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📄️ Introduction

Let’s explore Trinex Buy’s Payin System in under 5 minutes.

Welcome to Trinex Buy Payment Gateway’s Payin Feature

In today’s fast-paced digital economy, businesses demand reliable, secure, and developer-friendly payment solutions. Trinex Buy rises to meet this need with a seamless integration experience and robust Payin system that simplifies online payment collection. Whether you’re embedding payments into a mobile app, managing payment flows from your platform, or using a hosted payment page, Trinex Buy offers a flexible suite tailored to modern business requirements.

Key Payin Features​

Trinex Buy Payin services are designed to handle all aspects of payment initiation, tracking, and confirmation with security and speed.

1. Standard Payin API​

This is the core feature that allows businesses to initiate a payment request via an API. Ideal for custom integration into web or mobile applications, this feature enables:

  • Payment Initiation: Kickstart payments using a simple POST API call to /StartPayment/initiate_payment/.

  • Custom Experience: Collect user details (name, phone, email) while controlling the interface within your app or website.

  • Secure Transactions: Hash-based HMAC SHA-256 encryption ensures request integrity and security.

The Payin System allows you to initiate payments, check payment statuses, and manage your transaction flows seamlessly.

2. Hosted Payin Page​

Don’t want to handle sensitive data? Trinex Buy provides a fully hosted payment page, eliminating the complexity of PCI compliance.

  • Quick Integration: No heavy coding or design work needed.

  • Custom Branding: Hosted page can be personalized with your business logo and theme.

  • PCI DSS Compliant: Trinex Buy handles all sensitive data securely, reducing your compliance burden.

Once the API call is successful, Trinex Buy responds with multiple UPI payment URLs (Google Pay, PhonePe, Paytm, etc.) tailored to your transaction.

  • Instant Pay Options: Customers can pay directly via their preferred UPI app.
  • Smart Redirection: Return URLs ensure users are brought back to your application after payment completion.
  • Real-time Updates: Each payment is tracked and confirmed instantly.

Instant Callback System​

A core strength of Trinex Buy is its instant callback mechanism. As soon as a transaction is completed, Trinex Buy sends a server-to-server callback to your return URL. This enables:

  • Instant Status Updates: Know immediately when a transaction is successful or fails.

  • Real-time Order Processing: Speed up fulfillment and improve user communication.

  • Seamless User Journey: Ensure your platform reflects payment statuses without delay.

Payment Status API​

Need to verify the status of a transaction? Trinex Buy provides a dedicated status check endpoint:

  • Endpoint: /PaymentStatus/check_status

  • Authentication: Uses merchant_key, order_id, and a secure HMAC hash.

  • Detailed Response: Receive information including transaction status, UTR number, timestamps, and more.

  • Error Handling: Get precise error codes for issues like invalid order ID, hash mismatch, or inactive keys.

Benefits of Using Trinex Buy Payin System​

By integrating Trinex Buy, your business can enjoy:

  • Robust Security: Industry-grade HMAC SHA-256 encryption with merchant secret key.

  • Simple Integration: Clean, well-documented APIs with example code provided.

  • Multiple Payment Options: Enable UPI, Paytm, PhonePe, GPay, and more with one request.

  • Faster Settlements: Real-time callback and transaction tracking minimize delays.

  • Error Transparency: Easy-to-understand error responses make debugging effortless.

Feel free to explore other sections like Payin Intent, Fetch Payin Status, and more to get the full picture.