Dev.to
6/1/2026

WordPress teams build custom REST
Original: Going Headless From the Inside Out: Native WordPress API Customization
Short summary
WordPress teams can build lightweight custom REST API endpoints using register_rest_route to serve optimized data to React frontends without third-party plugins. Filtering payloads at the server level reduces network bloat and improves performance while retaining WordPress's familiar authoring interface. This hybrid approach enables modern decoupled architecture without infrastructure migration.
- •Use register_rest_route to create custom endpoints that return only the fieldsets your frontend needs
- •Filter payloads at the server level to reduce database and network overhead
- •Maintain WordPress's content editing experience while unlocking decoupled React frontend freedom
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