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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6ImQ1ZTdjMDkxMTQzYjQzMzNjZTZjIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc3MDU3MTc0MywiZXhwIjoxNzcwNTcyMDQzLCJqdGkiOiI3YmRjZmZlMDBjYTZmM2EwZmNjZCJ9.oOc9-2PAR628YghAdi3Mc6Mjyklujp8UFix7lP9ZQ4Zj3Yj7t_EINSV2IS52zzyWp4oYlsSFBizvkgPU8qbxw8aAyCphO8b6tzqOM4nq8oLWCiTMJj8mE55bvEo4u2sBx9NeKK1ejBvRBfb5-o2Cc-XGGsEpOmbN2PnkH6eoDC_g6ZAbYNa4kRAEnN5xMtd2ODBIKBg2hdS7zIDh6zD5sPYm787JenXLLSztiXfSMw9VVjY5z-FZaSHXkezXBNEiOkfH6iuU33zNY4Fz0uC9_qVpEZ-4MigeqECf-Txs9NHhvQGenK9-fZ4Yq4EU-dLKxH9P3Yc3aJdLvEGw7U4uzQ (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: d5e7c091143b4333ce6c (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)