response_type: id_token (required, the tool must use a value of id_token)

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/2578/launches (required, This URI must exactly match a value pre-registered with the platform)

response_mode: form_post (required, tools and platforms must support a value of form_post)

client_id: test_ruby_ri (required, client identifier valid at the Platform)

scope: openid (required, must contain the openid scope value)

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6ImhLNjI5SDN2TmszZ1Y0NXlPbzI0cFpyUkRYeUlydG0wWUYtdnRaSWhLWk0iLCJ0eXAiOiJKV1QifQ.eyJ0b29sX2lkIjoyNTc4LCJzdGF0ZV9ub25jZSI6IjJkNWE0ZGM1OGViYjg1Yjk5MzNkIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNTc4In0sImlzcyI6InRlc3RfcnVieV9yaV90b29sIiwic3ViIjoidGVzdF9ydWJ5X3JpIiwiYXVkIjoiaHR0cHM6Ly9sZWFmZGV2MDYudWNoaWRhLmNvLmpwL3BsYXRmb3Jtcy8xL2FjY2Vzc190b2tlbnMiLCJpYXQiOjE3ODUzNjEzOTQsImV4cCI6MTc4NTM2MTY5NCwianRpIjoiZmRkMzg4NWI1M2FhMzU5NjRhZTcifQ.JDrDSRYfbTqKkfS6U6a6OdZz8uGfVx0BEJEHtzOVldvezzkfLAI8AgabzMV74SLpcVfY2xn5IBXwv_JKSDnm5Di81rZnmF9VhgImbQqczXcKzmbvVyhK9J0pZi6fKG61hUbycOY_ouB1P1xI3X4hiOO_UVifNoEk6A9XxAqugni9LJ_poaP1NXLJg0DB1pTw_uD43oiMA_jIEdf_CUkK6xmYS_Ra5EUAhZ7lxRG9XG8IEQ268K9_RDl9NQzWIKPndjTu_dRpDO-NpGQBKhH-NJ2Gnmqz5zAPpEelmuVHoHRTcb8kK2eVhXktP1qcOeAhmVlDEcVjd1eeAELnWeFDWg (required, opaque value used to maintain state between the request and the callback)

login_hint: (required, tools and platforms must support a value of form_post)

lti_message_hint: (required, a platform opaque identifier identifying the user to login)

prompt: none (optional, The tool should use a value of none. In the future a re-launch flow may support additional values being used here)

nonce: 2d5a4dc58ebb85b9933d (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)