LINE Pay API v3 Implementation

This package implements LINE Pay API v3 in Node.js.

Packages Used:

• crypto (built-in)
• node-fetch
• dotenv

Usage

1. Download the package

npm i line-pay-api-v3

2. Create a .env file

CHANNEL_ID=your_channel_id
SECRET_KEY=your_secret_key

3. Code Example

1. Instantiate LinePay class

Set isProduction to false for using LINE Pay Sandbox

import LinePay from "line-pay-api-v3";
import { config } from "dotenv";

config();

const linePay = new LinePay({
  channelId: process.env.CHANNEL_ID,
  secretKey: process.env.SECRET_KEY,
  isProduction: false,
});

2. Merchandise Infomation Example

const merch = {
  amount: 121200,
  currency: "TWD",
  orderId: "202109181134_b4d5a496-60aa-4c77-a250-7f5b971f688b",
  packages: [
    {
      id: "1",
      amount: 121200,
      products: [
        {
          id: "A2638",
          name: "iPhone 13 Pro Max 256 GB",
          imageUrl:
            "https://store.storeimages.cdn-apple.com/8756/as-images.apple.com/is/iphone-13-pro-max-gold-select?wid=470&hei=556&fmt=png-alpha&.v=1631652956000",
          quantity: 3,
          price: 40400,
        },
      ],
    },
  ],
  redirectUrls: {
    confirmUrl: "https://www.apple.com/tw/shop/buy-iphone/iphone-13-pro",
    cancelUrl: "https://www.apple.com/tw/iphone-13-pro/",
  },
};

3. Await response

const resp = await linePay.request(merch);
console.log(resp);

4. Results

{
  returnCode: '0000',
  returnMessage: 'Success.',
  info: {
    paymentUrl: {
      web: 'https://sandbox-web-pay.line.me/web/payment/wait?transactionReserveId=SWFvMDFnaFJwYkY0djY5b1VIUWEvK1g4OU5FVUdzVHg3cGFqS2JBNkEwOHNGMzY5OU9Qc3hnSmVsaGNES0QyVg',
      app: 'line://pay/payment/SWFvMDFnaFJwYkY0djY5b1VIUWEvK1g4OU5FVUdzVHg3cGFqS2JBNkEwOHNGMzY5OU9Qc3hnSmVsaGNES0QyVg'
    },
    transactionId: 2021091900690059800,
    paymentAccessToken: '407765261711'
  }
}

4. Resources

• LINE Pay API v3 Documentation

5. Contact

if you have any suggestion or question, please do not hesitate to email me at [email protected]