response_type: id_token (required, the tool must use a value of id_token)

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/3539/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: cgp1234 (required, client identifier valid at the Platform)

scope: openid (required, must contain the openid scope value)

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IllITzE2SkxjaldxLWVIbTN5eEozQ3d4eWxhUDhMeEJHZE00N0NjTjJYZk0iLCJ0eXAiOiJKV1QifQ.eyJ0b29sX2lkIjozNTM5LCJzdGF0ZV9ub25jZSI6IjgyZjU1NzViODJlNDc3Mjk5YWEzIiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIzNTM5In0sImlzcyI6IkNHUFRlc3RUb29sIiwic3ViIjoiY2dwMTIzNCIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzM5MTgvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc4MjQzNTA3MywiZXhwIjoxNzgyNDM1MzczLCJqdGkiOiJjYjZlODIzM2IxNDgxZjAwZjY0YyJ9.lA7UbzgxWHDL8cKj2482qV-OuW_88NMsSCBB4x5sMaPsnXbu8Qtd_p8Mg96m_QWQ3zlbcwrpTn11VYamUD1O5smgI8noyD3MJoIvtW1FMRmd9HO1z_jLQ8mWbATDp6zCqL4F9l-ylj17K8ZFxWgRZXkuIr1qDjmjHnPloW-M4mkvDm5dWjlPnvx32BLATS9RtrHOjStNdDgDHT9ppNIdTCLKjr3tGeDl9D57YyrcNd-uoRIEHOZlpJQq5xXaN4PJfxTbpgXbstgjlMV1HN83MYHqRoFiSSgvhhaXclGmImXdVEzHNwvVlbwPHTZP49h8dbNqd1PMLyoZyEHn4rfaBw (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: 82f5575b82e477299aa3 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)