Implement the callback
Implement the callback based on the signature in the refund_extern.h file and pass this as a parameter of the refund call. For more information on how to do this, see Implement callbacks.
Allocate the request struct
Allocates, initializes and returns a refund_request struct. Populate the request by performing string duplication.
If you want the data for later use, retain it, or it will be released automatically.
| Name | Description |
|---|---|
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Allocates, initializes and returns a |
Call the refund function
Call the refund function to initiate a cancel or refund on a transaction that has been processed by the Adyen payments platform. In the refund request, include a modification_amount_currency and m``odification_amount_value that specifies the amount to be refunded.
Parameters
| Value | Description |
|---|---|
refund_request |
Pointer to the refund_request struct, this struct contains all the input parameters for this call. |
refund_response |
Pointer to the callback function in the POS that will be called with the results of the refund call. |
echo_struct |
Pointer to a POS defined struct. Returned in the callback. It can be used to share a POS data struct between the call to the library and the callback from the library in response to the call. |
Handle the callback
The refund_CB returns the immediate response to the call and a pointer to the POS-defined echo struct.
Parameters
| Value | Description |
|---|---|
refund_response |
Pointer to the callback function in the POS that will be called with the results of the refund call. If the refund was successful, this struct should should return a result of "refund-received". |
echo_struct |
Pointer to a POS defined struct. Returned in the callback. It can be used to share a POS data struct between the call to the library and the callback from the library in response to the call. |