Azure Core Authentication client library for JavaScript

The @azure/core-auth package provides core interfaces and helper methods for authenticating with Azure services using Azure Active Directory and other authentication schemes common across the Azure SDK. As a "core" library, it shouldn't need to be added as a dependency to any user code, only other Azure SDK libraries.

Getting started

Installation

Install this library using npm as follows

npm install @azure/core-auth

Key Concepts

The TokenCredential interface represents a credential capable of providing an authentication token. The @azure/identity package contains various credentials that implement the TokenCredential interface.

The AzureKeyCredential is a static key-based credential that supports key rotation via the update method. Use this when a single secret value is needed for authentication, e.g. when using a shared access key.

The AzureNamedKeyCredential is a static name/key-based credential that supports name and key rotation via the update method. Use this when both a secret value and a label are needed, e.g. when using a shared access key and shared access key name.

The AzureSASCredential is a static signature-based credential that supports updating the signature value via the update method. Use this when using a shared access signature.

Examples

AzureKeyCredential

import { AzureKeyCredential } from "@azure/core-auth";

const credential = new AzureKeyCredential("secret value");

console.log(credential.key); // prints: "secret value"

credential.update("other secret value");

console.log(credential.key); // prints: "other secret value"

AzureNamedKeyCredential

import { AzureNamedKeyCredential } from "@azure/core-auth";

const credential = new AzureNamedKeyCredential("ManagedPolicy", "secret value");

console.log(`${credential.name}, ${credential.key}`); // prints: "ManagedPolicy, secret value"

credential.update("OtherManagedPolicy", "other secret value");

console.log(`${credential.name}, ${credential.key}`); // prints: "OtherManagedPolicy, other secret value"

AzureSASCredential

import { AzureSASCredential } from "@azure/core-auth";

const credential = new AzureSASCredential("signature1");

console.log(credential.signature); // prints: "signature1"

credential.update("signature2");

console.log(credential.signature); // prints: "signature2"

Next steps

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

Troubleshooting

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

Contributing

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.