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.eyJ0b29sX2lkIjoyNTc4LCJzdGF0ZV9ub25jZSI6IjljNmY2MGJhMjcxZWIxOTM5NzNhIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNTc4In0sImlzcyI6InRlc3RfcnVieV9yaV90b29sIiwic3ViIjoidGVzdF9ydWJ5X3JpIiwiYXVkIjoiaHR0cHM6Ly9sZWFmZGV2MDYudWNoaWRhLmNvLmpwL3BsYXRmb3Jtcy8xL2FjY2Vzc190b2tlbnMiLCJpYXQiOjE3NzA0OTI2NzUsImV4cCI6MTc3MDQ5Mjk3NSwianRpIjoiZDk2YThkMzNkYWJkZDE0NDYwZjIifQ.YcF04R28ONkj8Omjs2OmfcAIQDTDzoizOmGZL53tlJctHSrWS9RL5m-zvMJGSPd6-vtPWYRism7Bqsht41-Kn1KGrTb5UJgbyVwmT1KaYven1kAMxeq0ZSwGIyWN0EJWZtvlEZtp7D3VWWZ1GE0A2DjAVrYVGq2wt8PIRtlE9fhvU5-kbMBv5Z7Tl5OmKhhFPI0AN2TuFpzHLw9_AeZlluQT92ZMs2aO8SgQKpuuHPPdGhEirc7umJVwr3ytIAicOUOJ68y-A6fFEHPjh9JTj5626_aXF4pNt2UhU-Udw5uTw4SNQcH0TrOkTKEK4xhBLtBDR1oht3j5ks9GJ_vHyQ (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: 9c6f60ba271eb193973a (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)