{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"771005", "target_link_uri"=>"https://lti-ri.imsglobal.org/lti/tools/1964/launches", "lti_message_hint"=>"37039", "client_id"=>"Lrth Test", "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/1964/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: Lrth Test (required, client identifier valid at the Platform)

scope: openid (required, must contain the openid scope value)

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IktKTFFrSmU2a2NlOXJianBjSHhiVjFXc21Fdi16dHdESFp0cE83VHBvT0EiLCJ0eXAiOiJKV1QifQ.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.VButbbEesa2bp1WCUL3C4JI-iMHLZ_wYsEZjWiRbGgvy5Ln_4eZZGz6HCEYaCdbZCoXOyZHkFmyyAT4LOFCvXcEJ2Rn1nWlwFnuPJoEFYEENWJo5leWKRg5QKUTjVivEFoqjz5s9E1GvgiMYoHTDlBQR1pvRgb4ny6AEu2CzVFocPFZ6TGWRGGbO0AW6VPdkltrdIWYmhKmKzOMM7M3Zv8-mVIxFPmasgOZ_8cQOlkW4yuctiyW7KgRJzs6v5Dk0xqOx1VXk9SDzClkWWcQN8Kg1NvYvHv5EqSMNzOgyyuhtWRaId3YXwPsoE6Ck_0IqgqE1DlXSPasEDdetaiZUAA (required, opaque value used to maintain state between the request and the callback)

login_hint: 771005 (required, tools and platforms must support a value of form_post)

lti_message_hint: 37039 (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: b355e1430934a4b77ce2 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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