When a cardholder initiates a credit card transaction, the card scheme will send an authorization transaction webhook notification to the Tevau-API platform. After completing internal verifications (card balance, enterprise account balance, risk control rules, etc.), if the enterprise has enabled the JIT (Just-In-Time) Authorization feature, the Tevau-API platform will invoke this interface to send a synchronous authorization request downstream to your enterprise, allowing your enterprise to decide whether to approve the transaction.Downstream enterprises must return an HTTP response within 2 seconds upon receiving the authorization request.Integration Recommendations:Interface Performance: Ensure the callback interface response time is < 1.5 seconds (to reserve network transmission time). Responses exceeding 2 seconds will be treated as a timeout rejection.Decision Logic: The interface should only return APPROVED or DECLINED. Complex approval workflows should be handled asynchronously internally; the synchronous interface must only return the final decision.Logging: It is recommended that downstream enterprises maintain complete logs of both the callback request and response to facilitate reconciliation and troubleshooting.
