go-http-log/main.go

package main

import (
	"io"
	"log/slog"
	"net/http"
	"os"
)

// main
func main() {
	// Init logged
	logger := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo}))
	slog.SetDefault(logger)

	// Check for port override
	port := os.Getenv("PORT")
	if port == "" {
		port = "8080"
	}
	slog.Info("Starting server", "port", port)

	// Start HTTP server
	mux := http.NewServeMux()
	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		body, err := io.ReadAll(r.Body)
		if err != nil {
			slog.Error("Error reading request body", "error", err)
			body = []byte("")
		}

		slog.Info("Req",
			"remote", r.RemoteAddr,
			"method", r.Method,
			"path", r.URL.Path,
			"query", r.URL.RawQuery,
			"headers", r.Header,
			"body", string(body),
		)

		w.WriteHeader(http.StatusOK)
	})

	http.ListenAndServe(":"+port, mux)
}