{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"749300", "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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.b9hU2c9BBOYKSMWb_e9hk2n3gjH4NJ2rpp9j7eD4ns1COdq2JUvyf_uRyzhprTxYhAonPBbqXHAggAze9oZ6m9f4nAZx-v8yuZbqYkeNRw709hAARHZp8bRl95znov2Wr69mUF1I2eeuAXP2Q3HxUdm1BDikTcM07cBPf1GWVRhMJ0siOuVrIlFbBJWJJBC5d74aPPyjJ5Cc2lER3k2_3-HdiN3nz1Hrg3xbBrBJSYgcA-d1KZptLK8IfHQ5nfnK6rsmaqfIOzTIkchgsEKrkE7sA9BhzIZkMTlgOxlweWVBQwJzER2sFBa7D0uTIIvzBRvx5aMuisawqrq3n2gzug (required, opaque value used to maintain state between the request and the callback)

login_hint: 749300 (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: 795ffd11a71f96d81aa6 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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