{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"435121", "target_link_uri"=>"https://lti-ri.imsglobal.org/lti/tools/1991/launches", "lti_message_hint"=>"37230", "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/1991/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: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6InRZQVlDbVFyWWRJaDdPVjdJQVI0Qml3YUJQNDBsX3gxazlYSDNoRTdOcFEiLCJ0eXAiOiJKV1QifQ.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.dYI5wEHOChIAh_SWbiZFosXOhEs1Xf8R0tyMG75OAdOWEenjnisCGbt2qm1QOacPrd56xg7g1bRpFl-ccb5jT5h9nFCdWTYSMDbwDysga2WSatIH7Uy5YkIjknYZY_nCa2pn3aoGtj5kSemh9LFC0ZY0lJhz57Wf8HF6v-fVdrinMZAwcjpqctcOAsZDxR79io6g163p5liYmhglBH4ZMcT2LsPXCE4lWrVbuwj3lft7kxNESm2aYOivMG5VNfng2rrrWOKfdXa5gfbj3SZs5ni37M8cu2ypCnAN4QvNkI9185EqDxSC0LBPGkIRvH8QGxQuJ216lw-zES1khYJ2Tw (required, opaque value used to maintain state between the request and the callback)

login_hint: 435121 (required, tools and platforms must support a value of form_post)

lti_message_hint: 37230 (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: c9a0403c5ac4489847fe (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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