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Webhook Endpoint

You should configure your webhook endpoint to receive POST requests from Propaga. The webhook will send the paid transaction notification data in JSON format. Please contact us to set up the webhook.

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Payload Structure

Here’s an example of the webhook payload you’ll receive: 
{
  "transactionId": "671f75a4-f145-4f4b-82ff-4eaf0fd1e5aa",
  "cornerStoreId": "57b9d911-1c6e-45c0-be98-bfaeec8d9cf8",
  "wholesalerTransactionId": "bd0880c6-45a7-4998-b30f-65f91f28956d",
  "totalAmount": 1000,
  "interest": 200,
  "totalAmountWithInterest": 1200,
  "paidDate": "2024-01-01T00:00:00Z",
  "status": "paid"
}

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Payload Fields

FieldTypeDescription
transactionIdStringThe Propaga’s ID of the transaction.
cornerStoreIdStringThe ID of the corner store.
wholesalerTransactionIdStringThe ID of the transaction in the wholesaler system.
totalAmountNumberThe total amount of the transaction.
interestNumberThe interest of the transaction.
totalAmountWithInterestNumberThe total amount of the transaction with interest.
paidDateStringThe date when the transaction was paid.
statusStringThe status of the transaction.

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Handling the Webhook

Here’s an example of how to handle the webhook in different programming languages: 
app.post('/webhook/paid-transaction-notification', async (req, res) => {
  try {
    const paidTransactionNotification = req.body;
    
    // Process the paid transaction notification data
    await processPaidTransactionNotification(paidTransactionNotification);
    
    // Respond with success
    res.status(200).json({ status: 'success' });
  } catch (error) {
    console.error('Error processing paid transaction notification:', error);
    res.status(500).json({ status: 'error', message: error.message });
  }
});

async function processPaidTransactionNotification(paidTransactionNotification) {
  // Validate the paid transaction notification
  console.log(`Processing paid transaction notification: ${paidTransactionNotification.id}`);
  console.log(`Status: ${paidTransactionNotification.status}`);
  
  // Process each transaction
  console.log(`Transaction ID: ${paidTransactionNotification.transactionId}`);
  console.log(`Corner Store ID: ${paidTransactionNotification.cornerStoreId}`);
  console.log(`Wholesaler Transaction ID: ${paidTransactionNotification.wholesalerTransactionId}`);
  console.log(`Total Amount: ${paidTransactionNotification.totalAmount}`);
  console.log(`Interest: ${paidTransactionNotification.interest}`);
  console.log(`Total Amount With Interest: ${paidTransactionNotification.totalAmountWithInterest}`);
  console.log(`Paid Date: ${paidTransactionNotification.paidDate}`);
  console.log(`Status: ${paidTransactionNotification.status}`);
}

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Best Practices

  1. Verify the Webhook Source: Implement security measures to verify that the webhook is coming from Propaga.
  2. Implement Idempotency: Store the referenceNumber to avoid processing the same conciliation multiple times.
  3. Handle Errors Gracefully: Implement proper error handling and logging to track any issues with webhook processing.
  4. Respond Quickly: Your webhook endpoint should respond as quickly as possible. If processing takes time, handle it asynchronously.
  5. Validate Data: Always validate the incoming data before processing it.