About Lesson
Lesson Notes
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Setting Up the Environment:
- Choose the backend technology that best fits your needs (e.g., PHP, Node.js, Python).
- Install required libraries and dependencies for the chosen stack, such as API clients for Mpesa (e.g., Guzzle for PHP or Axios for Node.js).
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Creating the Payment Gateway Backend:
- Initialize the Payment Gateway: Set up routes for handling payment requests, including payment initiation (STK Push) and payment confirmation (callback URL).
- Generate Access Tokens: Use the OAuth API to authenticate and obtain an access token for making requests to Mpesa’s API.
- STK Push Transaction: Implement the STK Push logic by sending payment requests to the Mpesa API. Ensure to handle essential parameters like BusinessShortCode, Password, Timestamp, Amount, PartyA, and PartyB.
- Payment Confirmation: Implement logic to receive a response from Mpesa confirming the payment status and handle different scenarios (success, failure, or pending).
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Frontend Development:
- Design a simple payment form that collects user payment details (e.g., mobile number and amount).
- Display payment status and response messages to users in a user-friendly manner.
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Error Handling and Testing:
- Implement error handling for failed payments or invalid input.
- Use Postman to simulate and test the payment gateway, ensuring that all endpoints are working as expected.