API FONDYVersion 1.0

Brief description

  1. Interaction scheme A (with customer redirection to payment page)
  2. Interaction scheme B (with host-to-host request to obtain payment page URL)


Interaction scheme A (with customer redirection to payment page)

  1. 1
    Customer chooses product or service in merchant online shop and adds it to his cart
  2. 2
    Merchant places payment button which generates HTML form to be submitted to FONDY
  3. 3-4
    At merchant site customer clicks payment button and site redirects him to url https://api.fondy.eu/api/checkout/redirect/, sending parameters using HTTPS POST
  4. 5-8
    Customer enters payment details at payment page on FONDY payment gateway site. Payment gateway initiates debit via external payment system (bank, SEPA Direct Debit, PayPal etc.)
  5. 9-10
    1. After getting response from payment system payment gateway FONDY redirects customer to merchant site sending payment result parameters using HTTPS POST. Merchant shows result page with payment details.
  6. 11
    To ensure that merchant received response with payment details FONDY also sends callback with payment result parameters to merchant site using host-to-host HTTPS POST


Interaction scheme B (with preliminary host-to-host request to get payment page URL)

  1. 1
    Customer chooses product or service in merchant online shop and adds it to his cart
  2. 2
    Merchant places payment button which will redirect customer to FONDY payment page
  3. 3-4
    At merchant site customer clicks payment button and site redirects him to url https://api.fondy.eu/api/checkout/url/, sending parameters using HTTPS POST
  4. 5
    Payment gateway FONDY returns to merchant interim response with parameter checkout_url which contains URL to FONDY paymant page, where customer must be redirected to enter payment details.
  5. 6-7
    Merchant site redirects customer to checkout_url
  6. 8-10
    Customer enters payment details at payment page on FONDY payment gateway site. Payment gateway initiates debit via external payment system (bank, SEPA Direct Debit, PayPal etc.)
  7. 11-12
    After getting response from payment system payment gateway FONDY redirects customer to merchant site sending payment result parameters using HTTPS POST. Merchant shows result page with payment details.
  8. 11
    To ensure that merchant received response with payment details FONDY also sends callback with payment result parameters to merchant site using host-to-host HTTPS POST

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