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Webhook Notification

Laos APIs

Introduction 路 Response Code 路 Checkout 路 Check Deposit Status 路 Deposit WayCode 路 Check Balance 路 Webhook

Overview

Key Information

  • Request Method: POST
  • Data Format: application/json
  • Purpose: asynchronous notification for checkout status updates

Brief Description

1. Notification Mechanism

When a Laos transaction status changes, Vexora pushes the latest result to the merchant callback URL configured in the original request.

2. Merchant Response Requirements

  • Return plain text OK after successful processing
  • The response is plain text and does not require JSON wrapping
  • The merchant should respond within 10 seconds when possible

3. Retry Strategy

If OK is not received, the system retries automatically.

  • Total attempts: up to 8 times within 24 hours
  • Retry intervals: 2s -> 5s -> 10s -> 30s -> 1h -> 3h -> 3h -> 3h

4. Status Confirmation

If the final webhook cannot be confirmed, use the deposit query API to retrieve the latest transaction status.

Request Parameters

Parameter Required Type Description
platFormTradeNo Yes String Vexora platform transaction number
tradeNo Yes String Merchant transaction number
amount Yes String Actual transaction amount
channelCode Yes String Actual payment product code used to process the transaction. This may differ from the value submitted at checkout
wayCode Yes String Actual payment method code used to process the transaction. This may differ from the value submitted at checkout
status Yes String Final or current transaction status code
message Yes String Status description
successTime Yes String Transaction completion time in YYYY-MM-DD HH:mm:ss
timestamp Yes String Current timestamp in milliseconds
sign Yes String Signature for verification

Request Example

{
  "platFormTradeNo": "LAPI202607010001",
  "tradeNo": "LA202607010001",
  "amount": "100.00",
  "channelCode": "QR",
  "wayCode": "LAPNET",
  "status": "0000",
  "message": "SUCCESS",
  "successTime": "2026-07-01 10:30:00",
  "timestamp": "1782878700000",
  "sign": "d41d8cd98f00b204e9800998ecf8427e"
}

Response Example

OK