Class constructor MixinStrategy cannot be invoked without 'new'

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[ ] Regression 
[x ] Bug report
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

Class constructor MixinAuthGuard cannot be invoked without ‘new’

Expected behavior

normal

auth.module.ts
import { Module } from "@nestjs/common";
import { PassportModule } from "@nestjs/passport";
import { JwtModule } from "@nestjs/jwt";
import { AuthService } from "@modules/auth/auth.service";
import { JwtStrategy } from "@services/jwt.strategy";
import { AuthController } from "./auth.controller";

@Module({
    controllers: [AuthController],
    imports: [
        PassportModule.register({ defaultStrategy: "jwt" }),
        JwtModule.register({
            secretOrPrivateKey: "secretKey",
            signOptions: {
                expiresIn: 3600,
            },
        })
    ],
    providers: [AuthService, JwtStrategy],
    exports: [PassportModule, JwtModule],
})
export class AuthModule { }

jwt.strategy.ts
import { Injectable, UnauthorizedException } from "@nestjs/common";
import { PassportStrategy } from "@nestjs/passport";
import { ExtractJwt, Strategy } from "passport-jwt";
import { AuthService } from "@modules/auth/auth.service";
import { IJwtPayload } from "./interfaces/jwt.payload";

@Injectable()
export class JwtStrategy extends PassportStrategy(Strategy) {
    constructor(
        private readonly authService: AuthService,
    ) {
        super({
            jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
            secretOrKey: "secretKey",
        });
    }


    public async validate(payload: IJwtPayload) {
        const user = await this.authService.validateUser(payload);
        if (!user) {
            throw new UnauthorizedException();
        }
        return user;
    }
}

Environment

Nest version: 6.2.0

 
For Tooling issues:
- Node version: 10.15.3
- Platform: mac

Others:

I use platform-fastify

package.json

{
  "dependencies": {
    "@nestjs/common": "^6.2.0",
    "@nestjs/core": "^6.2.0",
    "@nestjs/jwt": "^6.0.0",
    "@nestjs/passport": "^6.0.0",
    "@nestjs/platform-express": "^6.2.0",
    "@nestjs/platform-fastify": "^6.2.0",
    "@nestjs/typeorm": "^6.1.1",
    "passport": "^0.4.0",
    "passport-jwt": "^4.0.0",
    "pg": "^7.11.0",
    "reflect-metadata": "^0.1.13",
    "rxjs": "^6.5.2",
    "typeorm": "^0.2.17"
  },
  "devDependencies": {
    "@types/node": "^12.0.0",
    "@types/passport-jwt": "^3.0.1",
    "nodemon": "^1.19.0",
    "ts-node": "^8.1.0",
    "tsconfig-paths": "^3.8.0",
    "tslint": "^5.16.0",
    "typescript": "^3.4.5"
  }
}

[kamilmysliwiec]

Change target to es6

[lock[bot]]

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