Node/Express/Mongoose Url-Shortener App

I am newbie in coding and this is my first project. I would be glad to any advices 😄.

Url-Shortener app with Node.js (Express.js + Mongoose) containing CRUD pattern and auth.

Getting started

To get the Node server rinnung locally:

Clone this repo
npm install to install all required dependencies
Install MongoDB Community Edition and run it with mongod
Rename .env.sample to .env, and enter your jwt secret and mongodb connection uri
npm run dev to start the local server

Code overview

Dependencies

express - The server for handling and routing HTTP requests
express-jwt - Middleware for validating JWT auth
jsonwebtoken - The jwt generator used by auth
mongoose - For modeling and mapping MongoDB data to javascript
passport - For handling auth
nanoid - For generating url-frendly id stings

Application Structure

index.js - The entry point to app, defines express server and create connection to MongoDB using mongoose. It also requires config, models and routes.
config/ - The folder contains configuration for passport
routes/ - The folder contains the route definitions to app API.
models/ - The folder contains the schemas definitions for mongoose models
middlewares/ - The folder contains the express-jwt middlewares for auth

Authentication

Requests are authenticated using the Authorization header with a valid JWT. There're two express middlewares in middlewares/auth.js that used to authenticate requests. The required middleware configures the express-jwt middleware using app's secret and will return a 401 status code if the request cannot be authenticated. The payload of the JWT can then be accessed from req.payload in the endpoint. The optional middleware configures the express-jwt in the same way as required, but will not return a 401 status code if the request cannot be authenticated.