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    Quick start

    Download PDF
    • Document history
    • Obtaining help
    • Establishing interaction with the payment gateway
      • Setting up the payment page URL
      • Identifying yourself when exchanging with the payment gateway
      • Managing the interaction with the merchant website
      • Managing security
      • Setting up the Instant Payment Notification
    • Send an HTML payment form via POST.
    • Computing the signature
      • Example of implementation with JAVA
      • Example of implementation with PHP
    • Analyzing the payment result
      • Retrieving data returned in the response
      • Computing the IPN signature
      • Comparing signatures
      • Processing the response data
    • Returning to the shop
    • Proceeding to testing
      • Making payment tests
      • Testing the IPN
    • Activating the shop in production mode
      • Generating the production key
      • Shifting your merchant website to production mode
      • Making a first production payment

    Setting up the payment page URL

    The merchant website interacts with the payment gateway by redirecting the buyer to the following URL:

    https://paiement.systempay.fr/vads-payment/
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