khalti-epayment

Khalti e-Payment Checkout Library

This library provides a convenient way to integrate Khalti e-Payments into your web applications.

Installation

npm install khalti-epayment

Usage

import { createKhaltiInstance } from "khalti-epayment";

const khalti = createKhaltiInstance({
  env: "sandbox", // Use 'production' for live environment
  secretKey: "your_khalti_secret_key",
});

// Initiate a payment
const initiateResponse = await khalti.initiatePayment({
  return_url: "https://example.com/payment/",
  website_url: "https://example.com/",
  amount: 1300,
  purchase_order_id: "test12",
  purchase_order_name: "test",
  customer_info: {
    name: "Khalti Bahadur",
    email: "[e-mail]",
    phone: "9800000123",
  },
  amount_breakdown: [
    {
      label: "Mark Price",
      amount: 1000,
    },
    {
      label: "VAT",
      amount: 300,
    },
  ],
  product_details: [
    {
      identity: "1234567890",
      name: "Khalti logo",
      total_price: 1300,
      quantity: 1,
      unit_price: 1300,
    },
  ],
  merchant_username: "merchant_name",
  merchant_extra: "merchant_extra",
});

// Lookup payment status
const lookupResponse = await khalti.paymentLookup({
  pidx: initiateResponse.pidx,
});

API Reference

createKhaltiInstance(config)

config

• env: "sandbox" or "production"
• secretKey: Your Khalti secret key

Returns: An object with the following methods:

• paymentLookup(request)

  • request: pidx (Payment index)
  • Returns: Payment lookup details

• initiatePayment(payload)

  • payload: Payment initiation data (refer to Khalti documentation)
  • Returns: Payment initiation response

Error Handling

The library uses an awTry utility function for robust error handling. See the code for details on how to handle errors in responses.

Contributing

Contributions are welcome! Please follow these guidelines:

1. Open an issue to discuss proposed changes.
2. Fork the repository and create a pull request with your changes.
3. Include tests for any new functionality.

License

MIT