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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6ImM5ZjQ5ZmYwZTY4ZmI4YThmYmJiIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc3ODE3NjkyNywiZXhwIjoxNzc4MTc3MjI3LCJqdGkiOiJjNjc1OGZmODVmMDdiY2U1MmE0NyJ9.kngmFtMGW89Dc5T5DI3JZNqLdZc9L0rhogld8mjEvMlitVnhRCuvWd6RleTeilms0VHx0gR-Ip8m13eDbdlerOPkBgcWIhiefmf7GuY9Q-5vsGVlaq5rXzXPT_8NJZ9T5l-LzxZZOY25uh1E20K26j-xhRqYvlTkR_9WrUV0eukV0fuqH2won8f2HBdSIumT1jtxhcjy40S7h1fC0Ri-b4DfXovimD6d5sN3Wig8dicH1vkeNXXu-kILSAfAPnAamEB0dqlHULanyQxRzyqXguYeQBDDoHbNPYRjPn7yaGJoE1ztyvckjpH-6L_R2vTE15ZejBcxyfcuKM0T7hIszg (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: c9f49ff0e68fb8a8fbbb (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)