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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6IjE0MjgzZjU4ODllOGQzZmEyYjhiIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc5MTg5NzY4NiwiZXhwIjoxNzkxODk3OTg2LCJqdGkiOiJlZDkxZDdiYTI3MTlmM2Q0NzI3NyJ9.MAVDkYE1kwUmhRh8LQdcCs1Y-NYj2eEfAUtPKnOcP27a3wducS2au0DBGyBPrArE7Xes0SsFQUVOF8nMiWr6i-XIl4bw6cUHf9UVPi4oKZkPlvLpiqzFkTXCNYRuGulZ6llKsIx4ccrbmUKGBvbFNtdsECa3CzUnxb7AufdIbh4lhFYgWD2zIyw9jcQAofhV2nkSjcZY_x2C-2gWxWwBnzGdKUfMr4a36mjDb8uSHalFVlJ0hvVTCcO2BOb6OGo1kPewr4JcAIgFa9Q3ioQB76gSgWSyQeMik12XdjJAGQ1B0dV7xKFgwKW-80RuiMPpTqU2uAqsb-zWtxabSKxu8A (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: 14283f5889e8d3fa2b8b (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)