square.completePayment completes (captures) a payment.
Example
automations/square-complete-payment.automation.ts
Inputs
Every input accepts a compatible signal. It requiresPAYMENTS_WRITE.
Use the official CompletePayment reference for provider field semantics and limits.
Output
Returns the officialSquare.CompletePaymentResponse response as a codec-safe object. Square integer money amounts remain bigint values.