How do I implement request logging and tracing?

In Go, implementing request logging and tracing can significantly aid in monitoring the health and performance of your applications. This entails capturing details about incoming requests, including timestamps, request paths, and any associated errors. Below is an example code snippet to demonstrate how to implement such logging.


    package main

    import (
        "log"
        "net/http"
        "time"
    )

    // LoggingMiddleware is a middleware that logs incoming requests
    func LoggingMiddleware(next http.Handler) http.Handler {
        return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
            start := time.Now()

            // Process the request
            next.ServeHTTP(w, r)

            // Log the request details
            log.Printf("Request: %s %s took %s", r.Method, r.URL.Path, time.Since(start))
        })
    }

    func main() {
        mux := http.NewServeMux()
        mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
            w.Write([]byte("Hello, World!"))
        })

        // Wrap the mux with the logging middleware
        loggedMux := LoggingMiddleware(mux)

        // Start the server
        log.Println("Server starting on :8080")
        http.ListenAndServe(":8080", loggedMux)
    }

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How do I implement request logging and tracing?

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How do I implement request logging and tracing?

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