Creating a handler that return JSON

cmd/web/routes.go

@@ -24,6 +24,7 @@ func routes(app *config.AppConfig) http.Handler {
 	mux.Get("/majors-suite", handlers.Repo.Majors)
 	mux.Get("/reservation", handlers.Repo.Reservation)
 	mux.Post("/reservation", handlers.Repo.PostReservation)
+	mux.Get("/reservation-json", handlers.Repo.ReservationJSON)
 	mux.Get("/make-reservation", handlers.Repo.MakeReservation)
 
 	fileServer := http.FileServer(http.Dir("./static/"))

pkg/handlers/handlers.go

@@ -1,10 +1,12 @@
 package handlers
 
 import (
+	"encoding/json"
 	"fmt"
 	"go-udemy-web-1/pkg/config"
 	"go-udemy-web-1/pkg/models"
 	"go-udemy-web-1/pkg/render"
+	"log"
 	"net/http"
 )
 
@@ -80,3 +82,25 @@ func (m *Repository) PostReservation(w http.ResponseWriter, r *http.Request) {
 	end := r.Form.Get("end")
 	fmt.Fprintf(w, "Posted to search availability from %s to %s", start, end)
 }
+
+type responseJSON struct {
+	OK      string `json:"ok"`
+	Message string `json:"message"`
+}
+
+// MakeReservation is the make reservation page handler
+func (m *Repository) ReservationJSON(w http.ResponseWriter, r *http.Request) {
+	resp := responseJSON{
+		OK:      "true",
+		Message: "Available!",
+	}
+
+	out, err := json.MarshalIndent(resp, "", "    ")
+	if err != nil {
+		log.Println(err)
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+
+	w.Write(out)
+}