{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"628135", "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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.Nr3pjcFEa-Yqcx02Bqq1TBy77GW0ipotoyfkNtv1eiBjbL1t-_b0a2O4yd9EDyYsnF-W3BGhpoILm1OjPU6YIbVbfeeTUDqC-3BkRVuyd3fqFf7eeeRiQNrhow791KTpNQTChf4IRC0L_1it32osnP0iCXbQMrGrwXQEX-1cWgx7zIrJ6QlWr_BzmW0iBhbr9P0cXjqv1gUL8tjhvF2bAgViUZyONMvmI-e01w8lxMCZYNhut_BeNK-c06U8xxHAMPu0kjgVaBCudIzyPyfphY1k5CRPUi00qpVwUGdz-WL5PRwy89JkAV9UqmhkgZhOVL-eKjQvy35pSa9M6TcpBg (required, opaque value used to maintain state between the request and the callback)

login_hint: 628135 (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: fd0b4654b47fb20b1342 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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