# ThingConnectivity
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The connectivity status of the thing.

## Contents
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 ** cleanSession **   <a name="iot-Type-ThingConnectivity-cleanSession"></a>
Indicates whether the client is using a clean session. Returns `true` for clean sessions.  
Type: Boolean  
Required: No

 ** clientId **   <a name="iot-Type-ThingConnectivity-clientId"></a>
The unique identifier of the MQTT client.  
Type: String  
Required: No

 ** connected **   <a name="iot-Type-ThingConnectivity-connected"></a>
True if the thing is connected to the Amazon IoT Core service; false if it is not connected.  
Type: Boolean  
Required: No

 ** disconnectReason **   <a name="iot-Type-ThingConnectivity-disconnectReason"></a>
The reason that the client is disconnected.  
Type: String  
Required: No

 ** keepAliveDuration **   <a name="iot-Type-ThingConnectivity-keepAliveDuration"></a>
The keep-alive interval in seconds that the client specified when establishing the connection.  
Type: Integer  
Required: No

 ** sessionExpiry **   <a name="iot-Type-ThingConnectivity-sessionExpiry"></a>
The session expiry interval in seconds for the MQTT client connection. This value indicates how long the session will remain active after the client disconnects.  
Type: Long  
Required: No

 ** timestamp **   <a name="iot-Type-ThingConnectivity-timestamp"></a>
The epoch time (in milliseconds) when the thing last connected or disconnected.  
Type: Long  
Required: No

## See Also
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For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon SDK for C\+\+](https://docs.amazonaws.cn/goto/SdkForCpp/iot-2015-05-28/ThingConnectivity) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/iot-2015-05-28/ThingConnectivity) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/iot-2015-05-28/ThingConnectivity)