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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6IjZjZDlkN2Y2OWZiYzg3YWFiNjRkIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc4NzE4NDQ2NCwiZXhwIjoxNzg3MTg0NzY0LCJqdGkiOiIwMjM0ZGMyYzQ2OTQ0NDBmZTlkYiJ9.oiUAJrPLqHj6f4C2S2NGZA9UEo4J7UNwFWWHDwNWXarBmNw_DQbaDkAp8jE_FcP1TmwP9nJweiO90uv3fOBxpD8HEVrUdS_rC4W8kJtaG4zHhp0qdx03xxCKeEnoUOz7x8lhWA2TjcmF4Nsh7LPzhoYMCMIAmBRK1IjJnYLpPln2F3qZUgQ6nwK4lZ691ANXTl9tnqbGoTLWowTDvt4pRa9NPNJYPgewH2e8-rOitPjEnEO9Yn9qK_7kQ1P1bX7FtflHDckyqLKeC3DjR3_mUBBEZa_Dr3Nja_0SkTpCTkYCsl-orJwZVWFbIosOPbx7XybM_QZ2bpaQ9j-8D6snxg (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: 6cd9d7f69fbc87aab64d (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)