egutierrez
e030b105b1
Middleware que envuelve cualquier http.Handler y emite un log info por cada request con method, path, status y duration_ms. Hereda los campos contextuales del Logger (app, version, request_id...) y se compone con HTTPMiddlewareChain + HTTPCORSMiddleware. Diferencia con http_logger_middleware: este escribe JSON estructurado via slog en vez de texto plano a un io.Writer. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
39 lines
1.1 KiB
Go
39 lines
1.1 KiB
Go
package infra
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import (
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"net/http"
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"time"
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)
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// LoggerMiddleware retorna un Middleware que emite un log estructurado por cada request HTTP.
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// Cada request produce una entrada a nivel info con method, path, status y duration_ms.
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// Respeta los campos contextuales que ya tenga el logger (app, version, request_id...).
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func LoggerMiddleware(logger *Logger) Middleware {
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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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start := time.Now()
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rw := &loggerResponseWriter{ResponseWriter: w, status: http.StatusOK}
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next.ServeHTTP(rw, r)
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duration := time.Since(start)
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LogInfo(logger, "http request",
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"method", r.Method,
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"path", r.URL.Path,
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"status", rw.status,
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"duration_ms", duration.Milliseconds(),
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)
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})
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}
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}
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// loggerResponseWriter captura el status code escrito al ResponseWriter.
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// Nombrado distinto de responseWriter (http_logger_middleware.go) para evitar colision.
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type loggerResponseWriter struct {
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http.ResponseWriter
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status int
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}
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func (rw *loggerResponseWriter) WriteHeader(status int) {
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rw.status = status
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rw.ResponseWriter.WriteHeader(status)
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}
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