# CreateSignalingChannel
<a name="API_CreateSignalingChannel"></a>

Creates a signaling channel. 

 `CreateSignalingChannel` is an asynchronous operation.

## Request Syntax
<a name="API_CreateSignalingChannel_RequestSyntax"></a>

```
POST /createSignalingChannel HTTP/1.1
Content-type: application/json

{
   "ChannelName": "string",
   "ChannelType": "string",
   "SingleMasterConfiguration": { 
      "MessageTtlSeconds": number
   },
   "Tags": [ 
      { 
         "Key": "string",
         "Value": "string"
      }
   ]
}
```

## URI Request Parameters
<a name="API_CreateSignalingChannel_RequestParameters"></a>

The request does not use any URI parameters.

## Request Body
<a name="API_CreateSignalingChannel_RequestBody"></a>

The request accepts the following data in JSON format.

 ** [ChannelName](#API_CreateSignalingChannel_RequestSyntax) **   <a name="KinesisVideo-CreateSignalingChannel-request-ChannelName"></a>
A name for the signaling channel that you are creating. It must be unique for each AWS account and AWS Region.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 256.  
Pattern: `[a-zA-Z0-9_.-]+`   
Required: Yes

 ** [ChannelType](#API_CreateSignalingChannel_RequestSyntax) **   <a name="KinesisVideo-CreateSignalingChannel-request-ChannelType"></a>
A type of the signaling channel that you are creating. Currently, `SINGLE_MASTER` is the only supported channel type.   
Type: String  
Valid Values: `SINGLE_MASTER | FULL_MESH`   
Required: No

 ** [SingleMasterConfiguration](#API_CreateSignalingChannel_RequestSyntax) **   <a name="KinesisVideo-CreateSignalingChannel-request-SingleMasterConfiguration"></a>
A structure containing the configuration for the `SINGLE_MASTER` channel type. The default configuration for the channel message's time to live is 60 seconds (1 minute).  
Type: [SingleMasterConfiguration](API_SingleMasterConfiguration.md) object  
Required: No

 ** [Tags](#API_CreateSignalingChannel_RequestSyntax) **   <a name="KinesisVideo-CreateSignalingChannel-request-Tags"></a>
A set of tags (key-value pairs) that you want to associate with this channel.  
Type: Array of [Tag](API_Tag.md) objects  
Array Members: Minimum number of 0 items. Maximum number of 50 items.  
Required: No

## Response Syntax
<a name="API_CreateSignalingChannel_ResponseSyntax"></a>

```
HTTP/1.1 200
Content-type: application/json

{
   "ChannelARN": "string"
}
```

## Response Elements
<a name="API_CreateSignalingChannel_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.

 ** [ChannelARN](#API_CreateSignalingChannel_ResponseSyntax) **   <a name="KinesisVideo-CreateSignalingChannel-response-ChannelARN"></a>
The Amazon Resource Name (ARN) of the created channel.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1024.  
Pattern: `arn:[a-z\d-]+:kinesisvideo:[a-z0-9-]+:[0-9]+:[a-z]+/[a-zA-Z0-9_.-]+/[0-9]+` 

## Errors
<a name="API_CreateSignalingChannel_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** AccessDeniedException **   
You do not have required permissions to perform this operation.  
HTTP Status Code: 401

 ** AccountChannelLimitExceededException **   
You have reached the maximum limit of active signaling channels for this AWS account in this region.  
HTTP Status Code: 400

 ** ClientLimitExceededException **   
Kinesis Video Streams has throttled the request because you have exceeded the limit of allowed client calls. Try making the call later.  
HTTP Status Code: 400

 ** InvalidArgumentException **   
The value for this input parameter is invalid.  
HTTP Status Code: 400

 ** ResourceInUseException **   
When the input `StreamARN` or `ChannelARN` in `CLOUD_STORAGE_MODE` is already mapped to a different Kinesis Video Stream resource, or if the provided input `StreamARN` or `ChannelARN` is not in Active status, try one of the following :   

1. The `DescribeMediaStorageConfiguration` API to determine what the stream given channel is mapped to. 

1. The `DescribeMappedResourceConfiguration` API to determine the channel that the given stream is mapped to. 

1. The `DescribeStream` or `DescribeSignalingChannel` API to determine the status of the resource. 
HTTP Status Code: 400

 ** TagsPerResourceExceededLimitException **   
You have exceeded the limit of tags that you can associate with the resource. A Kinesis video stream can support up to 50 tags.   
HTTP Status Code: 400

## See Also
<a name="API_CreateSignalingChannel_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/kinesisvideo-2017-09-30/CreateSignalingChannel) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/kinesisvideo-2017-09-30/CreateSignalingChannel) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/kinesisvideo-2017-09-30/CreateSignalingChannel) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/kinesisvideo-2017-09-30/CreateSignalingChannel) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/kinesisvideo-2017-09-30/CreateSignalingChannel) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/kinesisvideo-2017-09-30/CreateSignalingChannel) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/kinesisvideo-2017-09-30/CreateSignalingChannel) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/kinesisvideo-2017-09-30/CreateSignalingChannel) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/kinesisvideo-2017-09-30/CreateSignalingChannel) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/kinesisvideo-2017-09-30/CreateSignalingChannel)