alipay-pay-for-402-service

To handle an HTTP 402 Payment Required response, you parse the payment instructions, acquire a paymentProof via the alipay-bot CLI, and retry the original request with attached credentials to fulfill the buyer-side payment flow.

The HTTP 402 payment protocol mechanism signals a client must pay to access a requested resource. It initiates a deterministic flow where the buyer parses instructions, pays via a CLI, and resubmits the request with proof.

You get a paymentProof and retry an original request by invoking the alipay-bot CLI to initiate payment, retrieving the generated proof, and resubmitting the failed request with the proof attached as credentials.

Yes, the alipay-bot CLI workflow supports retries and fulfillment signaling. It enforces strict input validation, secure URL handling, and end-to-end state management to ensure reliable integration and successful fulfillment after payment.

Before starting the 402 payment workflow, you should run the alipay-bot CLI with the check-wallet command to determine wallet readiness and ensure your environment is prepared for the payment initiation and proof retrieval process.

A 402 payment retry may fail after obtaining a voucher if strict input validation or secure URL handling fails. The workflow enforces end-to-end state management, so any mismatch in credentials or proof submission will halt the resubmission.