class Stytch::M2M

def marshal_jwt_into_response(jwt)
  # The custom claim set is all the claims in the payload except for the standard claims.
  # The cleanest way to collect those seems to be naming what we want
  # to omit and filtering the rest to collect the custom claims.
  reserved_claims = %w[aud exp iat iss jti nbf sub]
  custom_claims = jwt.reject { |key, _| reserved_claims.include?(key) }
  {
    'scopes' => jwt['scope'].split(' '),
    'client_id' => jwt['sub'],
    'custom_claims' => custom_claims
  }
end