HTMX Endpoint Patterns with SimplyPages

HTMX works best when each endpoint returns a clear fragment target with minimal side effects.

Targeted Fragment Updates

Use endpoint-level rendering for specific module or container updates, not whole-page rebuilds.

Keep Routing Intentional

Each fragment route should map to one visible swap responsibility to reduce coupling.

OOB Updates Where Needed

Use out-of-band updates for coordinated UI state changes across multiple page regions.

Works with Existing Controllers

Controllers can return full shell for normal requests and fragments for HX-Request calls.