{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"477159", "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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.EfAII_WoH1SrhjPPfeyHoHe_2201nQRVGP3YaqdW--JDXXnHyl0jXrYZ1lKYxv4uGPc8eoSRb-cHppUqahfZLN4xr-vb0KKKu0gL2crGMHA5rmZvZdzLPiZ6Vm4DYUA0wHxf4TYv85JHfbqVYTIZe-ySC3I5WcMED3cU-vZtv_TuBkP7GDYmAs6DxgnGHs6yq7Lf2p63O8JfaDzGrKokalb3mB77bgB2iL9ACbR1JA-6SwNKFt9qv7BVCfPjxexg3C5UByvrqGsbtDlBJt7FM8AVEHC4AOUu5xoEC0Yg-c_TQVQS2Ndcn6FrWiL0gS5VYIaMXaaUcYDhcmhItj3bvw (required, opaque value used to maintain state between the request and the callback)

login_hint: 477159 (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: fc713b0ad9986e5ba32a (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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