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

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/2721/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: just a tribute (required, client identifier valid at the Platform)

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

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6ImY4YkQtUElGNm9FQmlueVBGSnRVT0k0d3VTbXBQU1VaWXV0Z01fV3FEUEkiLCJ0eXAiOiJKV1QifQ.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6IjJkZWRhODE2Y2Y3YzU1YTM1OTYzIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc0Njc4MDk2MCwiZXhwIjoxNzQ2NzgxMjYwLCJqdGkiOiI3M2NiZjFlMDJjMzdjNjFiODRkYSJ9.Y0_pzMP0OYlXym1ixBushofrJjtnAyNJyvm5I7k8sQIek3yHmWppZJXQ9sU-5AMXqEO8KS5VNhQMRh9nsLoeh9A8k6PXSxlhHeyt4revfU7H-JQg2KFEJpLQv9AMSgOlxiYTrjtRP7GXFSnu5WvC7HrZ_rd7s7-xufuT0XqffhUD6agZvWJu-sjrZzPD7lN0onh7v5uKyJ0zQJpFP9NZ8H0AEsmZY3n0MK0COQLJX56kYbj7COyyAu_z2t_fGffrJd-rDC0y_a9BQ6Qy80ZdwojA4IR67ZutrFc57KIyIcD8nDM79FxtJrxb7cWwDTAHbg-Co9KKiXwfsFW4zDZi-Q (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: 2deda816cf7c55a35963 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)