[Feature]: API guide using jsdoc comments

README.md

@@ -32,58 +32,106 @@
 npm install nodejs-threads
 ```
 
-## Usage
+## API Guide
 
-### Define a worker job that needs to be run in a separate thread.
+<!-- API Docs start here -->
 
-Use the ```defineWorker``` function to define a worker job in ```worker.js``` file (can be named anything). This function takes an async function as argument. It passes the payload received from the main thread to the argument function of the worker thread.
+## Modules
 
-```javascript
-/** 
- * This code will execute in a separate thread
-*/
-const { defineWorker } = require('nodejs-threads');
-// OR
-import { defineWorker } from 'nodejs-threads';
+<dl>
+<dt><a href="#module_nodejs-threads">nodejs-threads</a></dt>
+<dd></dd>
+</dl>
 
+### Functions
 
-defineWorker(async (payload) => {
-    console.log(payload); // Payload from the Primary thread is availbale here
+<dl>
+<dt><a href="#createWorker">createWorker(workerPath, [payload])</a> ⇒</dt>
+<dd><p>Function to create a new worker thread. Calling this function will instantiate a new worker thread
+and return a promise which resolves to the reference to the worker thread. The worker thread will
+be executed in a separate process.</p>
+</dd>
+<dt><a href="#defineWorker">defineWorker(job)</a> ⇒</dt>
+<dd><p>Function to define what should be executed inside the worker thread.
+The async function will be executed as soon as the worker thread is created.</p>
+</dd>
+</dl>
 
-    /*
-    * Do any CPU intensive task here.
-    * The event loop in primary thread won't be blocked .
-    */
-    let result = 0;
-    for (let i = 0; i < payload.range; i++) {
-        result += i;
-    }
-    console.log('COMPLETED');
-    return result;
-});
-```
+<a name="module_nodejs-threads"></a>
+
+### nodejs-threads
+<a name="createWorker"></a>
+
+### createWorker(workerPath, [payload]) ⇒
+Function to create a new worker thread. Calling this function will instantiate a new worker thread
+and return a promise which resolves to the reference to the worker thread. The worker thread will
+be executed in a separate process.
 
-### Create a worker thread
+**Kind**: global function  
+**Returns**: Promise which resolves to the reference of the worker  
+**Throws**:
 
-You can create a new worker thread by simply calling ```createWorker``` function. The first argument is the path of the ```worker.js``` file and you can pass any payload as the second argument. The payload passed will be provided as an argument in the worker callback function.
+- <code>Error</code> If workerPath is not a string
 
-```javascript
+**Created**: 27-DEC-2021  
+**Author**: Karan Raina <karanraina1996@gmail.com>  
+
+| Param | Type | Description |
+| --- | --- | --- |
+| workerPath | <code>string</code> | Path to the worker file |
+| [payload] | <code>object</code> | Payload to be sent to the worker |
+
+**Example**  
+```js
 const { createWorker } = require('nodejs-threads');
 // OR
 import { createWorker } from 'nodejs-threads';
-
 // Inside any async function
 const worker = await createWorker('./worker.js', {
        range: 50000000,
     });
-
 // Attach a listener if you expect any return value from the worker funcion
 worker.on('message', (result) => {
     console.log(result);
 });
+```
+<a name="defineWorker"></a>
+
+### defineWorker(job) ⇒
+Function to define what should be executed inside the worker thread.
+The async function will be executed as soon as the worker thread is created.
+
+**Kind**: global function  
+**Returns**: Returns a promise which resolves to the result of the job  
+**Created**: 27-DEC-2021  
+**Author**: Karan Raina <karanraina1996@gmail.com>  
+
+| Param | Type | Description |
+| --- | --- | --- |
+| job | <code>function</code> | Async function to be executed in the worker |
+
+**Example**  
+```js
+// This code will execute in a separate thread
+const { defineWorker } = require('nodejs-threads');
+// OR
+import { defineWorker } from 'nodejs-threads';
+defineWorker(async (payload) => {
+    console.log(payload); // Payload from the Primary thread is availbale here
+
+    // Do any CPU intensive task here.
+    // The event loop in primary thread won't be blocked .
 
+    let result = 0;
+    for (let i = 0; i < payload.range; i++) {
+        result += i;
+    }
+    console.log('COMPLETED');
+    return result;
+});
 ```
 
+<!-- API Docs end here -->
 
 ## Run tests