|  | Paho Asynchronous MQTT C Client Library
    | 
#include <MQTTAsync.h>
| Data Fields | |
| MQTTAsync_token | token | 
| union { | |
| int qos | |
| int * qosList | |
| struct { | |
| MQTTAsync_message message | |
| char * destinationName | |
| } pub | |
| struct { | |
| char * serverURI | |
| int MQTTVersion | |
| int sessionPresent | |
| } connect | |
| } | alt | 
The data returned on completion of a successful API call in the response callback onSuccess.
| MQTTAsync_token token | 
A token identifying the successful request. Can be used to refer to the request later.
| int qos | 
For subscribe, the granted QoS of the subscription returned by the server. Also for subscribeMany, if only 1 subscription was requested.
| int* qosList | 
For subscribeMany, if more than one subscription was requested, the list of granted QoSs of the subscriptions returned by the server.
| MQTTAsync_message message | 
the message being sent to the server
| char* destinationName | 
the topic destination for the message
| struct { ... } pub | 
For publish, the message being sent to the server.
| char* serverURI | 
the connection string of the server
| int MQTTVersion | 
the version of MQTT being used
| int sessionPresent | 
the session present flag returned from the server
| struct { ... } connect | 
| union { ... } alt | 
A union of the different values that can be returned for subscribe, unsubscribe and publish.
 1.8.17
 1.8.17