# ListTunnels
<a name="API_iot-secure-tunneling_ListTunnels"></a>

List all tunnels for an Amazon Web Services account. Tunnels are listed by creation time in descending order, newer tunnels will be listed before older tunnels.

Requires permission to access the [ListTunnels](https://docs.amazonaws.cn/service-authorization/latest/reference/list_awsiot.html#awsiot-actions-as-permissions) action.

## Request Syntax
<a name="API_iot-secure-tunneling_ListTunnels_RequestSyntax"></a>

```
{
   "maxResults": number,
   "nextToken": "string",
   "thingName": "string"
}
```

## Request Parameters
<a name="API_iot-secure-tunneling_ListTunnels_RequestParameters"></a>

For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

The request accepts the following data in JSON format.

 ** [maxResults](#API_iot-secure-tunneling_ListTunnels_RequestSyntax) **   <a name="iot-iot-secure-tunneling_ListTunnels-request-maxResults"></a>
The maximum number of results to return at once.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 100.  
Required: No

 ** [nextToken](#API_iot-secure-tunneling_ListTunnels_RequestSyntax) **   <a name="iot-iot-secure-tunneling_ListTunnels-request-nextToken"></a>
To retrieve the next set of results, the nextToken value from a previous response; otherwise null to receive the first set of results.  
Type: String  
Pattern: `[a-zA-Z0-9_=-]{1,4096}`   
Required: No

 ** [thingName](#API_iot-secure-tunneling_ListTunnels_RequestSyntax) **   <a name="iot-iot-secure-tunneling_ListTunnels-request-thingName"></a>
The name of the IoT thing associated with the destination device.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `[a-zA-Z0-9:_-]+`   
Required: No

## Response Syntax
<a name="API_iot-secure-tunneling_ListTunnels_ResponseSyntax"></a>

```
{
   "nextToken": "string",
   "tunnelSummaries": [ 
      { 
         "createdAt": number,
         "description": "string",
         "lastUpdatedAt": number,
         "status": "string",
         "tunnelArn": "string",
         "tunnelId": "string"
      }
   ]
}
```

## Response Elements
<a name="API_iot-secure-tunneling_ListTunnels_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

 ** [nextToken](#API_iot-secure-tunneling_ListTunnels_ResponseSyntax) **   <a name="iot-iot-secure-tunneling_ListTunnels-response-nextToken"></a>
The token to use to get the next set of results, or null if there are no additional results.  
Type: String  
Pattern: `[a-zA-Z0-9_=-]{1,4096}` 

 ** [tunnelSummaries](#API_iot-secure-tunneling_ListTunnels_ResponseSyntax) **   <a name="iot-iot-secure-tunneling_ListTunnels-response-tunnelSummaries"></a>
A short description of the tunnels in an Amazon Web Services account.  
Type: Array of [TunnelSummary](API_iot-secure-tunneling_TunnelSummary.md) objects

## See Also
<a name="API_iot-secure-tunneling_ListTunnels_SeeAlso"></a>

For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon Command Line Interface V2](https://docs.amazonaws.cn/goto/cli2/iotsecuretunneling-2018-10-05/ListTunnels) 
+  [Amazon SDK for .NET V4](https://docs.amazonaws.cn/goto/DotNetSDKV4/iotsecuretunneling-2018-10-05/ListTunnels) 
+  [Amazon SDK for C\$1\$1](https://docs.amazonaws.cn/goto/SdkForCpp/iotsecuretunneling-2018-10-05/ListTunnels) 
+  [Amazon SDK for Go v2](https://docs.amazonaws.cn/goto/SdkForGoV2/iotsecuretunneling-2018-10-05/ListTunnels) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/iotsecuretunneling-2018-10-05/ListTunnels) 
+  [Amazon SDK for JavaScript V3](https://docs.amazonaws.cn/goto/SdkForJavaScriptV3/iotsecuretunneling-2018-10-05/ListTunnels) 
+  [Amazon SDK for Kotlin](https://docs.amazonaws.cn/goto/SdkForKotlin/iotsecuretunneling-2018-10-05/ListTunnels) 
+  [Amazon SDK for PHP V3](https://docs.amazonaws.cn/goto/SdkForPHPV3/iotsecuretunneling-2018-10-05/ListTunnels) 
+  [Amazon SDK for Python](https://docs.amazonaws.cn/goto/boto3/iotsecuretunneling-2018-10-05/ListTunnels) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/iotsecuretunneling-2018-10-05/ListTunnels)