Angular Modules Standards

Standard Metadata

• Area: Angular
• Owner: Frontend Steering Group
• Last reviewed: 2026-09-09
• Next review due from: 2026-12-01
• Enforcement: ESLint / code review
• Status: Active

Core Module

Use providedIn over adding them to the providers array · NG-03.7 · SHOULD

In most cases you should use providedIn: 'root' for services instead of adding them to the providers array of a Module.

This means that you don’t have unnecessary imports. providedIn: 'root' makes the service available to the whole app anyway.

If the service is only needed by a certain feature module then you should not use providedIn: 'root' and should instead add the service to the provider array for that feature module.