Merchant API

V.1.0.0

Welcome to the Tietoevry Merchant API documentation—a complete guide to integrating Tietoevry Ecommerce Payment Gateway solution into Merchant platform effortlessly. This documentation provides all the essential details to help Merchants successfully incorporate solution and deliver a secure and user-friendly payment experience for your customers.

The Tietoevry E-Commerce Payment Gateway solution API follows the REST architectural style, where:

• Payments and transactions are treated as resources.

• Standard HTTP methods (e.g., GET, POST) are used to perform operations on resources.

• Each request specifies a media type for resource representation.

• Errors are communicated using standard HTTP response codes.

The payment gateway communicates using the JSON format, with the API format specified in the HTTP header as: application/json.

All interactions with the Payments Gateway occur over a secure TLS connection. It is critical that the Merchant API client validates the gateway's certificate to prevent potential Man-in-the-Middle attacks on payment data.

Payments

Initiate and process payments, recurring billing

Payment methods

Retrieve a list of payment methods available to the shop without initiating a new payment

Tokens

Token Management

Refunds

Refund payments

The API reference provided in this documentation is intended for demonstration and informational purposes only. It represents a simulated version of the actual E-Commerce Payment Gateway (EGW) API.

While we strive to ensure accuracy and completeness, the real production API may differ in terms of structure, parameters, authentication flows, or response formats. Final implementation details will be shared with merchants and partners as part of the formal onboarding and integration process.

Tietoevry reserves the right to modify, extend, or deprecate API endpoints as part of ongoing product development and platform evolution.