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.eyJ0b29sX2lkIjozNTM5LCJzdGF0ZV9ub25jZSI6ImZlZWZmM2ExZmJhYzIyZGQwYWE1IiwicGFyYW1zIjp7ImNvbnRyb2xsZXIiOiJsdGkvbG9naW5faW5pdGlhdGlvbnMiLCJhY3Rpb24iOiJpbmRleCIsInRvb2xfaWQiOiIzNTM5In0sImlzcyI6IkNHUFRlc3RUb29sIiwic3ViIjoiY2dwMTIzNCIsImF1ZCI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmcvcGxhdGZvcm1zLzM5MTgvYWNjZXNzX3Rva2VucyIsImlhdCI6MTc3NzIwMjgxOCwiZXhwIjoxNzc3MjAzMTE4LCJqdGkiOiI1ZmY1YzZiN2FiMDg1ZTYyNDYwNiJ9.EzTH7-mArHou9YIkw5logKAEPjt-eOagVo5hDYiB64EzITU7bX01qj7WA6Y-4MgznyYeBwyVdBBbKCQo0uvT2FUReZirfFT7inS13wZTz7rg8vbADzCInpBDFQ5ZYIxw-4cUSusjFGovvNHEKz3p1pGBAEI2FiQebdWxoDoH0TMs2H_UH0dYm_B60fecL-PlGx8Fo0X8l39GNMNlg27VW1xfK-3_MzwVrp3pzI_geupsi-7g_5VZckznMKzMpsyLPtVG9_5phEdWLcxDt12d5wP4t6NxvdVczD6lBA5VDOsvzqcGcHayUzi757T5cBK6NwjYR7FQIKD4KXGvaYtEyA (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: feeff3a1fbac22dd0aa5 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)