The Dynamic QR Code API on Safaricom’s Daraja platform provides a way for businesses to generate QR codes for M-PESA transactions. This allows customers to scan the QR code in the My Safaricom App or M-PESA app to automatically capture the till number and transaction amount, making payments seamless at select Lipa Na M-Pesa outlets. This guide provides instructions for integrating the Dynamic QR API, along with request and response examples.

Endpoint Overview

• Method: POST
• URL: https://sandbox.safaricom.co.ke/mpesa/qrcode/v1/generate
• Authentication: Requires a Bearer token generated via the Authorization API.

Prerequisites

1. Access Token: Generate a token by using the Authorization API.
2. Registered Application: Set up your application on the Daraja platform to access your Consumer Key and Consumer Secret.

Guide to Generating a Dynamic QR Code

Step 1: Set Up the Request in Postman

1. Create a New POST Request:

   • Use POST as the method.
   • Enter the endpoint URL:

    https://sandbox.safaricom.co.ke/mpesa/qrcode/v1/generate
   

2. Add Authorization Header:

   • Under Headers, add:
     • Key: Authorization
     • Value: Bearer YOUR_ACCESS_TOKEN
   • Replace YOUR_ACCESS_TOKEN with the token from the Authorization API.

Step 2: Define the Request Body

In the Body section, choose raw and set the format to JSON. Enter the following JSON payload:

{
   "MerchantName": "TEST Business",
   "RefNo": "Invoice Test",
   "Amount": 1,
   "TrxCode": "BG",
   "CPI": "0708920430",
   "Size": "300"
}

Request Parameters

Step 3: Send the Request

Click Send to submit the request in Postman. A successful request will return a QR code as a base64-encoded string.

Example Response

Upon success, you’ll receive a response similar to the following:

{
    "ResponseCode": "00",
    "ResponseDescription": "The service request is processed successfully.",
    "QRCode": "iVBORw0KGgoAAAANSUhEUgAAASwAAAEsCAYAA..."
}

Response Parameters

Viewing the QR Code

To display the QR code, convert the base64 string from the QRCode parameter into an image. Here’s an HTML example:

<img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAASwAAAEsCAYAA..." alt="M-PESA QR Code">

Important Notes

1. Token Expiry: The access token expires every 3600 seconds, so renew it as needed.
2. Environment: This endpoint is available in both Sandbox and Production environments. Use the Sandbox URL for testing and switch to Production when ready to go live.
3. QR Code Size: The Size parameter defines the QR code dimensions, which will always be a square image.

By following these steps, you can integrate the Dynamic QR API and create a fast and secure payment process for your customers.

I welcome any suggestions, comments, or issues you encounter during implementation.

Happy Coding with M-Pesa Daraja API!