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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6IjBlNGM0YzNiZmU4OWVkZDBjNDRkIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIyNzIxIn0sImlzcyI6ImRlbW9uLWNvZGUgbWFuZGF0ZWQgcm9jay1vZmYiLCJzdWIiOiJqdXN0IGEgdHJpYnV0ZSIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzMwMTYvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc3Nzc1MzI5MCwiZXhwIjoxNzc3NzUzNTkwLCJqdGkiOiI4ZTIxMDFhYTg3YWM3YzMyZTA5ZiJ9.Yfr_lB3E6phBxmNlNIvmae69G1YBbp5X7ES5LTew6h5YrTo9yZ0G2F78ga1-Gxe8xdN7F1YNMCN3YAf6s8VNwzoUEYklzZrpjEIpBz37dsp8WUfovNJ8OLSxCsp2UUTmoKB9Wa3-tnYUQVeZrAiI35LYt7udgZ6dk7vfTfwWp2htjXLk1aFstE5qSO67gbEg4laD3Qhxa-NiiubwkbBQPFBNfthwCsRZ6zUGY4Ev817sxcIk9qyMGrllCH6tyFc1_WljVRQTo29Y7MtbzxM8Zm1UA90-VoTd9Z71MFR1RLb8AauFEkwZhl_u2oMiDDWLEbQbkGCCawl-WARuKzj5Eg (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: 0e4c4c3bfe89edd0c44d (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)