{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"672634", "target_link_uri"=>"https://lti-ri.imsglobal.org/lti/tools/1813/launches", "lti_message_hint"=>"34154", "client_id"=>"12345", "lti_deployment_id"=>"2"}

response_type: id_token (required, the tool must use a value of id_token)

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/1813/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: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6ImV0WXhRc1RPQVFKMW5uQVhwZ2pHSkdaVGVwQkM2WUlscXBNcnFsV2lkTzQiLCJ0eXAiOiJKV1QifQ.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.nNmeu3ehQYCQOcZKGoLfcctqjhPOGishpgi6zFY7O7E-vMhBn8y1rFwT3GuI13n-yShUxTIrpbojRznyCcDSxXy_UzjfkvEn_QSQJloWEYUkBv9uvM74aEFVByK27coVvxzM6RBe2XLP-Jkp_Gwc0H98f3Tfhe19nOLABc2zX3A0HEj5xQVP9YD41O9iOFmFWVDD4pY19aD-tLTP2OGoHFe4gwX_Ctg1vKrZdW6AWASGFTPPFCem1cYyf5zjkdlKUz2vyjfouKe4SN-BvTjiIgxmZubXbkENZ8odZP-e8FxSYkrakI2OxtSxSwzhoa-1OBI32zDq4kz8DsFMof_f1g (required, opaque value used to maintain state between the request and the callback)

login_hint: 672634 (required, tools and platforms must support a value of form_post)

lti_message_hint: 34154 (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: 621251d6a32c13c9ba7f (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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