Seamless Payment Integration in FlutterFlow: A Real Developer’s Guide to Stripe and Razorpay

Building a product is hard. But collecting payments? That’s where many founders freeze.

If you're working in FlutterFlow and wondering how to implement Stripe or Razorpay to start accepting payments, you're in the right place. Payments are non-negotiable, whether you're launching a SaaS product, an e-commerce store, or a booking platform.

And as someone who has implemented both Stripe and Razorpay for clients across multiple countries using FlutterFlow, let me tell you: the process is easier than it looks, but only if you know what to do and what to avoid.

Why Stripe and Razorpay?

Both Stripe and Razorpay are leading payment gateways, but they cater to slightly different audiences.

• Stripe is globally dominant. It supports a wide range of payment methods including credit/debit cards, wallets, Apple Pay, and more. If you’re building for users in the US, UK, Europe, or Australia, Stripe is a solid bet.
  
  
• Razorpay is tailored for the Indian market. It supports UPI, Paytm, NetBanking, and has strong local compliance. If you want conversions in India, Razorpay is a no-brainer.
  
  

FlutterFlow allows you to connect both through REST APIs or Custom Actions.

Step 1: What You Need to Get Started

Before you open FlutterFlow, make sure you have:

• A verified Stripe or Razorpay account
  
  
• A FlutterFlow project with Firebase enabled
  
  
• A backend (Firebase Functions, Supabase Edge Functions, or Node.js) for securely handling payment logic
  
  
• Test cards and API keys from the payment provider’s dashboard
  
  

Don’t skip the backend part. You never want to expose your secret keys directly in FlutterFlow it’s a security risk.

Step 2: Setting Up Stripe

On your server:

• Create a Firebase Function that generates a Stripe Checkout Session
  
  
• It should take amount, currency, and user ID as input
  
  
• Return the checkout URL to FlutterFlow
  
  

In FlutterFlow:

• Go to Settings > API Calls
  
  
• Add a POST request to your backend endpoint (e.g. /create-checkout-session)
  
  
• On success, launch the returned URL using Launch URL action
  
  

What this does: It takes the user to Stripe’s secure hosted page to complete the payment. Once done, they’ll be redirected to a success page.

Pro Tip: Use metadata to attach user IDs and other custom fields for post-payment automation.

Step 3: Setting Up Razorpay

Razorpay works slightly differently.

Backend:

• Generate an order using Razorpay’s Order API
  
  
• Return the order_id to your FlutterFlow app
  
  

In FlutterFlow:

• Use the Razorpay SDK via Custom Code or Custom Actions
  
  
• Pass the order_id, amount, and customer details
  
  
• Handle the success/failure callbacks using FlutterFlow actions
  
  

Razorpay doesn’t redirect like Stripe it’s more of an in-app modal experience.

Pro Tip: Razorpay’s UPI and wallet support makes it ideal for mobile-heavy Indian audiences.

Step 4: Testing Payments

Always use sandbox/test modes.

Stripe Test Cards:

• 4242 4242 4242 4242 (Visa)
  
  
• Any future expiry + CVC 123
  
  

Razorpay Test Mode:

• Use “Test” keys from dashboard
  
  
• UPI ID: success@razorpay
  
  

Make sure to test:

• Successful payment
  
  
• Canceled/abandoned payment
  
  
• Network errors
  
  
• Double-click or refresh issues
  
  

Bonus: Store payment attempts in Firestore for tracking/debugging later.

Step 5: Going Live

Once tested:

1. Replace test API keys with live keys
   
   
2. Update your backend endpoints for production
   
   
3. Ensure domain whitelisting and webhook configurations are done
   
   
4. Double-check compliance (GST, PCI DSS if needed)
   
   

You’re now good to go.

What I’ve Learned (So You Don’t Have To)

• Don’t skip the backend setup. Even with low-code, security is non-negotiable.
  
  
• Stripe is easier to start with if your audience is international.
  
  
• Razorpay takes more effort in setup but converts better for Indian users.
  
  
• Always add loading states and handle payment failures gracefully.
  
  
• Want recurring payments? Stripe Subscriptions are doable via Stripe Billing + Custom API Calls.
  
  

Final Thoughts

Integrating Stripe and Razorpay in FlutterFlow isn’t just possible it’s efficient, scalable, and secure when done right. Whether you’re building a SaaS, selling digital products, or enabling peer-to-peer services, this setup will give you everything you need to start charging users confidently.

I’ve helped dozens of founders launch with this exact stack. And if you're building in FlutterFlow, you're already ahead.

Need help implementing this in your project? Let’s talk. I can help you build a production-ready payment system without wasting weeks figuring it all out.