The BasicProperties UDR contains the different basic properties used in the Publish and Received UDRs. See the AMQP specification for further information about these properties. The following fields are included in the BasicProperties UDR:

Field	Description
`appId (string)`	This field contains the creating application ID.
`contentEncoding (string)`	This field contains the MIME content encoding.
`contentType (string)`	This field contains the MIME message type.
`correlationId (string)`	This field contains the application correlation identifier.
`deliveryMode (int)`	This field indicates the delivery mode; 1 - Non-persistent or 2 - Persistent.
`expiration (string)`	This field contains the message expiration specification.
`headers (map<string, any>)`	This field contains the message header field table.
`messageId (string)`	This field contains the message application identifier.
`priority (int)`	This field contains the message priority, 0-9.
`replyTo (string)`	This filed contains the address to send replies to.
`timestamp (date)`	This field contains the message timestamp.
`type (string)`	This field contains the message type name.
`userId (string)`	This field contains the creating user id.

AMQP UDRs(5.0)