Stripe Payment with Golang

In this blog post, I will discussed on the topic of stripe payment integration with Golang. Before that i will give brief introduction about this and move head to simple implementation.

It is a famous payment gateway that helps in financial transaction between merchants and customers. It accepts 133+ countries currency. It is a powerful payment engine that makes money move easily. Millions of popular companies like Google, Shipfiy, Uber, Slace use Stripe payment gateway.

Steps to Integration

Step 1: Create stripe account on stripe dashboard

Step 2: Move to the this https://dashboard.stripe.com/test/apikeys url and reveal your secret key.

Step 3: Then install the libraries for access to the Stripe API from your application:

go get github.com/stripe/stripe-go/v74

Step 4: Redirect your customer to Stripe Checkout

<html>
  <head>
    <title>Payment for product</title>
  </head>
  <body>
    <form action="/create-checkout-session" method="POST">
      <button type="submit">Checkout</button>
    </form>
  </body>
</html>

Step 5: After creating a checkout session, redirect your customer to the URL returned in the response.

func main() {
 // This is a public sample test API key.
        //Assign your revealed secret key 
 stripe.Key = "sk_test_51MOelXSDtyGjsOF1ypWrnjoRQSAteBMw4bIKEIoLbng6yH53RE8EuRPx9CJXSTZXkMAXQetYWovhWblY1xEWYViZ000bUuHaux"

 http.Handle("/", http.FileServer(http.Dir("public")))
 http.HandleFunc("/create-checkout-session", createCheckoutSession)
 addr := "localhost:4242"
 log.Fatal(http.ListenAndServe(addr, nil))
}

func createCheckoutSession(w http.ResponseWriter, r *http.Request) {
  params := &stripe.CheckoutSessionParams{
  Mode: stripe.String(string(stripe.CheckoutSessionModePayment)),
  LineItems: []*stripe.CheckoutSessionLineItemParams{
   {
    PriceData: &stripe.CheckoutSessionLineItemPriceDataParams{
     Currency: stripe.String("usd"),
     ProductData: &stripe.CheckoutSessionLineItemPriceDataProductDataParams{
      Name: stripe.String("Service"),
     },
     UnitAmount: stripe.Int64(3000),
    },
    Quantity: stripe.Int64(1),
   },
  },
  SuccessURL: stripe.String("http://localhost:3000/success"),
  CancelURL:  stripe.String("http://localhost:3000/cancel"),
 }

 s, err := session.New(params)
 if err != nil {
  log.Printf("session.New: %v", err)
 }
 http.Redirect(w, r, s.URL, http.StatusSeeOther)
}

Step 6: Show a success or failure page after checkout.

<html>
  <head><title>Thanks for your order!</title></head>
  <body>
    <h1>Thanks for your order!</h1>
    <p>
      We appreciate your business!
      If you have any questions, please email
      <a href="mailto:orders@example.com">orders@example.com</a>.
    </p>
  </body>
</html>

Step 7: There are several test cards you can use to make sure your integration is ready for production. Use them with any CVC, postal code and future expiration date.

Succeeds and immediately processes the payment.
- 4242 4242 4242 4242
Complete 3D Secure 2 authentication for a successful payment.
- 4000 0000 0000 3220
Always fails with a decline code of insufficient_funds.
- 4000 0000 0000 9995

Step 8: Finally we can see the marchent dashboard to see the checkout.

BABULAL TAMANG

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