{"iss"=>"https://lti-ri.imsglobal.org", "login_hint"=>"371538", "target_link_uri"=>"https://lti-ri.imsglobal.org/lti/tools/1801/launches", "lti_message_hint"=>"34106", "client_id"=>"c12345", "lti_deployment_id"=>"d_1"}

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

redirect_uri: https://lti-ri.imsglobal.org/lti/tools/1801/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: c12345 (required, client identifier valid at the Platform)

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

state: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6InVhMnRnbjlUakVfeDJsRm5uMnk1WjhPQndxcVptWHF1T01DU3czbXhRbVUiLCJ0eXAiOiJKV1QifQ.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.ZfH9HuUWTZUQqI94bNUWp4R4o1xSrlhVpfGSp24iaD9hcoeRgr475oAYeimsQBV2U13wTaAHICkLhoI2Te5Cwxgu0GqQQgKRcW5U-zYGgFSMbixSJyVNOBxmTt0J5Htd8cc0zXFsw49TkVzSwTaWGz8aiq7OLPPQuXhE3fFR9CsvSiredsgxY3cy482kk6sizwb7uaXbPb0Ej0G3594yfCUQB7ULilaMee0aQnlP5vjFDCf5NC126hc2r-O1RfL-_jrllMBm3dNXJawTXn3l3djQQAo8oneR_sIjvfUcggOCUzIfUHVsDdvMcrvsb0ylFdLt0GUihhl1TarIQQk_Ag (required, opaque value used to maintain state between the request and the callback)

login_hint: 371538 (required, tools and platforms must support a value of form_post)

lti_message_hint: 34106 (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: 1fcff167ce409f4d79a3 (optional, string value used to associate a client session with an ID token, and to mitigate replay attacks)

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