Concurrency handling

The API implements optimistic concurrency control for PUT and DELETE operations to prevent conflicting updates to resources.

How It Works

Getting the Concurrency Token

1. Send a GET request to the resource endpoint
2. Retrieve the RowVersion property from the response

Using the Concurrency Token

Include the RowVersion in the If-Match HTTP header when performing:

• PUT operations (updates)
• DELETE operations

Error Handling

Important: The API validates the concurrency token before processing the request:

• If the token matches: The operation proceeds
• If the token doesn't match: The operation doesn't proceed and returns HTTP 409 - Unauthorized, indicating the resource has been modified

This prevents unintended overwrites of changes made by other clients.