This project is an example of a web application with user authentication implemented using Passport.js. It supports both local (username and password) and Google OAuth2.0 authentication strategies.

• Local Authentication: Users can register with a username and password. Passwords are securely hashed using bcrypt.

• Google OAuth2.0 Authentication: Users can also log in using their Google accounts via OAuth2.0. This is achieved using Passport.js with the Google strategy.

• Session Management: The application utilizes express-session and connect-mongo for session management. User sessions are stored in MongoDB, ensuring persistence across server restarts.

Open cmd and type

 git clone https://github.com/charlesaurav13/PassportAuthentication

 cd PassportAuthentication

 npm install

Make a .env file and make these variables and put those values.

PORT
GOOGLE_CLIENT_ID
GOOGLE_CLIENT_SECRET
CALLBACK_URL
SECRET
DATABASE_URL

First we have to get Google credentials . To get credentials if don’t already have them go to https://console.cloud.google.com/

1)create a new project

2)Select the project and click credentials and the select OAuth client ID

3)Now Select Web Application in application type.

4)Input your app name or whatever else you like , in Authorized JavaScript origins add this line http://localhost:9000 and in Authorized redirect URIs field add this line http://127.0.0.1:9000/api/v1/auth/google/callback and the click to create .

5)Now copy your Google client ID and Google client secret and paste above in environment variables.

To deploy this project,make sure you are in the same directory of the project

  npm start

  GET /api/v1/auth/login

  GET /api/v1/auth/register 

  GET /api/v1/auth/google

  GET /api/v1/auth/logout

  GET /api/v1/auth/protected

  GET /api/v1/auth/google/protected

MIT

• @charlesaurav13