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feat: add n8n integration with MCP Client Tool support

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- Add N8N_MODE environment variable for n8n-specific behavior
- Implement HTTP Streamable transport with multiple session support
- Add protocol version endpoint (GET /mcp) for n8n compatibility
- Support multiple initialize requests for stateless n8n clients
- Add Docker configuration for n8n deployment
- Add test script with persistent volume support
- Add comprehensive unit tests for n8n mode
- Fix session management to handle per-request transport pattern

BREAKING CHANGE: Server now creates new transport for each initialize request
when running in n8n mode to support n8n's stateless client architecture

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
czlonkowski
2025-08-01 00:34:31 +02:00
parent a4053de998
commit a597ef5a92
23 changed files with 2395 additions and 481 deletions
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19
src/utils/logger.ts
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@@ -56,21 +56,26 @@ export class Logger {
}
private log(level: LogLevel, levelName: string, message: string, ...args: any[]): void {
// Allow ERROR level logs through in more cases for debugging
const allowErrorLogs = level === LogLevel.ERROR && (this.isHttp || process.env.DEBUG === 'true');
// Check environment variables FIRST, before level check
// In stdio mode, suppress ALL console output to avoid corrupting JSON-RPC
// In stdio mode, suppress ALL console output to avoid corrupting JSON-RPC (except errors when debugging)
// Also suppress in test mode unless debug is explicitly enabled
if (this.isStdio || this.isDisabled || (this.isTest && process.env.DEBUG !== 'true')) {
// Silently drop all logs in stdio/test mode
return;
// Allow error logs through if debugging is enabled
if (!allowErrorLogs) {
return;
}
}
if (level <= this.config.level) {
if (level <= this.config.level || allowErrorLogs) {
const formattedMessage = this.formatMessage(levelName, message);
// In HTTP mode during request handling, suppress console output
// In HTTP mode during request handling, suppress console output (except errors)
// The ConsoleManager will handle this, but we add a safety check
if (this.isHttp && process.env.MCP_REQUEST_ACTIVE === 'true') {
// Silently drop the log during active MCP requests
if (this.isHttp && process.env.MCP_REQUEST_ACTIVE === 'true' && !allowErrorLogs) {
// Silently drop the log during active MCP requests (except errors)
return;
}