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.eyJ0b29sX2lkIjozNTM5LCJzdGF0ZV9ub25jZSI6ImZhNzdiZDNiYzQ4NTIyMDlmMzYzIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIzNTM5In0sImlzcyI6IkNHUFRlc3RUb29sIiwic3ViIjoiY2dwMTIzNCIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzM5MTgvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc3MjY3OTc2NywiZXhwIjoxNzcyNjgwMDY3LCJqdGkiOiI5MTkwYTkyNDdlYmZmNDM4NjUyYiJ9.IFnkht5EIMXgPJ3DWoKFvH6TvqyTxdj9CcXW4Zb2Y1UJVYOYjfZF3UGpDsW55eefJmNhYezV5nmzfhcUICkGKCMNPTkKib-J_j2zzXd_VxfPOUF00l01eMmRvbiHkvhd_1YsqUMl-KaOT49p8-NfUMzSqQaLCcadWmxhfF3niwF5Da85cSO-XEqn-JySYiJbe3zIhMU1FeQ-WVNV-OzQFWrcaE2dx5EWaH0x3V6MQTTg-ZTz5FYDWRAOtFgGUxEe5PE2nCPTm8lJD3gqcWzikkwOE0y9J8QLRt0rObEHhxPb2oQ67RFtonpQItv-FUcdA1Ac8UgEIGt3lUjh6fJuAA (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: fa77bd3bc4852209f363 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)