parse jwt tokens in ruby

To parse a JWT token in Ruby, you can use the jwt gem. Here's an example of how you can parse a JWT token:

main.rb
require 'jwt'

token = 'eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c'

decoded_token = JWT.decode token, nil, false

puts decoded_token
231 chars
8 lines

In this example, we're using the JWT.decode method to decode the token. The first argument is the token, the second argument is the key (in this case, we're using nil because the token is not encrypted), and the third argument is a boolean indicating whether or not to verify the token (in this case, we're setting it to false).

The JWT.decode method returns an array containing the decoded payload and header of the token. In this example, we're simply printing the decoded token to the console.

Keep in mind that JWT tokens are sensitive information and should be treated as such. Always use best practices when handling authentication and security in your Ruby applications.