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2.1.2 • Public • Published

Azure Abort Controller client library for JavaScript

The @azure/abort-controller package provides AbortSignalLike interface and AbortError classes to make it easier to work with the AbortController and the AbortSignal used by fetch built into modern JavaScript platforms.

Customers of Azure SDK for JavaScript in general do not need to use this library. Instead they use AbortController and AbortSignal provided by their platforms and pass the abort signals to Azure SDK operations.

Key links:

Getting started


Install this library using npm as follows

npm install @azure/abort-controller

Key Concepts

Use AbortController to create an AbortSignal which can then be passed to Azure SDK operations to cancel pending work. The AbortSignal can be accessed via the signal property on an instantiated AbortController. An AbortSignal can also be returned directly from a static method, e.g. AbortSignal.timeout(100). that is cancelled after 100 milliseconds.


The below examples assume that doAsyncWork is a function that takes a bag of properties, one of which is of the abort signal.

Example 1 - basic usage

const controller = new AbortController();
doAsyncWork({ abortSignal: controller.signal });

// at some point later

Example 2 - Aborting with timeout

const signal = AbortSignal.timeout(1000);
doAsyncWork({ abortSignal: signal });

Next steps

You can build and run the tests locally by executing rushx test. Explore the test folder to see advanced usage and behavior of the public classes.


If you run into issues while using this library, please feel free to file an issue.


If you'd like to contribute to this library, please read the contributing guide to learn more about how to build and test the code.


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npm i @azure/abort-controller

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  • microsoft1es
  • azure-sdk