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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6IjAyOGM4MDY1NGE2YjA5ODQ4ZDljIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc3MjM4ODgwNiwiZXhwIjoxNzcyMzg5MTA2LCJqdGkiOiJjZGE2YTg0ZGE2NTUzZDE4NDcyNiJ9.UYTffwHHbKJ6C5JVvRQriQI55bjIdoVqj9O8026v5Tw5FmLozHrg8PY8mPcHGiukZ-9BuENHI6x21byya1xvV_XFRkd0D269Saddm8QlbFi72Srsijhr4sJzSLHASMtg3ne12bwzJoxojaCVZPNXmIoSJLx7YzFeQrjyLIMmq2HVf7S_6wdlHfH0CSgtnaSkBTLfEzIT83NodXCv1zuhKBnyWFyYGhHfYUc0DaDpXVH04KJYlgRJ0pfyUCwJmAJ0eeonf7BXmfRAMzdkKun2iwHZoSEO3U6ENc9RSlygd4ki6yor-AZ6Wf7i2exVPOruh79uDU-iaHY28C5r5TUTOg (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: 028c80654a6b09848d9c (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)