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

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/3539/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: cgp1234 (required, client identifier valid at the Platform)

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

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IllITzE2SkxjaldxLWVIbTN5eEozQ3d4eWxhUDhMeEJHZE00N0NjTjJYZk0iLCJ0eXAiOiJKV1QifQ.eyJ0b29sX2lkIjozNTM5LCJzdGF0ZV9ub25jZSI6ImY1ODQ0ZWFmMDkyNzc2MGJjZDZhIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIzNTM5In0sImlzcyI6IkNHUFRlc3RUb29sIiwic3ViIjoiY2dwMTIzNCIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzM5MTgvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc3MDI1OTI5NywiZXhwIjoxNzcwMjU5NTk3LCJqdGkiOiJlN2Q2OTJmNGMyOGI1NjhjYjc2OSJ9.xakDNMCtWlChn6JZ07dWzWBdAxNIG4xikrs12TtDCV0rd-1OOVzo5IbJ7VGGuldUDp4Hf9R6GK3CxVL8V0dl2RZM5iapx9BQ59_ztKM5AmLo9A54IFz1NI0PXT0b9C6yJG9QhNEYuKGVm8gFuIQmUBB28gzqCIPTyQp2GYM8tXXDq23zdzgBNxBwIvvSz6N9Gq8iHOHwtJ6mS-8DOza99LSl6gyuS-DoKeU3HocH5ESmi9TLnz3HY9rhlPYXrI3bU9YCGP89Ep27MWcjM1JvlQ2wdlcFwXJ_lb08q2k9Jq-btAi92_gDvlVTSB9VRbI9ss9QFBVK13VlNSxLfHPKBg (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: f5844eaf0927760bcd6a (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)