{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"462493", "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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.N7Tvdw9oO8cWmeEFtLZ6CC_HtSE63Ek79Onx8fuCkN9zg3iuZ0C2qWVGrlqiSJwNfCCYXABuYGJ6i2g-KfoUHsaaDizGWTMK4RMvYMQnqV2BLNT0Q6KTIue-Gt_AUmDdeHp9VKmMabTJRtQRCXczIaS_g7wb5IPHR_Ka8orNLGK470qJ0KAEoVRjwT86whm1WUQpfLExmGsk4BcJ6sqVbzQGq5n7kkyOqnx-Wy4YQaXPiK6srGk7ElNRTO8Zz_KQDpqHmdAeXLJyhrrfySpHBK1K5alnRIQOwC3GvtZoc2DYRhTvPAYvlyYUDKcTL07OPBoKSlLieyqwFajErHBnRA (required, opaque value used to maintain state between the request and the callback)

login_hint: 462493 (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: fe9bfc55fa76b93de1fe (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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