# Monitor WebSocket API execution with CloudWatch metrics
<a name="apigateway-websocket-api-logging"></a>

You can use [Amazon CloudWatch](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/WhatIsCloudWatch.html) metrics to monitor WebSocket APIs. The configuration is similar to that used for REST APIs. For more information, see [Monitor REST API execution with Amazon CloudWatch metrics](monitoring-cloudwatch.md).

The following metrics are supported for WebSocket APIs:


| Metric | Description | 
| --- | --- | 
| ConnectCount | The number of messages sent to the $connect route integration. | 
| MessageCount | The number of messages sent to the WebSocket API, either from or to the client. | 
| IntegrationError | The number of requests that return a 4XX/5XX response from the integration. | 
| ClientError | The number of requests that have a 4XX response returned by API Gateway before the integration is invoked. | 
| ExecutionError | Errors that occurred when calling the integration. | 
| IntegrationLatency | The time difference between API Gateway sending the request to the integration and API Gateway receiving the response from the integration. Suppressed for callbacks and mock integrations. | 

You can use the dimensions in the following table to filter API Gateway metrics.


| Dimension | Description | 
| --- | --- | 
| ApiId | Filters API Gateway metrics for an API with the specified API ID. | 
| ApiId, Stage | Filters API Gateway metrics for an API stage with the specified API ID and stage ID. | 
| ApiId, Method, Resource, Stage | Filters API Gateway metrics for an API method with the specified API ID, stage ID, resource path, and route ID.<br />API Gateway will not send these metrics unless you have explicitly enabled detailed CloudWatch metrics. You can do this by calling the [UpdateStage](https://docs.aws.amazon.com/apigatewayv2/latest/api-reference/apis-apiid-stages-stagename.html) action of the API Gateway V2 REST API to update the `detailedMetricsEnabled` property to `true`. Alternatively, you can call the [update-stage](https://docs.aws.amazon.com/cli/latest/reference/apigatewayv2/update-stage.html) AWS CLI command to update the `DetailedMetricsEnabled` property to `true`. Enabling such metrics will incur additional charges to your account. For pricing information, see [Amazon CloudWatch Pricing](https://aws.amazon.com/cloudwatch/pricing/). |