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20 lines
726 B
Markdown
20 lines
726 B
Markdown
# Generate A Signed JWT Token
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The [`jwt`](https://github.com/jwt/ruby-jwt) gem is a Ruby library for
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encoding and decoding JWT tokens. You can create a signed JWT with the
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`#encode` method by specifying a secret and a hash algorithm.
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```ruby
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payload = { id: 1, email: 'user@example.com' }
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secret = Rails.application.credentials.secret_key_base
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token = JWT.encode(payload, secret, 'HS256')
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```
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This will create a JWT token that contains some JWT headers, application
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data, and an encrypted secret that signs the data. This can be passed to and
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from your client app as a way of identifying and authenticating a user.
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See the [`jwt-ruby` docs](https://github.com/jwt/ruby-jwt) or
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[jwt.io](https://jwt.io/) for more details.
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