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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6IjY2ZWYwOGE2ZjQ4YjkxZDc0ZTI5IiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc1MTM2OTc1OCwiZXhwIjoxNzUxMzcwMDU4LCJqdGkiOiI1MDE0MmQ0ODBjNjY4ODdlODkxNSJ9.DGNjLth3LN4Mg8EFU3-88Sgta7ryKCUVxxqx_8DMNUxVinSaTysp4rAtJA23HeJ2J_en74rzLmu_k-hbPqDNHU9pXQ-Yl77lQ1231d9kspRStPyA6yYuKUoozGbbdF2sAdQDQsOxKYok3vh-yS13COY_J2WIGB0Z4FQOTDw2ZAwtL6mrwgu-tnyKSHqfGg0QhNPzqzZpG_Igp5P7cP3jnn_ECImN6SgYZL2a5SUUbu1Zr6wBA10X9qLM81Nv0yCcyarXKqVbX72adLGZT2NL9SKMpfbqgIbRI1MaCQxyRRZhmCZCc-oz0HUZUtVCfsXMiSzVdz5QMnR2RbJsgFSe7Q (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: 66ef08a6f48b91d74e29 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)