How do I implement JWT authentication in a Rails API?

How do I implement JWT authentication in a Rails API?

To implement JWT authentication in a Rails API, you can use the 'jwt' gem. First, add it to your Gemfile and run bundle install.

What are the steps after installing the gem?

After installing the gem, you need to create a method to encode and decode the tokens, set up user authentication, and protect your routes.

Can you show me an example of encoding a token?

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

How do I protect my routes using JWT?

You can use a before_action filter in your controllers to check for a valid token in the request headers before allowing access to certain actions.