Getting the paymentIntent set up route and handler in API

cmd/api/api.go

@@ -0,0 +1,89 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"time"
+)
+
+const (
+	version = "1.0.0"
+)
+
+type config struct {
+	port int
+	env  string
+	db   struct {
+		dsn string
+	}
+	stripe struct {
+		secret string
+		key    string
+	}
+}
+
+type application struct {
+	config   config
+	infolog  *log.Logger
+	errorLog *log.Logger
+	version  string
+}
+
+func (app *application) serve() error {
+	srv := &http.Server{
+		Addr:              fmt.Sprintf(":%d", app.config.port),
+		Handler:           app.routes(),
+		IdleTimeout:       30 * time.Second,
+		ReadTimeout:       10 * time.Second,
+		ReadHeaderTimeout: 5 * time.Second,
+		WriteTimeout:      5 * time.Second,
+	}
+
+	app.infolog.Printf(
+		"Starting Backend server in %s mode on port %d",
+		app.config.env,
+		app.config.port,
+	)
+	return srv.ListenAndServe()
+}
+
+func main() {
+	var cfg config
+
+	flag.IntVar(&cfg.port, "port", 4001, "Server port to listen on")
+	flag.StringVar(
+		&cfg.env,
+		"env",
+		"development",
+		"Application environment {development|production|maintenance}",
+	)
+	flag.StringVar(
+		&cfg.db.dsn,
+		"dsn",
+		"root@tcp(localhost:6379)/widgets?parseTime=true&tls=false",
+		"Application environment {development|production}",
+	)
+
+	flag.Parse()
+
+	cfg.stripe.key = os.Getenv("STRIPE_KEY")
+	cfg.stripe.secret = os.Getenv("STRIPE_SECRET")
+
+	infoLog := log.New(os.Stdout, "INFO\t", log.Ldate|log.Ltime)
+	errorLog := log.New(os.Stdout, "ERROR\t", log.Ldate|log.Ltime|log.Lshortfile)
+
+	app := &application{
+		version:  version,
+		config:   cfg,
+		infolog:  infoLog,
+		errorLog: errorLog,
+	}
+
+	err := app.serve()
+	if err != nil {
+		log.Fatal(err)
+	}
+}

cmd/api/handlers-api.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+type stripePayload struct {
+	Currency string `json:"currency"`
+	Amount   string `json:"amount"`
+}
+
+type jsonResponse struct {
+	OK      bool   `json:"ok"`
+	Message string `json:"message"`
+	Content string `json:"content"`
+	ID      int    `json:"id"`
+}
+
+func (app *application) GetPaymentIntent(w http.ResponseWriter, r *http.Request) {
+	j := jsonResponse{
+		OK: true,
+	}
+
+	out, err := json.MarshalIndent(j, "", "    ")
+	if err != nil {
+		app.errorLog.Println(err)
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	w.Write(out)
+}

cmd/api/routes-api.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"net/http"
+
+	"github.com/go-chi/chi/v5"
+	"github.com/go-chi/cors"
+)
+
+func (app *application) routes() http.Handler {
+	mux := chi.NewRouter()
+
+	mux.Use(cors.Handler(cors.Options{
+		AllowedOrigins:   []string{"https://*", "http://*"},
+		AllowedMethods:   []string{"GET", "POST", "PUT", "DELETE", "OPTIONS"},
+		AllowedHeaders:   []string{"Accept", "Authorization", "Content-Type", "X-CSRF-Token"},
+		AllowCredentials: false,
+		MaxAge:           300,
+	}))
+
+	mux.Get("/api/payment-intent", app.GetPaymentIntent)
+	return mux
+}