Firstdata Global Gateway E4 Web Service

Introduction

The First Data Global Gateway e4 web service API is a web service that allows third-party applications to process transactions through the Global Gateway e4 system. The range of processing scenarios (Purchase, Refund, Pre-Authorization, etc.) enable flexible and powerful ways to implement custom business logic. First Data also provides free client libraries that ease integration with the Global Gateway e4 web service API.

The Global Gateway e4 web service API is available in both SOAP and REST, where the latter supports XML and JSON message formats. The same range of transaction processing scenarios is supported regardless of which style Global Gateway e4 web service API you choose.

Intention

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