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fix: deprecate USE_FIXED_HTTP for SSE streaming support (Issue #524) (#525)

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* fix: deprecate USE_FIXED_HTTP for SSE streaming support (Issue #524)

The fixed HTTP implementation does not support SSE streaming required
by clients like OpenAI Codex. This commit deprecates USE_FIXED_HTTP
and makes SingleSessionHTTPServer the default.

Changes:
- Add deprecation warnings in src/mcp/index.ts and src/http-server.ts
- Remove USE_FIXED_HTTP from docker-compose.yml and Dockerfile.railway
- Update .env.example with deprecation notice
- Rename npm script to start:http:fixed:deprecated
- Update all documentation to remove USE_FIXED_HTTP references
- Mark test case as deprecated

Users should unset USE_FIXED_HTTP to use the modern SingleSessionHTTPServer
which supports both JSON-RPC and SSE streaming.

Closes #524

Concieved by Romuald Członkowski - www.aiadvisors.pl/en

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* chore: bump version to 2.31.8 and add CHANGELOG entry

- Fix comment inaccuracy: "deprecated" not "deprecated and removed"
- Bump version from 2.31.7 to 2.31.8
- Add CHANGELOG entry documenting USE_FIXED_HTTP deprecation
- Update all deprecation messages to reference v2.31.8

Concieved by Romuald Członkowski - www.aiadvisors.pl/en

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

---------

Co-authored-by: Romuald Członkowski <romualdczlonkowski@MacBook-Pro-Romuald.local>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Romuald Członkowski
2026-01-07 13:42:16 +01:00
committed by GitHub
parent 7b0ff990ec
commit 861005eeed
13 changed files with 77 additions and 6839 deletions
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8
.env.example
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@@ -37,9 +37,11 @@ MCP_SERVER_HOST=localhost
# Server mode: stdio (local) or http (remote)
MCP_MODE=stdio
# Use fixed HTTP implementation (recommended for stability)
# Set to true to bypass StreamableHTTPServerTransport issues
USE_FIXED_HTTP=true
# DEPRECATED: USE_FIXED_HTTP is deprecated as of v2.31.8
# The fixed HTTP implementation does not support SSE streaming required by
# clients like OpenAI Codex. Use the default SingleSessionHTTPServer instead.
# See: https://github.com/czlonkowski/n8n-mcp/issues/524
# USE_FIXED_HTTP=true # DO NOT USE - deprecated
# HTTP Server Configuration (only used when MCP_MODE=http)
PORT=3000