JWT

Issue and verify JWTs for authenticated sessions.

This page documents the current Ruby port behavior. Ruby uses snake_case option names and auth.api method names; HTTP paths and JSON keys keep the upstream wire shape where implemented.

Configure

config/auth.rb
require "better_auth"

auth = BetterAuth.auth(
  secret: ENV.fetch("BETTER_AUTH_SECRET"),
  base_url: ENV.fetch("BETTER_AUTH_URL", "http://localhost:3000"),
  plugins: [
    BetterAuth::Plugins.jwt(jwt: { issuer: "https://auth.example.com", audience: "api" })
  ]
)

Usage

server.rb
issued = auth.api.get_token(
  headers: { "cookie" => request.env["HTTP_COOKIE"] }
)

verified = auth.api.verify_jwt(
  body: { token: issued[:token], issuer: "https://auth.example.com" }
)

signed = auth.api.sign_jwt(
  body: { payload: { sub: "manual", aud: "api" } }
)

jwks = auth.api.get_jwks

Routes

MethodPathRuby API method
GET/tokenauth.api.get_token
GET/jwksauth.api.get_jwks

Options

Current Ruby options accepted by BetterAuth::Plugins.jwt:

  • disable_setting_jwt_header
  • jwt
  • define_payload
  • get_subject
  • expiration_time
  • issuer
  • audience
  • sign
  • adapter

Support Notes

  • The examples above are based on Ruby plugin source and tests in packages/better_auth.
  • If an upstream section is not represented here, treat it as not yet documented or not yet supported by the Ruby port until the matching Ruby implementation exists.
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