# Backend_JS
All about the backend development in Javascript using Express and Mongoose abstraction layer on top of NodeJs and MongoDb 

1. ### Backend Devoplment Roadmap : [ClickHere](./lec1/README.md)
2. ### Backend Code in Production  : [ClickHere](./lec2/readme.md)
3. ### Connecting Frontend to Backend : [ClickHere](./lec2_1/readme.md)
4. ### Data Modelling for Backend using Mongoose : [ClickHere](./lec4_5/readme.md)
5. ### Professional Backend Project configuration : [ClickHere](./lec6/readme.md)
6. ### How to connect database in MERN with debugging :[ClickHere](./lec7/readme.md)
7. ### Cutom API response and error handling :[ClickHere](./lec8/readme.md)
8. ### User and video model with hooks and JWT :[ClickHere](./lec9/readme.md)
9.  ### How to upload file in backend | Multer : [ClickHere](./lec10/readme.md)
10. ### HTTP Crash Course : [ClickHere](./lec10_1/readme.md)
11. ###  Complete guide for router and controller with debugging  : [ClickHere](./lec12/readme.md)
12. ###  Logic Building | Register controller : [ClickHere](./lec13/readme.md)
13. ### How to use Postman for backend : [ClickHere](./lec14/readme.md)
14. ### Access Refresh Token , Middleware and cookies : [ClickHere](./lec15/readme.md)