Golang Snippets: Print Any JSON request/response

  router.HandleFunc("/your-api", func(w http.ResponseWriter, r *http.Request) {
 
    var bodyBytes []byte
    var err error
 
    if r.Body != nil {
      bodyBytes, err = ioutil.ReadAll(r.Body)
      if err != nil {
        fmt.Printf("Body reading error: %v", err)
        return
      }
      defer r.Body.Close()
    }
 
    fmt.Printf("Headers: %+v\n", r.Header)
 
    if len(bodyBytes) > 0 {
      var prettyJSON bytes.Buffer
      if err = json.Indent(&prettyJSON, bodyBytes, "", "\t"); err != nil {
        fmt.Printf("JSON parse error: %v", err)
        return
      }
      fmt.Println(string(prettyJSON.Bytes()))
    } else {
      fmt.Printf("Body: No Body Supplied\n")
    }
 
    json.NewEncoder(w).Encode(map[string]bool{"ok": true})
  })