Attributes in the Output Items

In this section, you can find the descriptions of all the attributes for the header, serverName, and tagList items in the Output tab.

The following table provides the descriptions of all the attributes in the header item:

Attribute Name	Data Type	Description
`consumer`	String	The identifier of the message user.
`provider`	String	The identifier of the message provider.
`timestamp`	String	The date and time when the message is generated.
`messageId`	String	The globally unique identifier of the message.
`correlationId`	String	The correlation identifier that can be used for correlating multiple messages.
`serverName`	String	The name of the PI server that stores the tag.

The following table provides the descriptions of all the attributes in the serverName and tagList items:

Attribute Name	Data Type	Description
`serverName`	String	The name of the PI server that stores the tag.
`name`	String	The unique name of the tag.
`value`	String	The tag value returned by PI server. If the value is not available for any reason, it is set to N/A. And it is not relevant for Blob type tags.
`binaryValue`	Binary	The binary value of the tag returned by PI server. If the value is not available for any reason, it is set to N/A. And it is relevant for Blob type tags only.
`timestamp`	String	The date and time when the tag value is generated.
`isGood`	Boolean	The attribute that identifies whether the tag value is valid.
`isStale`	Boolean	The attribute that identifies whether the last tag value change is stale in relation to the stale period you specify in the getValues request. The value is relevant only when the staleFrom and staleTo values are entered in the getValues request. If the last tag value change happens within the stale period, `isStale` is set to `true`. If the last tag value change happens after the `staleTo` value, `isStale` is set to `false`. If the last tag value change happens before the `staleFrom` value, the tag is omitted from the response message.