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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6ImY1NWFlODNlNTgzZjE0MTMxMDVjIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc2NTExMTQ1MSwiZXhwIjoxNzY1MTExNzUxLCJqdGkiOiJmNmY1YWQxYWUxYzVlZjRiZTA5YiJ9.lBrrkL-dwCx69QQTJinAtXO41NjbKqJ5BX0_3c8otF5FDHea_tj4bs3otPbV84VIpVXbgc9Yd5Kl-mL7mlh6dd_-4qsTZWTqsyxVVZJA9uLkwBQy-FZWezEntPtixsSkwcRq0YbfV-xRIJISYN38a0QREh3JXPg364QHP0xnFk7JuP_NYBIXJQos-QhL8lirKtp9LmbnmcJd2BAn_kmckLwfczw5yCUIBKkVeuKkhz8jj0YWihdkvQq_Etk9wUPsELWRneJg37TnJ7mBiEBAWBJAoEuZ6fJseZbYrtTvCll_NYlF2tEyt2c1UgaTC_tCLOMjPmnzXknXEvqghMTx2A (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: f55ae83e583f1413105c (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)