{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"900250", "target_link_uri"=>"https://lti-ri.imsglobal.org/lti/tools/1813/launches", "lti_message_hint"=>"34154", "client_id"=>"12345", "lti_deployment_id"=>"2"}

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

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/1813/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: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6ImV0WXhRc1RPQVFKMW5uQVhwZ2pHSkdaVGVwQkM2WUlscXBNcnFsV2lkTzQiLCJ0eXAiOiJKV1QifQ.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.rJP3NvUnErrdRNSMNXaW071q5n5AEhlmLCQww-Tu5gnPfauuFEjciHaq18AXeMQVbFOTrWhid5wKt5o5_FKf1HRdwmw9KDpJjzIhoDGVTG8CU4zn66WKFaKsHiZruvtmyiR6USfQEbVzb1kv-IP8Dhz06P-i_mvzhu_RpKq4W5tFO_9whjaEY4ZMJ4lQtbd4APffD3SXluE6773IEMUyoKFz91fYgzVcGBMMFNDsF7Vea-lj8nDAWbzwmOKFyI5mIwpdZrJIfwOvjhOWo5itJ_NW6tHSY8ZhxKhxBDmxOWmwYxeYBVrEoSXPC5JBoCZHUCZSGtgpDZZSxRlbva1aRw (required, opaque value used to maintain state between the request and the callback)

login_hint: 900250 (required, tools and platforms must support a value of form_post)

lti_message_hint: 34154 (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: 634a3f00f635fceb772a (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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