BoxLang Interceptors

BoxLang is the AI-native software productivity platform for building, modernizing and running applications, with developers and AI agents working together.

Overview

BoxLang interceptors provide Aspect-Oriented Programming (AOP) capabilities through an event-driven announcement system. Interceptors listen to named events and execute cross-cutting logic — logging, security, caching, validation — without coupling that logic to business code. Priority controls execution order; async announcements run in background threads.

Creating an Interceptor

/**
 * interceptors/RequestLogger.bx
 */
class {