Learning Go. First attempt at serving JSON.

gistfile1.go

package main

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

// Learning Go
// First try at serving JSON

type Food struct {
	Name  string  `json:"name"`
	Price float32 `json:"price"`
}

func main() {
	// Serving a slice
	http.HandleFunc("/foods", func(w http.ResponseWriter, r *http.Request) {
		foods := []Food{
			{"Taco", 3.99},
			{"Burrito", 6.29},
			{"Fajita", 12.49},
			{"Enchilada", 9.75},
		}

		foodsJson, err := json.Marshal(&foods)
		if err != nil {
			fmt.Println("/foods error: ", err)
			return
		}
		w.Header().Set("Content-Type", "application/json")
		fmt.Fprintf(w, string(foodsJson))
	})

	// Serving a simple object
	http.HandleFunc("/taco", func(w http.ResponseWriter, r *http.Request) {
		taco := Food{Name: "Chicken Paprika", Price: 3.49}
		tacoJson, err := json.Marshal(taco)
		if err != nil {
			fmt.Println("/taco error: ", err)
			return
		}
		w.Header().Set("Content-Type", "application/json")
		fmt.Fprintf(w, string(tacoJson))
	})

	err := http.ListenAndServe("localhost:9090", nil)

	if err != nil {
		fmt.Println("ListenAndServe Error: ", err)
	}
}