Scenario: Single-page application

Learn all you need to build a single-page application (SPA).


Before reading this article, you should be familiar with the following concepts or read the following articles:

Getting started

You can create your first application by following the JavaScript SPA quickstart:


Many modern web applications are built as client-side single-page applications written using JavaScript or a SPA framework such as Angular, Vue.js, and React.js. These applications run in a web browser and have different authentication characteristics than traditional server-side web applications. The Microsoft identity platform enables single-page applications to sign in users and get tokens to access backend services or web APIs using the OAuth 2.0 implicit flow. The implicit flow allows the application to get ID tokens to represent the authenticated user and also access tokens needed to call protected APIs.

Single-page applications

This authentication flow does not include application scenarios using cross-platform JavaScript frameworks such as Electron, React-Native and so on. since they require further capabilities for interaction with the native platforms.


The following aspects are required to enable this scenario for your application:

  • Application registration with Azure AD involves enabling the implicit flow and setting a redirect URI to which tokens are returned.
  • Application configuration with the registered application properties such as Application ID.
  • Using MSAL library to do the auth flow to sign in and acquire tokens.

Next steps