{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"543499", "target_link_uri"=>"https://lti-ri.imsglobal.org/lti/tools/2292/launches", "lti_message_hint"=>"59394", "client_id"=>"12345", "lti_deployment_id"=>"1"}

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

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/2292/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: 12345 (required, client identifier valid at the Platform)

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

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IkNyaDU5SWN6YTBicWd3UmNZSjk1ckJCN3laMUlrNWdMSXRTNUl5TmZqclkiLCJ0eXAiOiJKV1QifQ.eyJ0b29sX2lkIjoyMjkyLCJzdGF0ZV9ub25jZSI6IjAzNGJjN2IyODFkZjQzZjQyNzE1IiwicGFyYW1zIjp7ImlzcyI6Imh0dHBzOi8vbHRpLXJpLmltc2dsb2JhbC5vcmciLCJsb2dpbl9oaW50IjoiNTQzNDk5IiwidGFyZ2V0X2xpbmtfdXJpIjoiaHR0cHM6Ly9sdGktcmkuaW1zZ2xvYmFsLm9yZy9sdGkvdG9vbHMvMjI5Mi9sYXVuY2hlcyIsImx0aV9tZXNzYWdlX2hpbnQiOiI1OTM5NCIsImNsaWVudF9pZCI6IjEyMzQ1IiwibHRpX2RlcGxveW1lbnRfaWQiOiIxIiwiY29udHJvbGxlciI6Imx0aS9sb2dpbl9pbml0aWF0aW9ucyIsImFjdGlvbiI6ImluZGV4IiwidG9vbF9pZCI6IjIyOTIifSwiaXNzIjoiUE9DT0JMRGVsaXZlcnlQbGF0Zm9ybTAwMSIsInN1YiI6IjEyMzQ1IiwiYXVkIjoiIiwiaWF0IjoxNzYyODM1OTczLCJleHAiOjE3NjI4MzYyNzMsImp0aSI6ImM0YTQxM2ExZjY2YzI0N2QwMzljIn0.COEPwQIdmB_rNiNcqlyrJlkn5p2Fjgp6i8iWzFGzYNjTJwPPFxmSXPQtcDMLPAlw9lDFoK9IW49Ovd3WHMDlcn88mM9mZC5dDui940FU-grGY1gust7cPw27h4dJ9_jusLKQBJuVJoXpmPJj5cVq1GQdTiuM5P_LYZ6EW5ycwilWfjBTaK0UrNF8PKWdeFhBI11JlmtdQPWDYDBmojiN_E0pYEKb3xZwmf5pZd8omCAS89akPUqySSqhE4T8A7OS1FXovzQSWX3VDORQuA70ZoqhhUDXmawqgnQ09BL3-NGDSxJPIi5fK3VwOzEJ_4CW63o8RDugXIWoys_ONBiCKA (required, opaque value used to maintain state between the request and the callback)

login_hint: 543499 (required, tools and platforms must support a value of form_post)

lti_message_hint: 59394 (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: 034bc7b281df43f42715 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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