 'enableNode', 'disableNode'];
|
||||||
|
const nodeOperations: Array<{ operation: WorkflowDiffOperation; index: number }> = [];
|
||||||
|
const otherOperations: Array<{ operation: WorkflowDiffOperation; index: number }> = [];
|
||||||
|
|
||||||
|
request.operations.forEach((operation, index) => {
|
||||||
|
if (nodeOperationTypes.includes(operation.type)) {
|
||||||
|
nodeOperations.push({ operation, index });
|
||||||
|
} else {
|
||||||
|
otherOperations.push({ operation, index });
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
// Pass 1: Validate and apply node operations first
|
||||||
|
for (const { operation, index } of nodeOperations) {
|
||||||
|
const error = this.validateOperation(workflowCopy, operation);
|
||||||
|
if (error) {
|
||||||
|
return {
|
||||||
|
success: false,
|
||||||
|
errors: [{
|
||||||
|
operation: index,
|
||||||
|
message: error,
|
||||||
|
details: operation
|
||||||
|
}]
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
// Always apply to working copy for proper validation of subsequent operations
|
||||||
|
try {
|
||||||
|
this.applyOperation(workflowCopy, operation);
|
||||||
|
} catch (error) {
|
||||||
|
return {
|
||||||
|
success: false,
|
||||||
|
errors: [{
|
||||||
|
operation: index,
|
||||||
|
message: `Failed to apply operation: ${error instanceof Error ? error.message : 'Unknown error'}`,
|
||||||
|
details: operation
|
||||||
|
}]
|
||||||
|
};
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Pass 2: Validate and apply other operations (connections, metadata)
|
||||||
|
for (const { operation, index } of otherOperations) {
|
||||||
|
const error = this.validateOperation(workflowCopy, operation);
|
||||||
|
if (error) {
|
||||||
|
return {
|
||||||
|
success: false,
|
||||||
|
errors: [{
|
||||||
|
operation: index,
|
||||||
|
message: error,
|
||||||
|
details: operation
|
||||||
|
}]
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
// Always apply to working copy for proper validation of subsequent operations
|
||||||
|
try {
|
||||||
|
this.applyOperation(workflowCopy, operation);
|
||||||
|
} catch (error) {
|
||||||
|
return {
|
||||||
|
success: false,
|
||||||
|
errors: [{
|
||||||
|
operation: index,
|
||||||
|
message: `Failed to apply operation: ${error instanceof Error ? error.message : 'Unknown error'}`,
|
||||||
|
details: operation
|
||||||
|
}]
|
||||||
|
};
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// If validateOnly flag is set, return success without applying
|
||||||
|
if (request.validateOnly) {
|
||||||
|
return {
|
||||||
|
success: true,
|
||||||
|
message: 'Validation successful. Operations are valid but not applied.'
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
const operationsApplied = request.operations.length;
|
||||||
|
return {
|
||||||
|
success: true,
|
||||||
|
workflow: workflowCopy,
|
||||||
|
operationsApplied,
|
||||||
|
message: `Successfully applied ${operationsApplied} operations (${nodeOperations.length} node ops, ${otherOperations.length} other ops)`
|
||||||
|
};
|
||||||
|
} catch (error) {
|
||||||
|
logger.error('Failed to apply diff', error);
|
||||||
|
return {
|
||||||
|
success: false,
|
||||||
|
errors: [{
|
||||||
|
operation: -1,
|
||||||
|
message: `Diff engine error: ${error instanceof Error ? error.message : 'Unknown error'}`
|
||||||
|
}]
|
||||||
|
};
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Validate a single operation
|
||||||
|
*/
|
||||||
|
private validateOperation(workflow: Workflow, operation: WorkflowDiffOperation): string | null {
|
||||||
|
switch (operation.type) {
|
||||||
|
case 'addNode':
|
||||||
|
return this.validateAddNode(workflow, operation);
|
||||||
|
case 'removeNode':
|
||||||
|
return this.validateRemoveNode(workflow, operation);
|
||||||
|
case 'updateNode':
|
||||||
|
return this.validateUpdateNode(workflow, operation);
|
||||||
|
case 'moveNode':
|
||||||
|
return this.validateMoveNode(workflow, operation);
|
||||||
|
case 'enableNode':
|
||||||
|
case 'disableNode':
|
||||||
|
return this.validateToggleNode(workflow, operation);
|
||||||
|
case 'addConnection':
|
||||||
|
return this.validateAddConnection(workflow, operation);
|
||||||
|
case 'removeConnection':
|
||||||
|
return this.validateRemoveConnection(workflow, operation);
|
||||||
|
case 'updateConnection':
|
||||||
|
return this.validateUpdateConnection(workflow, operation);
|
||||||
|
case 'updateSettings':
|
||||||
|
case 'updateName':
|
||||||
|
case 'addTag':
|
||||||
|
case 'removeTag':
|
||||||
|
return null; // These are always valid
|
||||||
|
default:
|
||||||
|
return `Unknown operation type: ${(operation as any).type}`;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Apply a single operation to the workflow
|
||||||
|
*/
|
||||||
|
private applyOperation(workflow: Workflow, operation: WorkflowDiffOperation): void {
|
||||||
|
switch (operation.type) {
|
||||||
|
case 'addNode':
|
||||||
|
this.applyAddNode(workflow, operation);
|
||||||
|
break;
|
||||||
|
case 'removeNode':
|
||||||
|
this.applyRemoveNode(workflow, operation);
|
||||||
|
break;
|
||||||
|
case 'updateNode':
|
||||||
|
this.applyUpdateNode(workflow, operation);
|
||||||
|
break;
|
||||||
|
case 'moveNode':
|
||||||
|
this.applyMoveNode(workflow, operation);
|
||||||
|
break;
|
||||||
|
case 'enableNode':
|
||||||
|
this.applyEnableNode(workflow, operation);
|
||||||
|
break;
|
||||||
|
case 'disableNode':
|
||||||
|
this.applyDisableNode(workflow, operation);
|
||||||
|
break;
|
||||||
|
case 'addConnection':
|
||||||
|
this.applyAddConnection(workflow, operation);
|
||||||
|
break;
|
||||||
|
case 'removeConnection':
|
||||||
|
this.applyRemoveConnection(workflow, operation);
|
||||||
|
break;
|
||||||
|
case 'updateConnection':
|
||||||
|
this.applyUpdateConnection(workflow, operation);
|
||||||
|
break;
|
||||||
|
case 'updateSettings':
|
||||||
|
this.applyUpdateSettings(workflow, operation);
|
||||||
|
break;
|
||||||
|
case 'updateName':
|
||||||
|
this.applyUpdateName(workflow, operation);
|
||||||
|
break;
|
||||||
|
case 'addTag':
|
||||||
|
this.applyAddTag(workflow, operation);
|
||||||
|
break;
|
||||||
|
case 'removeTag':
|
||||||
|
this.applyRemoveTag(workflow, operation);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Node operation validators
|
||||||
|
private validateAddNode(workflow: Workflow, operation: AddNodeOperation): string | null {
|
||||||
|
const { node } = operation;
|
||||||
|
|
||||||
|
// Check if node with same name already exists
|
||||||
|
if (workflow.nodes.some(n => n.name === node.name)) {
|
||||||
|
return `Node with name "${node.name}" already exists`;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Validate node type format
|
||||||
|
if (!node.type.includes('.')) {
|
||||||
|
return `Invalid node type "${node.type}". Must include package prefix (e.g., "n8n-nodes-base.webhook")`;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (node.type.startsWith('nodes-base.')) {
|
||||||
|
return `Invalid node type "${node.type}". Use "n8n-nodes-base.${node.type.substring(11)}" instead`;
|
||||||
|
}
|
||||||
|
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
private validateRemoveNode(workflow: Workflow, operation: RemoveNodeOperation): string | null {
|
||||||
|
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
|
||||||
|
if (!node) {
|
||||||
|
return `Node not found: ${operation.nodeId || operation.nodeName}`;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check if node has connections that would be broken
|
||||||
|
const hasConnections = Object.values(workflow.connections).some(conn => {
|
||||||
|
return Object.values(conn).some(outputs =>
|
||||||
|
outputs.some(connections =>
|
||||||
|
connections.some(c => c.node === node.name)
|
||||||
|
)
|
||||||
|
);
|
||||||
|
});
|
||||||
|
|
||||||
|
if (hasConnections || workflow.connections[node.name]) {
|
||||||
|
// This is a warning, not an error - connections will be cleaned up
|
||||||
|
logger.warn(`Removing node "${node.name}" will break existing connections`);
|
||||||
|
}
|
||||||
|
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
private validateUpdateNode(workflow: Workflow, operation: UpdateNodeOperation): string | null {
|
||||||
|
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
|
||||||
|
if (!node) {
|
||||||
|
return `Node not found: ${operation.nodeId || operation.nodeName}`;
|
||||||
|
}
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
private validateMoveNode(workflow: Workflow, operation: MoveNodeOperation): string | null {
|
||||||
|
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
|
||||||
|
if (!node) {
|
||||||
|
return `Node not found: ${operation.nodeId || operation.nodeName}`;
|
||||||
|
}
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
private validateToggleNode(workflow: Workflow, operation: EnableNodeOperation | DisableNodeOperation): string | null {
|
||||||
|
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
|
||||||
|
if (!node) {
|
||||||
|
return `Node not found: ${operation.nodeId || operation.nodeName}`;
|
||||||
|
}
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Connection operation validators
|
||||||
|
private validateAddConnection(workflow: Workflow, operation: AddConnectionOperation): string | null {
|
||||||
|
const sourceNode = this.findNode(workflow, operation.source, operation.source);
|
||||||
|
const targetNode = this.findNode(workflow, operation.target, operation.target);
|
||||||
|
|
||||||
|
if (!sourceNode) {
|
||||||
|
return `Source node not found: ${operation.source}`;
|
||||||
|
}
|
||||||
|
if (!targetNode) {
|
||||||
|
return `Target node not found: ${operation.target}`;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check if connection already exists
|
||||||
|
const sourceOutput = operation.sourceOutput || 'main';
|
||||||
|
const existing = workflow.connections[sourceNode.name]?.[sourceOutput];
|
||||||
|
if (existing) {
|
||||||
|
const hasConnection = existing.some(connections =>
|
||||||
|
connections.some(c => c.node === targetNode.name)
|
||||||
|
);
|
||||||
|
if (hasConnection) {
|
||||||
|
return `Connection already exists from "${sourceNode.name}" to "${targetNode.name}"`;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
private validateRemoveConnection(workflow: Workflow, operation: RemoveConnectionOperation): string | null {
|
||||||
|
const sourceNode = this.findNode(workflow, operation.source, operation.source);
|
||||||
|
const targetNode = this.findNode(workflow, operation.target, operation.target);
|
||||||
|
|
||||||
|
if (!sourceNode) {
|
||||||
|
return `Source node not found: ${operation.source}`;
|
||||||
|
}
|
||||||
|
if (!targetNode) {
|
||||||
|
return `Target node not found: ${operation.target}`;
|
||||||
|
}
|
||||||
|
|
||||||
|
const sourceOutput = operation.sourceOutput || 'main';
|
||||||
|
const connections = workflow.connections[sourceNode.name]?.[sourceOutput];
|
||||||
|
if (!connections) {
|
||||||
|
return `No connections found from "${sourceNode.name}"`;
|
||||||
|
}
|
||||||
|
|
||||||
|
const hasConnection = connections.some(conns =>
|
||||||
|
conns.some(c => c.node === targetNode.name)
|
||||||
|
);
|
||||||
|
|
||||||
|
if (!hasConnection) {
|
||||||
|
return `No connection exists from "${sourceNode.name}" to "${targetNode.name}"`;
|
||||||
|
}
|
||||||
|
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
private validateUpdateConnection(workflow: Workflow, operation: UpdateConnectionOperation): string | null {
|
||||||
|
const sourceNode = this.findNode(workflow, operation.source, operation.source);
|
||||||
|
const targetNode = this.findNode(workflow, operation.target, operation.target);
|
||||||
|
|
||||||
|
if (!sourceNode) {
|
||||||
|
return `Source node not found: ${operation.source}`;
|
||||||
|
}
|
||||||
|
if (!targetNode) {
|
||||||
|
return `Target node not found: ${operation.target}`;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check if connection exists to update
|
||||||
|
const existingConnections = workflow.connections[sourceNode.name];
|
||||||
|
if (!existingConnections) {
|
||||||
|
return `No connections found from "${sourceNode.name}"`;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Check if any connection to target exists
|
||||||
|
let hasConnection = false;
|
||||||
|
Object.values(existingConnections).forEach(outputs => {
|
||||||
|
outputs.forEach(connections => {
|
||||||
|
if (connections.some(c => c.node === targetNode.name)) {
|
||||||
|
hasConnection = true;
|
||||||
|
}
|
||||||
|
});
|
||||||
|
});
|
||||||
|
|
||||||
|
if (!hasConnection) {
|
||||||
|
return `No connection exists from "${sourceNode.name}" to "${targetNode.name}"`;
|
||||||
|
}
|
||||||
|
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Node operation appliers
|
||||||
|
private applyAddNode(workflow: Workflow, operation: AddNodeOperation): void {
|
||||||
|
const newNode: WorkflowNode = {
|
||||||
|
id: operation.node.id || uuidv4(),
|
||||||
|
name: operation.node.name,
|
||||||
|
type: operation.node.type,
|
||||||
|
typeVersion: operation.node.typeVersion || 1,
|
||||||
|
position: operation.node.position,
|
||||||
|
parameters: operation.node.parameters || {},
|
||||||
|
credentials: operation.node.credentials,
|
||||||
|
disabled: operation.node.disabled,
|
||||||
|
notes: operation.node.notes,
|
||||||
|
notesInFlow: operation.node.notesInFlow,
|
||||||
|
continueOnFail: operation.node.continueOnFail,
|
||||||
|
retryOnFail: operation.node.retryOnFail,
|
||||||
|
maxTries: operation.node.maxTries,
|
||||||
|
waitBetweenTries: operation.node.waitBetweenTries,
|
||||||
|
alwaysOutputData: operation.node.alwaysOutputData,
|
||||||
|
executeOnce: operation.node.executeOnce
|
||||||
|
};
|
||||||
|
|
||||||
|
workflow.nodes.push(newNode);
|
||||||
|
}
|
||||||
|
|
||||||
|
private applyRemoveNode(workflow: Workflow, operation: RemoveNodeOperation): void {
|
||||||
|
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
|
||||||
|
if (!node) return;
|
||||||
|
|
||||||
|
// Remove node from array
|
||||||
|
const index = workflow.nodes.findIndex(n => n.id === node.id);
|
||||||
|
if (index !== -1) {
|
||||||
|
workflow.nodes.splice(index, 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Remove all connections from this node
|
||||||
|
delete workflow.connections[node.name];
|
||||||
|
|
||||||
|
// Remove all connections to this node
|
||||||
|
Object.keys(workflow.connections).forEach(sourceName => {
|
||||||
|
const sourceConnections = workflow.connections[sourceName];
|
||||||
|
Object.keys(sourceConnections).forEach(outputName => {
|
||||||
|
sourceConnections[outputName] = sourceConnections[outputName].map(connections =>
|
||||||
|
connections.filter(conn => conn.node !== node.name)
|
||||||
|
).filter(connections => connections.length > 0);
|
||||||
|
|
||||||
|
// Clean up empty arrays
|
||||||
|
if (sourceConnections[outputName].length === 0) {
|
||||||
|
delete sourceConnections[outputName];
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
// Clean up empty connection objects
|
||||||
|
if (Object.keys(sourceConnections).length === 0) {
|
||||||
|
delete workflow.connections[sourceName];
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
private applyUpdateNode(workflow: Workflow, operation: UpdateNodeOperation): void {
|
||||||
|
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
|
||||||
|
if (!node) return;
|
||||||
|
|
||||||
|
// Apply changes using dot notation
|
||||||
|
Object.entries(operation.changes).forEach(([path, value]) => {
|
||||||
|
this.setNestedProperty(node, path, value);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
private applyMoveNode(workflow: Workflow, operation: MoveNodeOperation): void {
|
||||||
|
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
|
||||||
|
if (!node) return;
|
||||||
|
|
||||||
|
node.position = operation.position;
|
||||||
|
}
|
||||||
|
|
||||||
|
private applyEnableNode(workflow: Workflow, operation: EnableNodeOperation): void {
|
||||||
|
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
|
||||||
|
if (!node) return;
|
||||||
|
|
||||||
|
node.disabled = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
private applyDisableNode(workflow: Workflow, operation: DisableNodeOperation): void {
|
||||||
|
const node = this.findNode(workflow, operation.nodeId, operation.nodeName);
|
||||||
|
if (!node) return;
|
||||||
|
|
||||||
|
node.disabled = true;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Connection operation appliers
|
||||||
|
private applyAddConnection(workflow: Workflow, operation: AddConnectionOperation): void {
|
||||||
|
const sourceNode = this.findNode(workflow, operation.source, operation.source);
|
||||||
|
const targetNode = this.findNode(workflow, operation.target, operation.target);
|
||||||
|
if (!sourceNode || !targetNode) return;
|
||||||
|
|
||||||
|
const sourceOutput = operation.sourceOutput || 'main';
|
||||||
|
const targetInput = operation.targetInput || 'main';
|
||||||
|
const sourceIndex = operation.sourceIndex || 0;
|
||||||
|
const targetIndex = operation.targetIndex || 0;
|
||||||
|
|
||||||
|
// Initialize connections structure if needed
|
||||||
|
if (!workflow.connections[sourceNode.name]) {
|
||||||
|
workflow.connections[sourceNode.name] = {};
|
||||||
|
}
|
||||||
|
if (!workflow.connections[sourceNode.name][sourceOutput]) {
|
||||||
|
workflow.connections[sourceNode.name][sourceOutput] = [];
|
||||||
|
}
|
||||||
|
|
||||||
|
// Ensure we have array at the source index
|
||||||
|
while (workflow.connections[sourceNode.name][sourceOutput].length <= sourceIndex) {
|
||||||
|
workflow.connections[sourceNode.name][sourceOutput].push([]);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Add connection
|
||||||
|
workflow.connections[sourceNode.name][sourceOutput][sourceIndex].push({
|
||||||
|
node: targetNode.name,
|
||||||
|
type: targetInput,
|
||||||
|
index: targetIndex
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
private applyRemoveConnection(workflow: Workflow, operation: RemoveConnectionOperation): void {
|
||||||
|
const sourceNode = this.findNode(workflow, operation.source, operation.source);
|
||||||
|
const targetNode = this.findNode(workflow, operation.target, operation.target);
|
||||||
|
if (!sourceNode || !targetNode) return;
|
||||||
|
|
||||||
|
const sourceOutput = operation.sourceOutput || 'main';
|
||||||
|
const connections = workflow.connections[sourceNode.name]?.[sourceOutput];
|
||||||
|
if (!connections) return;
|
||||||
|
|
||||||
|
// Remove connection from all indices
|
||||||
|
workflow.connections[sourceNode.name][sourceOutput] = connections.map(conns =>
|
||||||
|
conns.filter(conn => conn.node !== targetNode.name)
|
||||||
|
);
|
||||||
|
|
||||||
|
// Clean up empty arrays
|
||||||
|
workflow.connections[sourceNode.name][sourceOutput] =
|
||||||
|
workflow.connections[sourceNode.name][sourceOutput].filter(conns => conns.length > 0);
|
||||||
|
|
||||||
|
if (workflow.connections[sourceNode.name][sourceOutput].length === 0) {
|
||||||
|
delete workflow.connections[sourceNode.name][sourceOutput];
|
||||||
|
}
|
||||||
|
|
||||||
|
if (Object.keys(workflow.connections[sourceNode.name]).length === 0) {
|
||||||
|
delete workflow.connections[sourceNode.name];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private applyUpdateConnection(workflow: Workflow, operation: UpdateConnectionOperation): void {
|
||||||
|
// For now, implement as remove + add
|
||||||
|
this.applyRemoveConnection(workflow, {
|
||||||
|
type: 'removeConnection',
|
||||||
|
source: operation.source,
|
||||||
|
target: operation.target,
|
||||||
|
sourceOutput: operation.changes.sourceOutput,
|
||||||
|
targetInput: operation.changes.targetInput
|
||||||
|
});
|
||||||
|
|
||||||
|
this.applyAddConnection(workflow, {
|
||||||
|
type: 'addConnection',
|
||||||
|
source: operation.source,
|
||||||
|
target: operation.target,
|
||||||
|
sourceOutput: operation.changes.sourceOutput,
|
||||||
|
targetInput: operation.changes.targetInput,
|
||||||
|
sourceIndex: operation.changes.sourceIndex,
|
||||||
|
targetIndex: operation.changes.targetIndex
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
// Metadata operation appliers
|
||||||
|
private applyUpdateSettings(workflow: Workflow, operation: UpdateSettingsOperation): void {
|
||||||
|
if (!workflow.settings) {
|
||||||
|
workflow.settings = {};
|
||||||
|
}
|
||||||
|
Object.assign(workflow.settings, operation.settings);
|
||||||
|
}
|
||||||
|
|
||||||
|
private applyUpdateName(workflow: Workflow, operation: UpdateNameOperation): void {
|
||||||
|
workflow.name = operation.name;
|
||||||
|
}
|
||||||
|
|
||||||
|
private applyAddTag(workflow: Workflow, operation: AddTagOperation): void {
|
||||||
|
if (!workflow.tags) {
|
||||||
|
workflow.tags = [];
|
||||||
|
}
|
||||||
|
if (!workflow.tags.includes(operation.tag)) {
|
||||||
|
workflow.tags.push(operation.tag);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private applyRemoveTag(workflow: Workflow, operation: RemoveTagOperation): void {
|
||||||
|
if (!workflow.tags) return;
|
||||||
|
|
||||||
|
const index = workflow.tags.indexOf(operation.tag);
|
||||||
|
if (index !== -1) {
|
||||||
|
workflow.tags.splice(index, 1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Helper methods
|
||||||
|
private findNode(workflow: Workflow, nodeId?: string, nodeName?: string): WorkflowNode | null {
|
||||||
|
if (nodeId) {
|
||||||
|
const nodeById = workflow.nodes.find(n => n.id === nodeId);
|
||||||
|
if (nodeById) return nodeById;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (nodeName) {
|
||||||
|
const nodeByName = workflow.nodes.find(n => n.name === nodeName);
|
||||||
|
if (nodeByName) return nodeByName;
|
||||||
|
}
|
||||||
|
|
||||||
|
// If nodeId is provided but not found, try treating it as a name
|
||||||
|
if (nodeId && !nodeName) {
|
||||||
|
const nodeByName = workflow.nodes.find(n => n.name === nodeId);
|
||||||
|
if (nodeByName) return nodeByName;
|
||||||
|
}
|
||||||
|
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
private setNestedProperty(obj: any, path: string, value: any): void {
|
||||||
|
const keys = path.split('.');
|
||||||
|
let current = obj;
|
||||||
|
|
||||||
|
for (let i = 0; i < keys.length - 1; i++) {
|
||||||
|
const key = keys[i];
|
||||||
|
if (!(key in current) || typeof current[key] !== 'object') {
|
||||||
|
current[key] = {};
|
||||||
|
}
|
||||||
|
current = current[key];
|
||||||
|
}
|
||||||
|
|
||||||
|
current[keys[keys.length - 1]] = value;
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -16,6 +16,7 @@ export interface ToolDefinition {
|
|||||||
type: string;
|
type: string;
|
||||||
properties: Record<string, any>;
|
properties: Record<string, any>;
|
||||||
required?: string[];
|
required?: string[];
|
||||||
|
additionalProperties?: boolean | Record<string, any>;
|
||||||
};
|
};
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
@@ -23,7 +23,7 @@ export interface WorkflowNode {
|
|||||||
|
|
||||||
export interface WorkflowConnection {
|
export interface WorkflowConnection {
|
||||||
[sourceNodeId: string]: {
|
[sourceNodeId: string]: {
|
||||||
main: Array<Array<{
|
[outputType: string]: Array<Array<{
|
||||||
node: string;
|
node: string;
|
||||||
type: string;
|
type: string;
|
||||||
index: number;
|
index: number;
|
||||||
|
|||||||
171
src/types/workflow-diff.ts
Normal file
171
src/types/workflow-diff.ts
Normal file
@@ -0,0 +1,171 @@
|
|||||||
|
/**
|
||||||
|
* Workflow Diff Types
|
||||||
|
* Defines the structure for partial workflow updates using diff operations
|
||||||
|
*/
|
||||||
|
|
||||||
|
import { WorkflowNode, WorkflowConnection } from './n8n-api';
|
||||||
|
|
||||||
|
// Base operation interface
|
||||||
|
export interface DiffOperation {
|
||||||
|
type: string;
|
||||||
|
description?: string; // Optional description for clarity
|
||||||
|
}
|
||||||
|
|
||||||
|
// Node Operations
|
||||||
|
export interface AddNodeOperation extends DiffOperation {
|
||||||
|
type: 'addNode';
|
||||||
|
node: Partial<WorkflowNode> & {
|
||||||
|
name: string; // Name is required
|
||||||
|
type: string; // Type is required
|
||||||
|
position: [number, number]; // Position is required
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
export interface RemoveNodeOperation extends DiffOperation {
|
||||||
|
type: 'removeNode';
|
||||||
|
nodeId?: string; // Can use either ID or name
|
||||||
|
nodeName?: string;
|
||||||
|
}
|
||||||
|
|
||||||
|
export interface UpdateNodeOperation extends DiffOperation {
|
||||||
|
type: 'updateNode';
|
||||||
|
nodeId?: string; // Can use either ID or name
|
||||||
|
nodeName?: string;
|
||||||
|
changes: {
|
||||||
|
[path: string]: any; // Dot notation paths like 'parameters.url'
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
export interface MoveNodeOperation extends DiffOperation {
|
||||||
|
type: 'moveNode';
|
||||||
|
nodeId?: string;
|
||||||
|
nodeName?: string;
|
||||||
|
position: [number, number];
|
||||||
|
}
|
||||||
|
|
||||||
|
export interface EnableNodeOperation extends DiffOperation {
|
||||||
|
type: 'enableNode';
|
||||||
|
nodeId?: string;
|
||||||
|
nodeName?: string;
|
||||||
|
}
|
||||||
|
|
||||||
|
export interface DisableNodeOperation extends DiffOperation {
|
||||||
|
type: 'disableNode';
|
||||||
|
nodeId?: string;
|
||||||
|
nodeName?: string;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Connection Operations
|
||||||
|
export interface AddConnectionOperation extends DiffOperation {
|
||||||
|
type: 'addConnection';
|
||||||
|
source: string; // Node name or ID
|
||||||
|
target: string; // Node name or ID
|
||||||
|
sourceOutput?: string; // Default: 'main'
|
||||||
|
targetInput?: string; // Default: 'main'
|
||||||
|
sourceIndex?: number; // Default: 0
|
||||||
|
targetIndex?: number; // Default: 0
|
||||||
|
}
|
||||||
|
|
||||||
|
export interface RemoveConnectionOperation extends DiffOperation {
|
||||||
|
type: 'removeConnection';
|
||||||
|
source: string; // Node name or ID
|
||||||
|
target: string; // Node name or ID
|
||||||
|
sourceOutput?: string; // Default: 'main'
|
||||||
|
targetInput?: string; // Default: 'main'
|
||||||
|
}
|
||||||
|
|
||||||
|
export interface UpdateConnectionOperation extends DiffOperation {
|
||||||
|
type: 'updateConnection';
|
||||||
|
source: string;
|
||||||
|
target: string;
|
||||||
|
changes: {
|
||||||
|
sourceOutput?: string;
|
||||||
|
targetInput?: string;
|
||||||
|
sourceIndex?: number;
|
||||||
|
targetIndex?: number;
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
// Workflow Metadata Operations
|
||||||
|
export interface UpdateSettingsOperation extends DiffOperation {
|
||||||
|
type: 'updateSettings';
|
||||||
|
settings: {
|
||||||
|
[key: string]: any;
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
export interface UpdateNameOperation extends DiffOperation {
|
||||||
|
type: 'updateName';
|
||||||
|
name: string;
|
||||||
|
}
|
||||||
|
|
||||||
|
export interface AddTagOperation extends DiffOperation {
|
||||||
|
type: 'addTag';
|
||||||
|
tag: string;
|
||||||
|
}
|
||||||
|
|
||||||
|
export interface RemoveTagOperation extends DiffOperation {
|
||||||
|
type: 'removeTag';
|
||||||
|
tag: string;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Union type for all operations
|
||||||
|
export type WorkflowDiffOperation =
|
||||||
|
| AddNodeOperation
|
||||||
|
| RemoveNodeOperation
|
||||||
|
| UpdateNodeOperation
|
||||||
|
| MoveNodeOperation
|
||||||
|
| EnableNodeOperation
|
||||||
|
| DisableNodeOperation
|
||||||
|
| AddConnectionOperation
|
||||||
|
| RemoveConnectionOperation
|
||||||
|
| UpdateConnectionOperation
|
||||||
|
| UpdateSettingsOperation
|
||||||
|
| UpdateNameOperation
|
||||||
|
| AddTagOperation
|
||||||
|
| RemoveTagOperation;
|
||||||
|
|
||||||
|
// Main diff request structure
|
||||||
|
export interface WorkflowDiffRequest {
|
||||||
|
id: string; // Workflow ID
|
||||||
|
operations: WorkflowDiffOperation[];
|
||||||
|
validateOnly?: boolean; // If true, only validate without applying
|
||||||
|
}
|
||||||
|
|
||||||
|
// Response types
|
||||||
|
export interface WorkflowDiffValidationError {
|
||||||
|
operation: number; // Index of the operation that failed
|
||||||
|
message: string;
|
||||||
|
details?: any;
|
||||||
|
}
|
||||||
|
|
||||||
|
export interface WorkflowDiffResult {
|
||||||
|
success: boolean;
|
||||||
|
workflow?: any; // Updated workflow if successful
|
||||||
|
errors?: WorkflowDiffValidationError[];
|
||||||
|
operationsApplied?: number;
|
||||||
|
message?: string;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Helper type for node reference (supports both ID and name)
|
||||||
|
export interface NodeReference {
|
||||||
|
id?: string;
|
||||||
|
name?: string;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Utility functions type guards
|
||||||
|
export function isNodeOperation(op: WorkflowDiffOperation): op is
|
||||||
|
AddNodeOperation | RemoveNodeOperation | UpdateNodeOperation |
|
||||||
|
MoveNodeOperation | EnableNodeOperation | DisableNodeOperation {
|
||||||
|
return ['addNode', 'removeNode', 'updateNode', 'moveNode', 'enableNode', 'disableNode'].includes(op.type);
|
||||||
|
}
|
||||||
|
|
||||||
|
export function isConnectionOperation(op: WorkflowDiffOperation): op is
|
||||||
|
AddConnectionOperation | RemoveConnectionOperation | UpdateConnectionOperation {
|
||||||
|
return ['addConnection', 'removeConnection', 'updateConnection'].includes(op.type);
|
||||||
|
}
|
||||||
|
|
||||||
|
export function isMetadataOperation(op: WorkflowDiffOperation): op is
|
||||||
|
UpdateSettingsOperation | UpdateNameOperation | AddTagOperation | RemoveTagOperation {
|
||||||
|
return ['updateSettings', 'updateName', 'addTag', 'removeTag'].includes(op.type);
|
||||||
|
}
|
||||||
Reference in New Issue
Block a user