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Bitbucket Authentication Provider

The Backstage core-plugin-api package comes with a Bitbucket authentication provider that can authenticate users using Bitbucket Cloud. This does NOT work with Bitbucket Server.

Create an OAuth Consumer in Bitbucket

To add Bitbucket Cloud authentication, you must create an OAuth Consumer.

Go to<your-project-name>/workspace/settings/api .

Click Add Consumer.

Settings for local development:

  • Application name: Backstage (or your custom app name)
  • Callback URL: http://localhost:7007/api/auth/bitbucket
  • Other are optional
  • (IMPORTANT) Permissions: Account - Read, Workspace membership - Read


The provider configuration can then be added to your app-config.yaml under the root auth configuration:

environment: development

The Bitbucket provider is a structure with two configuration keys:

  • clientId: The Key that you generated in Bitbucket, e.g. b59241722e3c3b4816e2
  • clientSecret: The Secret tied to the generated Key.

Adding the provider to the Backstage frontend

To add the provider to the frontend, add the bitbucketAuthApi reference and SignInPage component as shown in Adding the provider to the sign-in page.

Using Bitbucket for sign-in

In order to use the Bitbucket provider for sign-in, you must configure it with a signIn.resolver. See the Sign-In Resolver documentation for more details on how this is done. Note that for the Bitbucket provider, you'll want to use bitbucket as the provider ID, and providers.bitbucket.create for the provider factory.

The @backstage/plugin-auth-backend plugin also comes with two built-in resolvers that can be used if desired. The first one is the bitbucketUsernameSignInResolver, which identifies users by matching their Bitbucket username to annotations of User entities in the catalog. Note that you must populate your catalog with matching entities or users will not be able to sign in.

The second resolver is the bitbucketUserIdSignInResolver, which works the same way, but uses the Bitbucket user ID instead, and matches on the annotation.

The following is an example of how to use one of the built-in resolvers:

import { providers } from '@backstage/plugin-auth-backend';

// ...
providerFactories: {
bitbucket: providers.bitbucket.create({
signIn: {