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After a year of uncertainty, the TypeScript team has officially confirmed that spec-compliant decorators will not support emitting type metadata. Since decorators are used sparingly in AdonisJS, migrating away from the experimental syntax will mostly affect Dependency Injection.

2/5/25, 8:47 am1 repost9 likes

AdonisJS Framework

@adonisjs.com

2 May 2025

As with our move to ESM, we want to stay aligned with the JavaScript spec and avoid TypeScript-only patterns. We’ll start testing the new syntax internally and share updates as we go. 🙌