How can I implement authentication in a TypeScript Express app?

How can I implement authentication in a TypeScript Express app?

You can implement authentication in a TypeScript Express app using libraries like Passport.js or by creating your own middleware.

What are the steps to set up Passport.js for authentication?

First, install Passport.js and its dependencies. Then, configure the strategy, set up session management, and create routes for login and logout.

Can you show me a code example for setting up a local strategy?

Sure! Here's a basic example:

import passport from 'passport';
import LocalStrategy from 'passport-local';

passport.use(new LocalStrategy(
  function(username, password, done) {
    // Verify username and password
  }
));

What about JWT authentication? How does that work?

JWT authentication involves generating a token upon user login, which is then sent with each request to verify the user's identity.