rest-api go

tes.go

package main

import (
	"encoding/json"
	"github.com/gorilla/mux"
	"log"
	"net/http"
	"strconv"
)

//Role adalah model dari sushi API | blueprint
type Roll struct {
	ID          string `json:"id"`
	Name        string `json:"name"`
	Description string `json:"description"`
	Ingredient  string `json:"ingredient"`
}

// Init rolls var as a slice (untuk simpan data) | penyimpanan
var rools []Roll

func main() {
	// Generate Mock Data
	rools = append(rools,
		Roll{
			ID:          "1",
			Name:        "Salmon",
			Description: "apa saja",
			Ingredient:  "Salmon",
		},
		Roll{
			ID:          "2",
			Name:        "Udang",
			Description: "apa saja",
			Ingredient:  "xxn",
		},


	)

	// init Router
	router := mux.NewRouter()

	//Handle EndPoints/Routing
	router.HandleFunc("/sushi", getRolls).Methods("GET")
	router.HandleFunc("/sushi/{id}", getRoll).Methods("GET")
	router.HandleFunc("/sushi", createRoll).Methods("POST")
	router.HandleFunc("/sushi/{id}", updateRoll).Methods("POST")
	router.HandleFunc("/sushi/{id}", deleteRoll).Methods("DELETE")

	// untuk tau kapan fail koneksi
	log.Fatal(http.ListenAndServe(":8080", router))
}
// delete single shusi
func deleteRoll(writer http.ResponseWriter, request *http.Request) {
	writer.Header().Set("Content-Type", "application/json")
	params := mux.Vars(request)
	for i, item := range rools {
		if item.ID == params["id"] {
			rools = append(rools[:i], rools[i+1:]...)
			break
		}

	}

}

// create single shusi
func createRoll(writer http.ResponseWriter, request *http.Request) {
	writer.Header().Set("Content-Type", "application/json")
	var newRoll Roll
	_ = json.NewDecoder(request.Body).Decode(&newRoll)

	// helper generate id
	newRoll.ID = strconv.Itoa(len(rools)+1)
	rools = append(rools, newRoll)
	_ = json.NewEncoder(writer).Encode(newRoll)
}

// update single shusi
func updateRoll(writer http.ResponseWriter, request *http.Request) {

	writer.Header().Set("Content-Type", "application/json")
	params := mux.Vars(request)
	for i, item := range rools {
		if item.ID == params["id"] {
			rools = append(rools[:i], rools[i+1:]...)

			var newRoll Roll
			_ = json.NewDecoder(request.Body).Decode(&newRoll)

			// helper generate id
			newRoll.ID = params["id"]
			rools = append(rools, newRoll)
			_ = json.NewEncoder(writer).Encode(newRoll)
			return
		}
	}
}

// Show Single
func getRoll(writer http.ResponseWriter, request *http.Request) {
	writer.Header().Set("Content-Type", "application/json")
	params := mux.Vars(request)
	for _, item := range rools {
		if item.ID == params["id"] {
			_ = json.NewEncoder(writer).Encode(item)
			return
		}
	}
	// kalau bisa pakai map untuk parkir, tapi bebas sih
}

// Show All sushi
func getRolls(writer http.ResponseWriter, request *http.Request) {
	writer.Header().Set("Content-Type", "application/json")
	_ = json.NewEncoder(writer).Encode(rools)
}