NestJS如何将自定义Logger添加到自定义ExceptionFilter
我正在使用NestJS 5.4.0我有自定义LoggerService,它运行良好。但是,如何将这个LoggerService添加到ExceptionFilter。
// logger.service.ts
import {Injectable, LoggerService} from '@nestjs/common';
@Injectable()
export class Logger implements LoggerService {
log(message: string) {
console.log(message);
}
error(message: string, trace: string) {
console.error(message);
}
warn(message: string) {
console.warn(message);
}
}
//logger.module.ts
import { Module } from '@nestjs/common';
import {Logger} from '../services/logger.service';
@Module({
providers: [Logger],
exports: [Logger],
})
export class LoggerModule {}
// user.module.ts
import { Module } from '@nestjs/common';
import {UserService} from '../services/user.service';
import {LoggerModule} from './logger.module';
@Module({
imports: [LoggerModule],
providers: [UserService],
exports: [UserService],
})
export class UserModule {}
运行良好。
import {Logger} from './logger.service';
export class UserService {
constructor(
private logger: Logger
) {}
private test = () => {
this.logger.log("test"); // log success "test" to console
}
}
但是如何将自定义记录器添加到ExceptionFilter
// forbidden.exception.filter.ts
import {HttpException, HttpStatus, Injectable} from '@nestjs/common';
@Injectable()
export class ForbiddenException extends HttpException {
constructor(message?: string) {
super(message || 'Forbidden', HttpStatus.FORBIDDEN);
// I want to add my custom logger here!
}
}
感谢阅读。
回答如下: