passport in nestjs use multiple strategy example

readme.MD

Krorean

nestjs에서 passport를 사용하여 하나의 서버에서 여러 개의 app에 맞는 서비스를 제공하기 위해 CustomGuard를 작성했습니다.

English

I make CustomGuard to provide services for multiple apps on one server using passport in nestjs.

passport.custom.gaurd.ts

import { CanActivate, ExecutionContext, Injectable } from '@nestjs/common';
import { ConfigService } from '@nestjs/config';
import { PassportStrategy } from '@nestjs/passport';
import { Profile, Strategy } from 'passport-kakao';

export class KakaoProvider {
  constructor(
    public readonly clientID: string,
    public readonly response_type: string,
    public readonly clientSecret: string,
    public readonly callbackURL: string,
  ) {}
}

@Injectable()
export class KakaoStrategy extends PassportStrategy(Strategy) {
  constructor(provider?: KakaoProvider) {
    super({
      response_type: 'code',
      clientID: provider.clientID || '0',
      clientSecret: '',
      callbackURL: provider.callbackURL || '',
    });
  }

  async validate(accessToken: string, refreshToken: string, profile: Profile, done: (error, user, info) => void) {
    try {
      done(null, accessToken);
    } catch (e) {
      done(e);
    }
  }
}

@Injectable()
export class KakaoCustomGuard implements CanActivate {
  constructor(private kakaoConfigService: ConfigService) {}
  async canActivate(context: ExecutionContext) {
    const req = context.switchToHttp().getRequest();
    const appKey = req.query.appKey;
    if (appKey === 'app1') {
      new KakaoStrategy({
        response_type: 'code',
        clientID: this.kakaoConfigService.get('PASSPORT_HARMONY_KAKAO_CLIENT_ID'),
        clientSecret: '',
        callbackURL: this.kakaoConfigService.get('PASSPORT_KAKAO_REDIRECT_URL'),
      });
    } else if (appKey === 'app2') {
      new KakaoStrategy({
        response_type: 'code',
        clientID: this.kakaoConfigService.get('PASSPORT_SPARK_KAKAO_CLIENT_ID'),
        clientSecret: '',
        callbackURL: this.kakaoConfigService.get('PASSPORT_KAKAO_REDIRECT_URL'),
      });
    }
    return true;
  }
}