AWS Cloud Map
API Reference (API Version 2017-03-14)


Submits a request to change the health status of a custom health check to healthy or unhealthy.

You can use UpdateInstanceCustomHealthStatus to change the status only for custom health checks, which you define using HealthCheckCustomConfig when you create a service. You can't use it to change the status for Route 53 health checks, which you define using HealthCheckConfig.

For more information, see HealthCheckCustomConfig.

Request Syntax

{ "InstanceId": "string", "ServiceId": "string", "Status": "string" }

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.


The ID of the instance that you want to change the health status for.

Type: String

Length Constraints: Maximum length of 64.

Required: Yes


The ID of the service that includes the configuration for the custom health check that you want to change the status for.

Type: String

Length Constraints: Maximum length of 64.

Required: Yes


The new status of the instance, HEALTHY or UNHEALTHY.

Type: String


Required: Yes

Response Elements

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


For information about the errors that are common to all actions, see Common Errors.


The health check for the instance that is specified by ServiceId and InstanceId is not a custom health check.

HTTP Status Code: 400


No instance exists with the specified ID, or the instance was recently registered, and information about the instance hasn't propagated yet.

HTTP Status Code: 400


One or more specified values aren't valid. For example, a required value might be missing, a numeric value might be outside the allowed range, or a string value might exceed length constraints.

HTTP Status Code: 400


No service exists with the specified ID.

HTTP Status Code: 400


UpdateInstanceCustomHealthStatus Example

Sample Request

POST / HTTP/1.1 x-amz-date:20181118T211819Z authorization: AWS4-HMAC-SHA256 Credential=AKIAIIO2CIV3EXAMPLE/20181118/us-west-2/servicediscovery/aws4_request, SignedHeaders=content-length;content-type;host;user-agent;x-amz-date;x-amz-target, Signature=[calculated-signature] x-amz-target:Route53AutoNaming_v20170314.DiscoverInstances content-type:application/x-amz-json-1.1 content-length:number of characters in the JSON string] { "InstanceId": "i-abcd1234", "ServiceId": "srv-e4anhexample0004", "Status": "HEALTHY" }

Sample Response

HTTP/1.1 200 Content-Length: 2 Content-Type: application/x-amz-json-1.1 {}

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: