Capture an authorized payment
A capture describes the process of how merchants capture funds for an authorized payment. A capture is the second part of a two-part payment flow, and occurs after an authorized payment is finalized. Finalized payments have
kind set to
authorization. When a merchant wishes to capture the funds on an authorized transaction, Shopify sends a capture request to a payments app, and the app can resolve or reject it.
- The merchant clicks to capture the authorized payment.
- Shopify sends a backend request to the payments app, specifying the capture request.
- The app replies with a
201and an empty response body.
- The app finalizes the capture using the
- Shopify updates the payment status.
Initiate the flowAnchor link to section titled "Initiate the flow"
A capture can only be performed when the payment initiated by Shopify has a
kind property with a value of
authorization. With an authorization, you place a hold on funds and then reply to Shopify's capture request with the
captureSessionReject mutation to accept or reject the capture of funds respectively.
The capture flow begins with an HTTP POST request sent from Shopify to the payments app's capture session URL provided during app extension configuration:
Shopify must receive an HTTP
201 (Created) response for the capture session creation to be successful.
If the request fails, then it's retried several times. If the request still fails, then the merchant needs to manually retry the capture in the Shopify admin.
Request headersAnchor link to section titled "Request headers"
||The permanent domain of the merchant's shop. Can be used to identify which shop is initiating the request.|
||The unique request ID used to track specific requests for troubleshooting purposes.|
||The API version selected in the payments app configuration. The version selected defines the response expected by the payments app.|
Request bodyAnchor link to section titled "Request body"
||Unique identifier for the capture attempt. Used as the idempotency key. Assume that requests with a given ID are identical to any previously-received requests with the same ID.||
||Identifies the capture when communicating with Shopify (in GraphQL mutations, for example).||
||The ID of the authorized payment that is to be captured.||
||The amount to be captured. The value is always sent using a decimal point as a separator, regardless of locale.||
||The three-letter ISO 4217 currency code.||
||Indicates whether the capture is in test or live mode. The ||
||The IETF BCP 47 language tag representing the language used by the merchant.||
||A timestamp representing when the capture request was proposed.||
Resolve a capture sessionAnchor link to section titled "Resolve a capture session"
After you've successfully processed the capture request, you can resolve it by using the
id argument corresponds to the
gid of the capture.
Reject a capture sessionAnchor link to section titled "Reject a capture session"
If you don't want to process a capture request, then you should reject it. You might want to reject a capture if authorization has expired or if you suspect that the request is fraudulent or high risk. You should only reject a capture in the case of final and irrecoverable errors. Otherwise, you should re-attempt to resolve the capture.
You can reject a capture using the
As part of the rejection, you need to include a reason why the capture was rejected as part of
CaptureSessionRejectionReasonInput.code is a
CaptureSessionStatusReasonRejectionCode, which is an enum of standardized error codes.
CaptureSessionRejectionReasonInput.merchantMessage argument is a localized error message presented to the merchant explaining why the capture was rejected.