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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6ImYyMmNmZTIzNzNmMTQ5ZTlmYWRjIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTczODk4MzM4MywiZXhwIjoxNzM4OTgzNjgzLCJqdGkiOiJkMzY1YjI3YTIyMjdiZWM2Nzg4YSJ9.ShNFQuDJpoLi36fP5veptRzvXTKBdkMlp4VaKHP-P4NyFT909qH8Wq6fdgmskdN02D06pNGlVTOYXRJXhWOiORZp2Ufl9jE2NMKfUTg71-lXI61GWrc5RI-X5JZFWsHmVEYFjzT_xh9kEWRTmwRmyeNZeJPGIV7q-aaTz5wQ2i9LRLPiqJyAHHOYlABkYYxDq0Z4qzwpz3NMW5ERIJjL4uq8uy5yt7i8fOCNkXycy7tKeziAY5jYbxtVWmlbdC3gbAObP9l2pSeNCjJDbMnFziGjkKMlow65bIHHa0m3jJFtZh9y-8xsNa7yIC4MkQxSAE29dAo9M-14SKVZzg8zdg (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: f22cfe2373f149e9fadc (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)