examples: Fix SSE streaming issue by moving logging from HTTP to MCP middlewarre #614
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… layer The previous HTTP-level logging middleware blocked SSE streaming because handler.ServeHTTP() does not return until the connection closes for GET requests (SSE streams). This prevented response headers from being sent to the client. Changes: - Replace HTTP-level logging handler with MCP middleware pattern - Implement logging at the MCP protocol layer using mcp.Middleware - Log session ID, method names, duration, and error status - Add middleware to server using AddReceivingMiddleware() - Simplify main.go by removing HTTP handler wrapping - Use standard log package with structured format for clarity This allows SSE streams to work properly while still providing detailed logging for all MCP protocol-level method calls.
Contributor
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Thank you. I'll see if @jba wants to review, since he reviewed the original. Otherwise, I will review on Monday. |
jba
previously requested changes
Nov 9, 2025
examples/http/logging_middleware.go
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| // Log request details. | ||
| log.Printf("[REQUEST] %s | Session: %s | Method: %s", | ||
| start.Format(time.RFC3339), |
Contributor
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The log package already prints the time by default. I know the previous code had this, but I think it's redundant.
findleyr
approved these changes
Nov 11, 2025
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In
examples/http, previous HTTP-level logging middleware blocked SSE streaming becausehandler.ServeHTTP()does not return until the connection closes for GET requests (SSE streams).This prevented response headers from being sent to the client.
Changes:
This allows SSE streams to work properly while still providing detailed logging for all MCP protocol-level method calls.