REST API uses 2 types of payment flows:

• Asynchronous
• Synchronous

Asynchronous payment

These payments receive final response asynchronously and you are responsible to fetch the final status from

In

1. Your application calls

1. Multiexcerpt include
   SpaceWithExcerpt EN MultiExcerptName Platform-Kurz PageWithExcerpt Wording

   , in Body of Request are defined:
   1. Payment method
   2. Your Return URL (preferably containing ID to reference payment when

1. 1. Multiexcerpt include
      SpaceWithExcerpt EN MultiExcerptName Platform-Kurz PageWithExcerpt Wording

      will redirect to this URL)
   2. Webhook URL

2. Multiexcerpt include
   SpaceWithExcerpt EN MultiExcerptName Platform-Kurz PageWithExcerpt Wording

1. responds synchronously, in Body of Response is defined Redirection URL
2. Your application is responsible to redirect browser to Redirection URL

2. Multiexcerpt include
   SpaceWithExcerpt EN MultiExcerptName Platform-Kurz PageWithExcerpt Wording

   receives response from 3rd party payment method with

1. result of payment

2. Multiexcerpt include
   SpaceWithExcerpt EN MultiExcerptName Platform-Kurz PageWithExcerpt Wording

   calls your Webhook URL with just

1. PaymentID in the body of

1. request
2. Your application is responsible to call

1. Multiexcerpt include
   SpaceWithExcerpt EN MultiExcerptName Platform-Kurz PageWithExcerpt Wording

   to fetch the status of the payment, using

1. PaymentID

2. Multiexcerpt include
   SpaceWithExcerpt EN MultiExcerptName Platform-Kurz PageWithExcerpt Wording

1. redirects client back to Merchant Return URL

Sequence diagram

Multiexcerpt
MultiExcerptName ProcessFlow_asynchron
draw.io Diagram border true diagramName REST_asynchron_CT simpleViewer false links auto tbstyle top lbox true diagramWidth 1109

Synchronous payment

These payments receive final response synchronously

in response to initial Request.

In

these payments are handled following way:

1. Your application calls

1. Multiexcerpt include
   SpaceWithExcerpt EN MultiExcerptName Platform-Kurz PageWithExcerpt Wording

   , in Body of Request is defined

1. payment method

1. Multiexcerpt include
   SpaceWithExcerpt EN MultiExcerptName Platform-Kurz PageWithExcerpt Wording

   responds synchronously, in Body of Response are defined:

1. 1. PaymentID
   2. Status

Sequence diagram

Multiexcerpt
MultiExcerptName ProcessFlow_synchron
draw.io Diagram border true diagramName REST_synchron_CT simpleViewer false links auto tbstyle top lbox true diagramWidth 821

Subsequent actions

After the initial

payment is created, there is set of possible

actions that can be performed on the

payment:

• Reversal
• Capture
• Refund (Credit)
  

All of these subsequent

actions have synchronous flow.

Webhooks

For payment methods with asynchronous flow or any updates on the payment status,

For security purposes, Webhook contains only non sensitive

PaymentID and your application is responsible to fetch the status of payment by actively calling the API.

In

Webhooks are handled following way:

1. Multiexcerpt include
   SpaceWithExcerpt EN MultiExcerptName Platform-Kurz PageWithExcerpt Wording

   calls your Webhook URL

1. 1. PaymentID is in the body of

1. 1. request
2. Your application calls

1. Multiexcerpt include
   SpaceWithExcerpt EN MultiExcerptName Platform-Kurz PageWithExcerpt Wording

   and fetches the status of the payment

1. using

1. PaymentID