Adding authentication to your Flask application
JWT is a popular method for authentication in modern web applications. A JWT is a JSON object that is digitally signed and can be used to authenticate users by transmitting claims between parties, such as an authorization server and a resource server. In a Flask web application, you can use the PyJWT library to encode and decode JWTs for authentication.
When a user logs into a Flask application, the backend verifies the user’s credentials, such as their email and password, and if they are valid, a JWT is generated and sent back to the client. The client stores the JWT in the browser’s local storage or as a cookie. For subsequent requests to protected routes and resources, the client sends the JWT in the request header.
The backend decodes the JWT to verify the user’s identity, grants or denies access to the requested resources, and generates a new JWT for subsequent requests. JWT for authentication allows stateless...
