batch-and-change-set-request-instance-b958c17.md

Batch and Change Set Request Instance

Batch requests group multiple individual requests into a single HTTP request payload.

OData Version 4 Batch Requests

These individual requests can be included in a batch request:

• Metadata

• Data

• Data Modification

• Action Invocation

• Function Invocation

Batch requests are submitted as a single HTTP POST request to the batch endpoint of a service at the $batch URL that is related to the service root. Individual requests in a batch request are evaluated according to the same semantics used with an individual request.

In the Multipart format, you can group data modification requests or action invocation requests as part of an atomic change set. Operations outside the change set are executed sequentially. Operations in the change set are executed in any order.

Note:

In batch requests, operation is an individual request in the batch request payload. A change set request is a part of this type of batch request.

Creating a Batch Request Instance

A batch request instance is created on the Client Proxy instance. It adds individual requests, executes the batch request, and checks the execution. The batch request instance creates a change set request instance.

After you create a batch request instance, you can define the operations and add them to the batch request or to a change set. The change set request instance is created directly on the batch request instance.

Related Information

OData Client Proxy Tasks

OData Request as Batch Including Changesets