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    Form payment

    • Implementation quick start guide
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    Quick start

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    • Establishing interaction with the payment gateway
      • Setting up the payment page URL
      • Identifying yourself when exchanging with the payment gateway
      • Managing interaction with the merchant website
      • Managing security
    • Setting up notifications
      • Setting up the Instant Payment Notification
      • Automatic retry in case of failure
      • Other cases of notification
    • Sending a payment form via POST
    • Computing the signature
      • Example of implementation with JAVA
      • Example of implementation with PHP
    • Implementing the IPN
      • Preparing your environment
      • Retrieving data returned in the response
      • Computing the IPN signature
      • Comparing signatures
      • Analyzing the nature of the notification
      • Processing the response data
      • Running tests and troubleshooting
    • Returning to the shop
    • Proceeding to test phase
    • Activating the shop in production mode
      • Generating the production key
      • Shifting your merchant website to production mode
      • Making the 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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