ADD: first api route get bookings

Backend/main.go

@@ -33,6 +33,8 @@ func timeHandler(w http.ResponseWriter, r *http.Request) {
 	switch r.Method {
 	case "PUT":
 		createBooking(w, r)
+	case "GET":
+		getBookings(w, r)
 	default:
 		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
 	}
@@ -57,6 +59,21 @@ func createBooking(w http.ResponseWriter, r *http.Request) {
 	w.WriteHeader(http.StatusBadRequest)
 }
 
+func getBookings(w http.ResponseWriter, r *http.Request) {
+	card_id := r.URL.Query().Get("cardID")
+	bookings, err := GetBookingsByCardID(DB, card_id)
+	if err != nil {
+		log.Println("Error getting bookings: ", err)
+		http.Error(w, "Internal Server Error", http.StatusInternalServerError)
+		return
+	}
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(bookings)
+
+}
+
+// func getBooking(w http.ResponseWriter, r *http.Request)
+
 func getEnv(key, fallback string) string {
 	if value, ok := os.LookupEnv(key); ok {
 		return value