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.eyJ0b29sX2lkIjozNTM5LCJzdGF0ZV9ub25jZSI6IjcyMzQ1YzQ2NDhjNmVjNmVlNzk2IiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIzNTM5In0sImlzcyI6IkNHUFRlc3RUb29sIiwic3ViIjoiY2dwMTIzNCIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzM5MTgvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc3OTg0NTUyNCwiZXhwIjoxNzc5ODQ1ODI0LCJqdGkiOiJkMGI2NzM3MGQzMDhjZGJlNzYwOSJ9.1ATnlvh_Wfh6oD-oSpcC1oXEbFVdJMbr5U6Z9u1CBAjUMqvuOgTz209U4iGprBExYWND59zPF7pnykMrV12qTEgC7S6mltsWcLDF8UF6PV274FWQ7bdCzvsI23fruiNq-4OffHoHVlTCFraRE1OASzzzhKVITml7k3tY_4irCgqKi4exqs3CXilVJOQFuNBgNrB_iP3CW-GfcWIDO_hN5hMarxeYmKZ_WR7dRFbZjMAYvZPi3NgwQp1SmPM8cS2_Unp-rjalDk27WlMVSQo5Q00OlQ-uUUfhkh5ZgGXUf7GSPTt0IFaL-Aufjtz-LuO_Lc7nA2wmBpDyGk4jenrF8g (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: 72345c4648c6ec6ee796 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)