{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"515795", "target_link_uri"=>"https://lti-ri.imsglobal.org/lti/tools/1916/launches", "lti_message_hint"=>"36831", "client_id"=>"stem_scale_7984546158", "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/1916/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: stem_scale_7984546158 (required, client identifier valid at the Platform)

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

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjRCeENkRzBMTVRud2QwWGRpSTFQWHdCMnlGZFdRNVJIZGh0SmlkYTMydHMiLCJ0eXAiOiJKV1QifQ.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.oaik9i0v2SLNrKZAdacSiYmYBZrUOtzVwOG8PuY1lSdSwBmP4yK8clDvzOa6Y5Zj0GiePa_uap7VtdV-TGHWdmix4GFndH_YtnHyc7FtTLH4zfgAQszLInOhHkC0nPz5dJtkww4qyNXMMhy7NnyZ9Bi0u7p7EHGtztm2Vdd-4t0AUbYxiVTDuYVNmkyORVegMglLChbeY-uKWjoIxkC5VsWqni0F6ozldelqB7Lt9RkRaSXVLmnrrDNcIt9eKHjaVkt5R5SbAPLXEB2hHmncrO6Q6Ls6pE_-kO-SK5WEKWbPnwixwYuaGo_uLOYb60lAny12Wu_spX1HFH3XvUPmpA (required, opaque value used to maintain state between the request and the callback)

login_hint: 515795 (required, tools and platforms must support a value of form_post)

lti_message_hint: 36831 (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: cc23facf098dacd9b325 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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