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

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/3999/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: 123456789 (required, client identifier valid at the Platform)

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

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjJKN1V4R1hBY0RzalczTUNlRkhLdzlTMUJVZ3BHOWlVVFdGenloOXYyTVEiLCJ0eXAiOiJKV1QifQ.eyJ0b29sX2lkIjozOTk5LCJzdGF0ZV9ub25jZSI6ImMzMmJkYTQ0MzM0YTM1MjI2YjE1IiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIzOTk5In0sImlzcyI6IlNvbGlkUHJvZmVzc29yIFRvb2wiLCJzdWIiOiIxMjM0NTY3ODkiLCJhdWQiOiJodHRwczovL2x0aS1yaS5pbXNnbG9iYWwub3JnL3BsYXRmb3Jtcy80MjQyL2FjY2Vzc190b2tlbnMiLCJpYXQiOjE3NzA0NjU5NTYsImV4cCI6MTc3MDQ2NjI1NiwianRpIjoiNjlkMDMyMmY2MTFjNzYwZGMyZWEifQ.c7NNjVBPMAQZyEBoYZ-Gtun0hBiFGeQH6uujTmkCrD1UUxmGT-1ubr4KZgjzrMu-uiKRB8i1EUMZhvha55RbMqY25q8NPbZu-Zc2shcOIxeT0h7eEeS4Tm2UTVtXehhHz4nkNrrfDGKcjrMIUXZCvThf_0Yv_8a6BSZRN9ZMxSoOO1gaA2qj2EK4rxaofD0ZpmT7l8p2nsGHQco7USLkW6dLga2xZRk6eLOP4naVDoQV_Aa4o5T1HLiZcItGnI-3Iw1SeXKPs-120Ul5LWMy0kdTmsvKwK5fp4IeohVJ2-40K0qOqCNTyPT6lbAK6i95u7izUwlKA9lcIbejJvFtsQ (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: c32bda44334a35226b15 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)