feat(backend,clerk-js): Add providerUserId field to ExternalAccount

[Jibaru]

Description

Add providerUserId as a new field to the ExternalAccount resource to provide a clearer way to access the unique user ID from OAuth providers. This field is now the preferred way to retrieve provider user identifiers.

The existing externalId field is deprecated in favor of providerUserId for better clarity and consistency across the API. The externalId field remains available but is marked with @deprecated JSDoc annotation to guide developers toward the new field.

Checklist

• pnpm test runs as expected.
• pnpm build runs as expected.
• (If applicable) JSDoc comments have been added or updated for any package exports
• (If applicable) Documentation has been updated

Type of change

• 🐛 Bug fix
• 🌟 New feature
• 🔨 Breaking change
• 📖 Refactoring / dependency upgrade / documentation
• other:

Summary by CodeRabbit

• New Features

  • Added providerUserId field to external accounts for accessing OAuth provider user identifiers.

• Documentation

  • Deprecated externalId in favor of providerUserId.

[changeset-bot]

🦋 Changeset detected

Latest commit: 374f251

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 13 packages

Name	Type
@clerk/clerk-js	Minor
@clerk/backend	Minor
@clerk/chrome-extension	Patch
@clerk/expo	Patch
@clerk/agent-toolkit	Patch
@clerk/astro	Patch
@clerk/express	Patch
@clerk/fastify	Patch
@clerk/nextjs	Patch
@clerk/nuxt	Patch
@clerk/react-router	Patch
@clerk/tanstack-react-start	Patch
@clerk/testing	Patch

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Project	Deployment	Actions	Updated (UTC)
clerk-js-sandbox	Ready	Preview, Comment	Feb 5, 2026 7:08pm

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commit: 374f251

[coderabbitai]

📝 Walkthrough

Walkthrough

This pull request introduces a new providerUserId field to the ExternalAccount resource across both the @clerk/backend and @clerk/clerk-js packages. The existing externalId field is marked as deprecated in favor of the new field. The ExternalAccount.fromJSON method is updated to map the incoming provider_user_id data to the new providerUserId field. Test fixtures in the clerk-js package are also updated to include the provider_user_id field in mock data to reflect the API response structure changes.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding providerUserId field to ExternalAccount resource across backend and clerk-js packages.
Linked Issues check	✅ Passed	The PR adds providerUserId field to ExternalAccount for clearer OAuth provider ID access and deprecates externalId, directly addressing USER-39's need for consistent provider-specific OAuth data formats.
Out of Scope Changes check	✅ Passed	All changes are directly related to the stated objective of adding providerUserId and deprecating externalId; no unrelated modifications detected.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[wobsoriano]

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