How do I set up JWT authentication in a Rails application?

How do I set up JWT authentication in a Rails application?

To set up JWT authentication in a Rails app, you'll need to use the 'jwt' gem. First, add it to your Gemfile.

What are the steps after adding the gem?

After adding the gem, run bundle install. Then, create a method to encode and decode the JWT tokens.

Can you show me an example of encoding a token?

Sure! You can use JWT.encode(payload, secret_key) to encode a token, where payload is your user data and secret_key is your application's secret.

How do I handle token expiration?

You can include an expiration time in your payload, like exp: Time.now.to_i + 4 * 3600 for a 4-hour expiration.