How to implement Paystack payment integration in Nodejs

Here is a general outline of the steps you can follow to integrate Paystack payment into a Node.js application:

1. Sign up for a Paystack account and obtain your API keys from the Paystack dashboard.

2. Install the Paystack Node.js library by running the following command in your project's root directory:
   

npm install --save paystack

1. Import the Paystack library in your Node.js file:

const Paystack = require('paystack')('your_secret_key');

1. Use the Paystack library to initiate a transaction. For example:

Paystack.transaction.initialize({
  email: 'customer@email.com',
  amount: 10000 // in kobo
}).then(function(body){
  // send the authorization_url in the response to the client to redirect them to
  // the payment page where they can make the payment
  res.redirect(body.data.authorization_url);
});

1. After the customer completes the payment on the Paystack payment page, they will be redirected back to your application's callback URL. At this point, you can verify the transaction using the Paystack library and complete the payment process by marking the transaction as successful. This is just a high-level overview of the process. You can find more detailed documentation and examples on the Paystack website (https://developers.paystack.co/docs/getting-started).