Lesson 2

.env.example

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+APP_NAME=Chat Application
+PORT=5000
+MONGO_CONNECTION_STRING=mongodb://localhost/chat
+COOKIE_SECRET=learnwithsumitsecret

README.md

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+[![Youtube][youtube-shield]][youtube-url]
+[![Facebook][facebook-shield]][facebook-url]
+[![Instagram][instagram-shield]][instagram-url]
+[![LinkedIn][linkedin-shield]][linkedin-url]
+
+<br />
+<p align="center">
+  <h3 align="center"><a href="https://github.com/learnwithsumit/chat-application/tree/lesson-2">Lesson - 2 - Node.js Chat Application in Express.js, MongoDB & EJS template engine</a></h3>
+
+A complete guide on SASS described in Bangla. Please check the video tutorial here -
+
+[![View on Youtube](http://img.youtube.com/vi/ujLUe1Hgd_Q/0.jpg)](https://youtu.be/ujLUe1Hgd_Q)
+
+<!-- TABLE OF CONTENTS -->
+
+## Table of Contents
+
+- [How to run](#how-to-run)
+- [Contact](#contact)
+
+<!-- HOW TO RUN -->
+
+## How to run
+
+Please follow the below instructions to run this project in your machine:
+
+1. Clone this repository
+   ```sh
+   git clone https://github.com/learnwithsumit/chat-application.git
+   ```
+2. Watch the youtube tutorial on this topic - https://youtu.be/ujLUe1Hgd_Q.
+3. Check out to lesson-2 branch with the below command
+   ```sh
+   git checkout lesson-2
+   ```
+4. Run npm install
+5. Then rename the .env.example file to ".env" and change values as per your need
+6. Finally run the application in development using below command -
+   ```sh
+   npm start
+   ```
+   or
+   You can run it in production mode by -
+   ```sh
+   npm run prod
+   ```
+
+<!-- CONTACT -->
+
+## Contact
+
+Sumit Saha - [sumit@learnwithsumit.com](mailto:sumit@learnwithsumit.com)
+
+Project Link: [https://github.com/learnwithsumit/chat-application](https://github.com/learnwithsumit/chat-application)
+
+Youtube Channel: [https://youtube.com/LearnwithSumit](https://youtube.com/LearnwithSumit)
+
+<!-- MARKDOWN LINKS & IMAGES -->
+
+[youtube-shield]: https://img.shields.io/badge/-Youtube-black.svg?style=flat-square&logo=youtube&color=555&logoColor=white
+[youtube-url]: https://youtube.com/LearnwithSumit
+[facebook-shield]: https://img.shields.io/badge/-Facebook-black.svg?style=flat-square&logo=facebook&color=555&logoColor=white
+[facebook-url]: https://facebook.com/letslearnwithsumit
+[instagram-shield]: https://img.shields.io/badge/-Instagram-black.svg?style=flat-square&logo=instagram&color=555&logoColor=white
+[instagram-url]: https://instagram.com/learnwithsumit
+[linkedin-shield]: https://img.shields.io/badge/-LinkedIn-black.svg?style=flat-square&logo=linkedin&colorB=555
+[linkedin-url]: https://linkedin.com/company/learnwithsumit