outgoingMessageCorrelationData (property)
Used by the sender of the request message to identify which request the response message is for when it is received.
Syntax
- (NSString*)outgoingMessageCorrelationData:(int)outgoingMessageIndex;
public func outgoingMessageCorrelationData(outgoingMessageIndex: Int32) throws -> String
Default Value
""
Remarks
Used by the sender of the request message to identify which request the response message is for when it is received.
Valid only for MQTT 5.
The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.
This property is read-only.