Direct Post Payment Gateway Integration API
Direct Post API Documentation
The Direct Post API is the simplest integration method for retail software payment applications and websites.
1. customer sends their payment information to the merchant's web site.
2. merchant software or web site posts the payment data to the payment gateway.
3. payment gateway responds immediately with the results of the transactions.
4. merchant web site or software displays the appropriate message to the customer.
The communication method used to send messages to the payment gateway server is the standard HTTP protocol over an SSL connection.
In the Direct Post method, the communications with the cardholder (Steps 1 and 4) are developed completely by the merchant and therefore are not defined by the payment gateway. Step 1 should simply collect the payment data from the cardholder and Step 4 should display the appropriate transaction receipt or declined message.
In Step 2, transaction details should be delivered to the payment gateway using the POST method with the appropriate variables defined below posted along with the request.
In Step 3, the transaction responses are returned in the body of the HTTP response in a query string name / value format delimited by ampersands.
For example: variable1=value1&variable2=value2&variable3=value3
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