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.eyJ0b29sX2lkIjoyNTc4LCJzdGF0ZV9ub25jZSI6IjhjZjc3Y2RlYTM5MzNhOWRmODFkIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNTc4In0sImlzcyI6InRlc3RfcnVieV9yaV90b29sIiwic3ViIjoidGVzdF9ydWJ5X3JpIiwiYXVkIjoiaHR0cHM6Ly9sZWFmZGV2MDYudWNoaWRhLmNvLmpwL3BsYXRmb3Jtcy8xL2FjY2Vzc190b2tlbnMiLCJpYXQiOjE3ODc3MzgzODksImV4cCI6MTc4NzczODY4OSwianRpIjoiOTY4YjI5OGU3NjhkODI2MmM5NjgifQ.uq53nfc_wkUa_770Jk6JUDj4XfU9YeNDclJynhFvS3Jdp5mS2Dyap8w6kCW6XlGx_eYx30JMY3nUMPJj9MlMQKqJ4NEZZOdoRVD58mDLzYspWwG_SnNFVUPAu1d_MYcncKezXqFtDJD_t-NGypZItu2msDmIYPlDEvzyNeYzn1J_fDeu07k_vK46Grsr-HfbknPw38QZCie67eOttdFPKpl4aKb7AkdWeR2Biughwt9_ceCAMBUVmPq4TiBPh-_HwdmxXAqAIHE7rg1db5WJJVb6IwQh79NkfSf3oq-k1-MXXxcmrRXISzupjysb3FdfO4rR9p2ZpK6sBJrto9WW-g (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: 8cf77cdea3933a9df81d (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)