DescribeImages - Amazon Elastic Container Registry Public
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Returns metadata that's related to the images in a repository in a public registry.


Beginning with Docker version 1.9, the Docker client compresses image layers before pushing them to a V2 Docker registry. The output of the docker images command shows the uncompressed image size. Therefore, it might return a larger image size than the image sizes that are returned by DescribeImages.

Request Syntax

{ "imageIds": [ { "imageDigest": "string", "imageTag": "string" } ], "maxResults": number, "nextToken": "string", "registryId": "string", "repositoryName": "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 list of image IDs for the requested repository.

Type: Array of ImageIdentifier objects

Array Members: Minimum number of 1 item. Maximum number of 100 items.

Required: No


The maximum number of repository results that's returned by DescribeImages in paginated output. When this parameter is used, DescribeImages only returns maxResults results in a single page along with a nextToken response element. You can see the remaining results of the initial request by sending another DescribeImages request with the returned nextToken value. This value can be between 1 and 1000. If this parameter isn't used, then DescribeImages returns up to 100 results and a nextToken value, if applicable. If you specify images with imageIds, you can't use this option.

Type: Integer

Valid Range: Minimum value of 1. Maximum value of 1000.

Required: No


The nextToken value that's returned from a previous paginated DescribeImages request where maxResults was used and the results exceeded the value of that parameter. Pagination continues from the end of the previous results that returned the nextToken value. If there are no more results to return, this value is null. If you specify images with imageIds, you can't use this option.

Type: String

Required: No


The Amazon account ID that's associated with the public registry that contains the repository where images are described. If you do not specify a registry, the default public registry is assumed.

Type: String

Pattern: [0-9]{12}

Required: No


The repository that contains the images to describe.

Type: String

Length Constraints: Minimum length of 2. Maximum length of 205.

Pattern: (?:[a-z0-9]+(?:[._-][a-z0-9]+)*/)*[a-z0-9]+(?:[._-][a-z0-9]+)*

Required: Yes

Response Syntax

{ "imageDetails": [ { "artifactMediaType": "string", "imageDigest": "string", "imageManifestMediaType": "string", "imagePushedAt": number, "imageSizeInBytes": number, "imageTags": [ "string" ], "registryId": "string", "repositoryName": "string" } ], "nextToken": "string" }

Response Elements

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

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


A list of ImageDetail objects that contain data about the image.

Type: Array of ImageDetail objects


The nextToken value to include in a future DescribeImages request. When the results of a DescribeImages request exceed maxResults, you can use this value to retrieve the next page of results. If there are no more results to return, this value is null.

Type: String


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


The image requested doesn't exist in the specified repository.

HTTP Status Code: 400


The specified parameter is invalid. Review the available parameters for the API request.

HTTP Status Code: 400


The specified repository can't be found. Check the spelling of the specified repository and ensure that you're performing operations on the correct registry.

HTTP Status Code: 400


These errors are usually caused by a server-side issue.

HTTP Status Code: 500


The action isn't supported in this Region.

HTTP Status Code: 400

See Also

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