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To add SDK to your app, add the following dependency in your adle: dependencies Install Paytm Android SDK using the Android Studio and IntelliJ. Steps to start accepting payments via Paytm Android SDK Step 1: SDK Installation and Setup This protects you from scenarios where your account credentials are compromised or request/response has tampered.įind the detailed interaction of each system component in the flowchart below: Verify the transaction status with Transaction Status API via server to server call.Utility to verify checksumhash is available here. Verify checksumhash received in response on your server-side.Once the payment is complete, a response is posted back to your app via callback. Customer fills the payment details and completes the payment authentication.SDK verifies payload and displays the Paytm payment checkout page.Your server passes the payload and checksumhash back to the app, which hands over these details to Paytm SDK.Utility to generate checksumhash is available here. Checksumhash is a signature used by Paytm to ensure that the request has not tampered. This order payload is used to generate checksumhash by our server-side utility and merchant key on your server.When a customer clicks the Pay button, order related payload is passed to your server by the app.Overview of payment processing via Paytm Android SDK