### Install SendPulse Node.js Package

Source: https://github.com/sendpulse/sendpulse-rest-api-node.js/blob/master/README.md

Installs the sendpulse-api npm package, which is the SendPulse REST client library for Node.js. This is the first step before using the library in your project.

```bash
npm install sendpulse-api
```

--------------------------------

### Initialize and Use SendPulse API Client in Node.js

Source: https://github.com/sendpulse/sendpulse-rest-api-node.js/blob/master/README.md

Demonstrates how to initialize the SendPulse API client in Node.js using your User ID and Secret. It then calls the 'listAddressBooks' method to fetch address books, logging the result to the console. Ensure you have valid API credentials and a token storage path.

```javascript
var sendpulse = require("sendpulse-api");
/*
 * https://login.sendpulse.com/settings/#api
 */
var API_USER_ID = "USER_ID";
var API_SECRET = "USER_SECRET";
var TOKEN_STORAGE = "/tmp/";

sendpulse.init(API_USER_ID,API_SECRET,TOKEN_STORAGE,function() {
    sendpulse.listAddressBooks(console.log);
});
```

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