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.eyJ0b29sX2lkIjoyNTc4LCJzdGF0ZV9ub25jZSI6IjJiOGJkY2QwMGZiYzhjYjFiY2Q4IiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNTc4In0sImlzcyI6InRlc3RfcnVieV9yaV90b29sIiwic3ViIjoidGVzdF9ydWJ5X3JpIiwiYXVkIjoiaHR0cHM6Ly9sZWFmZGV2MDYudWNoaWRhLmNvLmpwL3BsYXRmb3Jtcy8xL2FjY2Vzc190b2tlbnMiLCJpYXQiOjE3Nzc4NzIzMTQsImV4cCI6MTc3Nzg3MjYxNCwianRpIjoiY2I2YWZlYzU2YWI0NTkyMzg4MDEifQ.ckONyslOrElxiy5FDETQXi1Uj66IUmTHrbNXPD1vKc59TXDUd5Ca4EsY5-GyUZCoUIHl4jK9rv6RkB2i8S7Ql0aSvelwxpuQRaxAkvkvzk3L8qRhIF1uDjGrMyqeSruyGJ4QmDLUDsI3tkBjMWzVwFzw0oys6Wh1yGZzdtLysm7-HQbfedbm-P6YhxoeLR79-PhU4OY5TqcT5N-oxAQLJ8i9amfA25zgjss5P8KW-e2rpYdcuKUAI1AW2Hcx_8NxY9XApggFZVvmmGkbEtHcuu8Q9n83yZnEDBf2SDI_-_XebHrTi_iYX6vzSOqD_WTr93GrzFTmC5Wz9ZjMT40uew (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: 2b8bdcd00fbc8cb1bcd8 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)