Standalone net/http middleware for panic recovery, CORS, request ID injection, and request logging. What's included: - Recover(): panic -> 500, captures debug.Stack, no logger required - CORS(origins): OPTIONS 204 preflight, origin allowlist, package-wide method/header constants - RequestID(generator): injects ID via logz.WithRequestID, sets X-Request-ID response header - RequestLogger(logger): logs method/path/status/latency/request_id; Error for 5xx, Info otherwise - Logger interface: Info, Error, With — duck-typed; satisfied by logz.Logger - StatusRecorder: exported http.ResponseWriter wrapper that captures written status code - Direct logz import for context helpers (documented exception to ADR-001) Tested-via: todo-api POC integration Reviewed-against: docs/adr/
24 lines
600 B
Go
24 lines
600 B
Go
package httpmw
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import (
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"net/http"
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"runtime/debug"
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)
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// Recover returns a middleware that catches panics, logs them, and returns 500.
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func Recover() func(http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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defer func() {
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if rec := recover(); rec != nil {
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stack := debug.Stack()
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http.Error(w, http.StatusText(http.StatusInternalServerError),
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http.StatusInternalServerError)
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_ = stack // available for future logger injection
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}
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}()
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next.ServeHTTP(w, r)
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})
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}
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}
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