# StartCanary


Use this operation to run a canary that has already been created. The frequency of the canary runs is determined by the value of the canary's `Schedule`. To see a canary's schedule, use [GetCanary](https://docs.aws.amazon.com/AmazonSynthetics/latest/APIReference/API_GetCanary.html).

## Request Syntax


```
POST /canary/name/start HTTP/1.1
```

## URI Request Parameters


The request uses the following URI parameters.

 ** [name](#API_StartCanary_RequestSyntax) **   <a name="synthetics-StartCanary-request-uri-Name"></a>
The name of the canary that you want to run. To find canary names, use [DescribeCanaries](https://docs.aws.amazon.com/AmazonSynthetics/latest/APIReference/API_DescribeCanaries.html).  
Length Constraints: Minimum length of 1. Maximum length of 255.  
Pattern: `^[0-9a-z_\-]+$`   
Required: Yes

## Request Body


The request does not have a request body.

## Response Syntax


```
HTTP/1.1 200
```

## Response Elements


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

## Errors


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

 ** ConflictException **   
A conflicting operation is already in progress.  
HTTP Status Code: 409

 ** InternalServerException **   
An unknown internal error occurred.  
HTTP Status Code: 500

 ** ResourceNotFoundException **   
One of the specified resources was not found.  
HTTP Status Code: 404

 ** ValidationException **   
A parameter could not be validated.  
HTTP Status Code: 400

## See Also


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/synthetics-2017-10-11/StartCanary) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/synthetics-2017-10-11/StartCanary) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/synthetics-2017-10-11/StartCanary) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/synthetics-2017-10-11/StartCanary) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/synthetics-2017-10-11/StartCanary) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/synthetics-2017-10-11/StartCanary) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/synthetics-2017-10-11/StartCanary) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/synthetics-2017-10-11/StartCanary) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/synthetics-2017-10-11/StartCanary) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/synthetics-2017-10-11/StartCanary)