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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6IjUzMjk5Zjk0YTBjZWM4YTEwNzQ5IiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc2NzA2NTE4NCwiZXhwIjoxNzY3MDY1NDg0LCJqdGkiOiIxZWEyZWQwOTliNThhOGJmNDk4ZCJ9.Xkz1bQqGQF8T9AZjZSTach-RMCzEkyEh4E4-OgPLIR5jbK1Gp7Wapu4mznsTuMRjoyatoMZ-J8IM_sZ6cEVak7UUSZ4fKQk3KNgu7lY6ibTGWJOAHVCslDX_aJ00n1AJuhGPpB3VuHeiottdoe58JqUOfU4Qoy7jYMdHOFaACDIV5mpAiPGfhTU-qrL1b2om6TObGN44-FA-qjohQsdIgp9MpGFJ_qJhG-BrE4j06UJj8-FlkgRjX9UWfHdoZbQCJ4UpvDgQbQh9Hez610CMjnwQTCODScvdf9WqrK3OVo_HELIi4dsavuikQmcr8fa52n2CWOIrk5tOvDv_V-uKdw (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: 53299f94a0cec8a10749 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)