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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6IjA2MTA5NjcwZWNjNTUwNDFmN2UxIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc4MDA4ODY5NiwiZXhwIjoxNzgwMDg4OTk2LCJqdGkiOiI3YWRlNmNjNzAyMWUzMjc0NmMxZSJ9.c4CFRsOUk3ri2Tx0RW-aIq5PLjkv6C6LH8yOXA1jWv9lK48q7A5aqU-Ayts88QM94zlqEUP3sbw-s_xYGrIBd73IuM6_uZlhAjQU299fa_IjDCUbX0mRi_xDDste2BHhY2TtsrgW08zuN6hsaZusMefUkNe31yaKZDnhYRvXgJbxlcMfUeNIclCpMnc6HHEfwlnguBdW6dunk4MMLscG5I6HXHJKZvMCFmwvvIa_A4MHNri2_wwgO_Cck2G5J5lwQXKaGjZ45VLLNNW7sHAbOQItisc7cx1alF2tN72oVu614CfcJI-su61bBJ0l0K_3pEnGXrLXOEgx2HbLMFjP-A (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: 06109670ecc55041f7e1 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)