UpdateDatasetEntries - Amazon Lookout for Vision API Reference


Adds or updates one or more JSON Line entries in a dataset. A JSON Line includes information about an image used for training or testing an Amazon Lookout for Vision model.

To update an existing JSON Line, use the source-ref field to identify the JSON Line. The JSON line that you supply replaces the existing JSON line. Any existing annotations that are not in the new JSON line are removed from the dataset.

For more information, see Defining JSON lines for anomaly classification.


The images you reference in the source-ref field of a JSON line, must be in the same S3 bucket as the existing images in the dataset.

Updating a dataset might take a while to complete. To check the current status, call DescribeDataset and check the Status field in the response.

This operation requires permissions to perform the lookoutvision:UpdateDatasetEntries operation.

Request Syntax

PATCH /2020-11-20/projects/projectName/datasets/datasetType/entries HTTP/1.1 X-Amzn-Client-Token: ClientToken Content-type: application/json { "Changes": blob }

URI Request Parameters

The request uses the following URI parameters.


ClientToken is an idempotency token that ensures a call to UpdateDatasetEntries completes only once. You choose the value to pass. For example, An issue might prevent you from getting a response from UpdateDatasetEntries. In this case, safely retry your call to UpdateDatasetEntries by using the same ClientToken parameter value.

If you don't supply a value for ClientToken, the AWS SDK you are using inserts a value for you. This prevents retries after a network error from making multiple updates with the same dataset entries. You'll need to provide your own value for other use cases.

An error occurs if the other input parameters are not the same as in the first request. Using a different value for ClientToken is considered a new call to UpdateDatasetEntries. An idempotency token is active for 8 hours.

Length Constraints: Minimum length of 1. Maximum length of 64.

Pattern: ^[a-zA-Z0-9-]+$


The type of the dataset that you want to update. Specify train to update the training dataset. Specify test to update the test dataset. If you have a single dataset project, specify train.

Length Constraints: Minimum length of 1. Maximum length of 10.

Pattern: train|test

Required: Yes


The name of the project that contains the dataset that you want to update.

Length Constraints: Minimum length of 1. Maximum length of 255.

Pattern: [a-zA-Z0-9][a-zA-Z0-9_\-]*

Required: Yes

Request Body

The request accepts the following data in JSON format.


The entries to add to the dataset.

Type: Base64-encoded binary data object

Length Constraints: Minimum length of 1. Maximum length of 10485760.

Required: Yes

Response Syntax

HTTP/1.1 202 Content-type: application/json { "Status": "string" }

Response Elements

If the action is successful, the service sends back an HTTP 202 response.

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


The status of the dataset update.

Type: String



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


You are not authorized to perform the action.

HTTP Status Code: 403


The update or deletion of a resource caused an inconsistent state.

HTTP Status Code: 409


Amazon Lookout for Vision experienced a service issue. Try your call again.

HTTP Status Code: 500


The resource could not be found.

HTTP Status Code: 404


Amazon Lookout for Vision is temporarily unable to process the request. Try your call again.

HTTP Status Code: 429


An input validation error occured. For example, invalid characters in a project name, or if a pagination token is invalid.

HTTP Status Code: 400

See Also

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