{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"498302", "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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.eeO1c28w4smOt6w02wvEgiE7WoGQfCaf1ZwaC06UWCn-hp_6VYKCP_rudPro66hXc5hU3O3Yc6hFPAelFLO9J3k5mel9k0h64No7wfhxf2cnwyu5GFz9gReqdHbYdCwAcdj37C2VoIowdbXhQg6DKbc8qTkRvC6x7fXriwHqERvjelJmE_JkG2cBPiI76Ygpsw0YluuQxu9KvhbI9siqbEOAf7jaFJVGAxnc7W2JhyLxyGC-wcPUQwHqm7P1vQJxzVvW_YGTRSlph-pC0PiQ1qyOFHrPWO6QZwjm63if4B4k-rRXTOKa-QmDRdffXd_sFCpqSFwhv_SpTyZqNaSOAA (required, opaque value used to maintain state between the request and the callback)

login_hint: 498302 (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: 981196badabced9bcd66 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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