@hackler/javascript-sdk/README.md

JavaScript SDK For Hackle

# Hackle JavaScript SDK

## Install

```sh
npm install @hackler/javascript-sdk --save
yarn add @hackler/javascript-sdk
```

## Usage
### Install & Decide the variation
```javascript
const http = require("http");
const Hackle = require("@hackler/javascript-sdk");

const hackleClient = Hackle.createInstance("YOUR_SDK_KEY");

http.createServer((req, res) => {
    const user = {
      id: USER_ID
    }   
    const variation = hackleClient.variation(AB_TEST_KEY, user);
    
    if (variation === "A") {
      // AS-IS Code
    } else if (variation === "B") {
      // TO-BE Code
    }

    res.end(`Hello ${variation}!`)
}).listen(8080)
```

### Records the event
```javascript
hackleClient.track(EVENT_KEY, user);
```
or
```javascript
const event = {
  key: EVENT_KEY,
  value: 5000,
  properties: {
    app_version: "1.0.0",
    first_paying: false,
    item_count: 5
  }
}
hackleClient.track(event, user);
```