wrouter/response/json.go

package response

import (
	"encoding/json"
	"fmt"
	"log"
	"net/http"
)

// JSON makes a JSON response
func JSON(writer http.ResponseWriter, status int, data interface{}) {
	jsonData, err := json.Marshal(data)

	if err != nil {
		log.Println("JSON Marshal failed: ", err.Error())

		writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
		writer.WriteHeader(503)
		fmt.Fprint(writer, "JSON marshalling failed:", err.Error())
		return
	}

	writer.Header().Set("Content-Type", "application/json")
	writer.WriteHeader(status)
	writer.Write(jsonData)
}