{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"1145564", "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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.sJ8pXyz__kBJBBz1dJ3fGDrPnw01w12CQ2jsvLsX3ttsy0si5xd34Fpuqnoqj18_qjGxxQ5znPDftmqA2uJ7O9diYToFQVa4wXIgBpTYubVsIcVEqjm8e-0J72dq24ePrEWIEFkgQolNpI9U-hBKRenSFYXxo981NqRkRLxGsBPuAXM4mytL5zwjL24fTQMyfW5GLsj7nMyesp07o9bTeO0SDyKssA5RkTKX2m_lbPBz-8uUtXuVZTSDhtwmVBkeNlJHsGeZWltG3F1kMS9ZxBYMy6r7n6QLWamjxi3e_OS_1OsuQh40zWcHXFyN2qN28r8ELFPNMXZh4m6syUB3Lw (required, opaque value used to maintain state between the request and the callback)

login_hint: 1145564 (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: ff3848372cd1ecf3548e (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

Send GET Request