InterceptorMethods

@tsed/di

Usage

import { InterceptorMethods } from "@tsed/di";

See /packages/di/src/common/interfaces/InterceptorMethods.ts.

Overview

interface InterceptorMethods {
    intercept(context: InterceptorContext, next?: InterceptorNext): any;
}

Description

Interface for implementing method interceptors.

Interceptors can modify method behavior, add logging, handle errors, or implement cross-cutting concerns. Classes decorated with @Interceptor() must implement this interface.

Usage

import {Interceptor, InterceptorContext, InterceptorMethods} from "@tsed/di";

@Interceptor()
class CacheInterceptor implements InterceptorMethods {
  intercept(context: InterceptorContext) {
    const cacheKey = `${context.propertyKey.toString()}:${JSON.stringify(context.args)}`;
    if (cache.has(cacheKey)) {
      return cache.get(cacheKey);
    }
    const result = context.next();
    cache.set(cacheKey, result);
    return result;
  }
}

intercept

intercept(context: InterceptorContext, next?: InterceptorNext): any;