{"iss"=>"what is an audience?", "login_hint"=>"679466", "target_link_uri"=>"https://lti-ri.imsglobal.org/lti/tools/2721/launches", "lti_message_hint"=>"69072", "client_id"=>"just a tribute", "lti_deployment_id"=>"a long lonesome road"}

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.eyJ0b29sX2lkIjoyNzIxLCJzdGF0ZV9ub25jZSI6ImVmZTZiYWY3ZDc5YjU3ZTY2NWYyIiwicGFyYW1zIjp7ImlzcyI6IndoYXQgaXMgYW4gYXVkaWVuY2U_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.Fp2UZDJaEG1m22pNP_uN3zxxJAZNPQ_O-gXAKZtnxAFiVLEuuDOlfhbm0bZGjfg-SGi-P_jIpun4IlmKe5FLeP7ROAsNwEAh271Pd_JJCmz6jhfdDfJUST1IaigQrwcCZF0Efcwd2JM5MZAxRJE_m3ElbJroHeEvG-_oWknOpW-v_q_2Fyr_vnLCjYpvg5wWWOWwNKHL4lfsPYfNPyRSedD-63FL3U3tb_a9nLnJyI0S936SvZEwNiuGH4SbsGBbEDM4q_nRIGy4Mx8wOHk_SFqCfRLL8C06HFT8DwDlWciw8ov6sGE0yrsjqfXGO2biVTiNBzklUf5iDqpu-PFrrg (required, opaque value used to maintain state between the request and the callback)

login_hint: 679466 (required, tools and platforms must support a value of form_post)

lti_message_hint: 69072 (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: efe6baf7d79b57e665f2 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

Send GET Request