How to integrate the CardConnect payment with Node JS

This tutorial shows how we can integrate the CardConnect payment gateway within your nodeJs-based projects. We gonna use the Axios npm module to make requests to CardConnect APIs.

Here are simple steps to access the CardConnect APIs and make payments using CardConnect.Authorization

Step 1: Initialize the project with the npm init command. It will create a package.json file in the project root folder.

npm init --yes

Step 2: Install the dependencies of the project, as I mentioned above we gonna use <code>axios</code>, it’s a Promise-based HTTP client. So let’s install it with the below command.

npm install axios

Step 3: We gonna use two APIs, first one is to get a payment auth token and the second one is to charge the customer. copy and paste the below code in a .js file, ex: payment.js file, and run the code.

const axios = require('axios');
const credentials = new Buffer('testing:testing123').toString('base64')
const getAuthTokenForThePayment = async (data) => {
    try {
        const config = {
            headers: {
                'Content-Type': 'application/json',
                'Authorization': `Basic ${credentials}`
            }
        };
        const URL = 'https://fts.cardconnect.com:6443/cardconnect/rest/auth';
        return await axios.put(URL, data, config);
    } catch (error) {
        throw (error);
    }
}

const makeCharge = async (data) => {
    try {
        const config = {
            headers: {
                'Content-Type': 'application/json',
                'Authorization': `Basic ${credentials}`
            }
        };
        const URL = 'https://fts.cardconnect.com:6443/cardconnect/rest/capture';
        return await axios.put(URL, data, config);
    } catch (error) {
        throw (error);
    }
}

(async() => {
    const paymentRequest = await getAuthTokenForThePayment({
        account: '4444333322221111',
        merchid: '496160873888',
        amount: '1000', // Smallest currency unit. e.g. 100 cents to charge $1.00
        expiry: '1220',
        currency: 'USD'
    });
    const charge = await makeCharge({
        merchid: paymentRequest.data.merchid, 
        retref: paymentRequest.data.retref
    });
    console.log(charge);
})();

Step 4: Run the above code with the below command.

node payment.js

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