Payments

Razorpay Payment Gateway Integration

Production-grade checkout, automated recurring mandates, custom Route splits and international payments, engineered with AI assistance and verified by senior engineers.

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Razorpay integrations engineered for reliable transactions

Integrating Razorpay requires handling webhooks reliably, verifying cryptographic signatures, and reconciling payments against order databases. Whether you need standard checkout, UPI intent flows, automated mandate billing via the Razorpay Subscriptions API, or marketplace split payouts through custom Razorpay Route integration, our team delivers production-ready implementations. AI coding tools speed up boilerplate endpoints, SDK wiring, and contract test generation, but payment logic demands strict human oversight. Experienced engineers direct the architecture, review every pull request, and manage release decisions. Our specialists verify webhook idempotency, audit token storage, test edge cases around drop-offs and refunds, and ensure safe handling of international currencies. When you hire a Razorpay developer from Canvas Developers, you get rapid AI-assisted delivery grounded in senior engineering rigor.

AI-assisted, expert-led Razorpay integration

How AI assists

  • Drafts server-side SDK wrappers, payment verification endpoints, and checkout client snippets for engineer review
  • Generates synthetic webhook payloads and contract test suites covering signature mismatches, timeouts, and network retries
  • Scaffolds database schemas and migration scripts for customer payment methods, subscription states, and ledger records
  • Parses Razorpay API error logs and webhook delivery failures to pinpoint payload format discrepancies and missing parameters

What our experts own

  • Engineers design the transaction lifecycle, enforcing HMAC signature validation, strict idempotency, and database locking
  • Engineers secure webhook secrets and key pairs, ensuring credentials remain outside client code and untrusted runtimes
  • Specialists architect financial ledger consistency across partial captures, split Route disbursements, chargebacks, and refunds
  • We approve production credentials, audit compliance readiness, conduct end-to-end sandbox verification, and own deployment

How a Razorpay payment reaches verified settlement

Illustrative checkout-to-ledger path; your backend stack and database architecture define the production implementation.

  1. Order initiated

    Your server calls the Razorpay Orders API to generate an order ID with currency and amount before checkout loads.

  2. Verify signature

    Upon payment completion, your backend verifies the Razorpay signature using HMAC SHA256 with your secret key.

    Checkpoint: Unverified or invalid signatures are rejected immediately

  3. Webhook processing

    The webhook receiver logs payment.captured, checks event idempotency against stored event IDs, and acknowledges with HTTP 200.

  4. Ledger and fulfillment

    Your application updates the order status, records transaction references, and triggers user access or fulfillment.

  5. Settlement reconciliation

    Scheduled workers pull Razorpay settlement reports and verify captured amounts against bank deposits and fees.

    Checkpoint: Discrepancies trigger administrative alerts for review

When something fails: Unconfirmed payments retry status checks via the Razorpay API; if verification fails or expires, orders are marked pending and flagged for operator review.

What you receive

What your Razorpay project can include

  • Custom checkout and mobile SDK integration

    Standard checkout, custom UI, and mobile SDK integration for iOS, Android, and Flutter, configured with UPI Intent, cards, net banking, and wallets.

  • Razorpay Subscriptions API and recurring billing

    Automated recurring mandate setups using the Razorpay Subscriptions API, supporting e-NACH, UPI Autopay, scheduled retries, and failed-payment notices.

  • Custom Razorpay Route integration

    Marketplace and platform payouts using custom Razorpay Route integration, automating vendor splits, hold periods, fee deductions, and refund reversals.

  • Razorpay international payments integration

    Accept cross-border payments with Razorpay international payments integration, supporting dynamic currency conversion and export compliance flows.

  • Idempotent webhook handlers and reconciliation

    Resilient serverless or microservice webhook listeners that verify signatures, prevent duplicate credit events, and reconcile bank settlement gaps.

  • Dedicated Razorpay API integration developer support

    When you hire a Razorpay developer, our engineers handle sandbox testing, API version migrations, security audits, and production go-live.

Prepare an integration that your team can operate

  • Access and environment setup

    Provide sandbox API keys or collaborator access to your Razorpay dashboard, backend codebase, and staging database. Share your target payment methods, currency requirements, and sample payloads for custom flows.

  • A realistic first scope

    Start with a defined checkout flow, subscription plan structure, or Route payout model. Complex edge cases like manual offline reconciliation or bespoke accounting exports can follow in subsequent milestones once core transactions are stable.

  • Handover and maintenance

    We deliver verified code, test coverage reports, webhook configuration guides, and incident runbooks. Ongoing API version upgrades, monitoring, and key rotation can be supported under an agreed maintenance plan; Razorpay gateway processing fees remain separate.

How we deliver your Razorpay integration

  1. 01

    Architecture and workflow scoping

    We audit your checkout journey, select payment methods (UPI, cards, international), define webhook endpoints, and map database transactions.

  2. 02

    Sandbox build and AI-assisted prototyping

    AI tools scaffold endpoints and contract tests while engineers implement HMAC signature validation, order creation, and idempotent webhook logic.

  3. 03

    End-to-end testing and edge case verification

    Engineers test drop-offs, delayed webhook notifications, partial captures, refunds, and mandate lifecycle states in the Razorpay sandbox.

  4. 04

    Live cutover and operational monitoring

    Coordinated activation of live API keys, webhook secret verification, initial live transaction monitoring, and complete runbook handover.

Two ways to work with AI tools

AI helps draft integration code and contract tests. Choose where it may process your code and API data.

Not sure? We'll recommend one during scoping. Compare AI delivery options

FAQ

Frequently Asked Questions

How do you prevent duplicate order fulfillment when Razorpay resends webhooks?

We build idempotent webhook consumers. Each incoming webhook is verified with the Razorpay HMAC SHA256 secret before processing. The handler stores the unique event ID and payment ID in a transactional database table. If Razorpay resends an event due to network latency, the duplicate is identified and acknowledged immediately with HTTP 200 without executing the fulfillment logic again.

Can you integrate the Razorpay Subscriptions API for recurring UPI and card mandates?

Yes. We implement the Razorpay Subscriptions API for recurring plans, supporting UPI Autopay and card mandates. Our engineers configure authentication flows, webhook listeners for subscription charged and halted events, customer notification hooks, and retry logic for failed renewals so your billing system stays synchronized.

How does Razorpay handle international cross-border payments?

Razorpay supports international cards and multi-currency transactions when enabled on your merchant account. Through our Razorpay international payments integration, we pass the appropriate currency codes, configure checkout currency presentation, and map settlement data in your base currency, accounting for currency conversion and export purpose documentation requirements.

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Plan your Razorpay gateway integration with us

Share your tech stack, transaction workflows, and target markets through our contact form at https://www.canvasdevelopers.com/contact. We will review your requirements and outline a scoped assessment.

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