added error event hooks

core/app.go

@@ -92,6 +92,16 @@ type App interface {
 	// allowing you to adjust its options and attach new routes.
 	OnBeforeServe() *hook.Hook[*ServeEvent]
 
+	// OnBeforeApiError hook is triggered right before sending an error API
+	// response to the client, allowing you to further modify the error data
+	// or to return a completely different API response (using [hook.StopPropagation]).
+	OnBeforeApiError() *hook.Hook[*ApiErrorEvent]
+
+	// OnAfterApiError hook is triggered right after sending an error API
+	// response to the client.
+	// It could be used to log the final API error in external services.
+	OnAfterApiError() *hook.Hook[*ApiErrorEvent]
+
 	// ---------------------------------------------------------------
 	// Dao event hooks
 	// ---------------------------------------------------------------

core/base.go

@@ -43,6 +43,8 @@ type BaseApp struct {
 	onBeforeBootstrap *hook.Hook[*BootstrapEvent]
 	onAfterBootstrap  *hook.Hook[*BootstrapEvent]
 	onBeforeServe     *hook.Hook[*ServeEvent]
+	onBeforeApiError  *hook.Hook[*ApiErrorEvent]
+	onAfterApiError   *hook.Hook[*ApiErrorEvent]
 
 	// dao event hooks
 	onModelBeforeCreate *hook.Hook[*ModelEvent]
@@ -135,6 +137,8 @@ func NewBaseApp(dataDir string, encryptionEnv string, isDebug bool) *BaseApp {
 		onBeforeBootstrap: &hook.Hook[*BootstrapEvent]{},
 		onAfterBootstrap:  &hook.Hook[*BootstrapEvent]{},
 		onBeforeServe:     &hook.Hook[*ServeEvent]{},
+		onBeforeApiError:  &hook.Hook[*ApiErrorEvent]{},
+		onAfterApiError:   &hook.Hook[*ApiErrorEvent]{},
 
 		// dao event hooks
 		onModelBeforeCreate: &hook.Hook[*ModelEvent]{},
@@ -405,6 +409,14 @@ func (app *BaseApp) OnBeforeServe() *hook.Hook[*ServeEvent] {
 	return app.onBeforeServe
 }
 
+func (app *BaseApp) OnBeforeApiError() *hook.Hook[*ApiErrorEvent] {
+	return app.onBeforeApiError
+}
+
+func (app *BaseApp) OnAfterApiError() *hook.Hook[*ApiErrorEvent] {
+	return app.onAfterApiError
+}
+
 // -------------------------------------------------------------------
 // Dao event hooks
 // -------------------------------------------------------------------

core/events.go

@@ -25,6 +25,11 @@ type ServeEvent struct {
 	Router *echo.Echo
 }
 
+type ApiErrorEvent struct {
+	HttpContext echo.Context
+	Error       error
+}
+
 // -------------------------------------------------------------------
 // Model DAO events data
 // -------------------------------------------------------------------