NestJS + Next.js /2 View Module

view.controller.ts

import { Controller, Get, Res, Req } from '@nestjs/common';
import { Request, Response } from 'express';
import { parse } from 'url';

import { ViewService } from './view.service';

@Controller('/')
export class ViewController {
  constructor(private viewService: ViewService) {}

  @Get('home')
  public async showHome(@Req() req: Request, @Res() res: Response) {
    await this.viewService.handler(req, res);
  }

  @Get('_next*')
  public async assets(@Req() req: Request, @Res() res: Response) {
    await this.viewService.handler(req, res);
  }

  @Get('favicon.ico')
  public async favicon(@Req() req: Request, @Res() res: Response) {
    await this.viewService.handler(req, res);
  }
}

view.module.ts

import { Module } from '@nestjs/common';

import { ViewController } from './view.controller';
import { ViewService } from './view.service';

@Module({
  imports: [],
  providers: [ViewService],
  controllers: [ViewController],
})
export class ViewModule {}

view.service.ts

import { Injectable, OnModuleInit } from '@nestjs/common';
import { ConfigService } from '@nestjs/config';
import createServer from 'next';
import { NextServer } from 'next/dist/server/next';
import { Request, Response } from 'express';

@Injectable()
export class ViewService implements OnModuleInit {
  private server: NextServer;

  constructor(private configService: ConfigService) {}

  async onModuleInit(): Promise<void> {
    try {
      this.server = createServer({
        dev: this.configService.get<string>('NODE_ENV') !== 'production',
        dir: './src/client',
      });
      await this.server.prepare();
    } catch (error) {
      console.error(error);
    }
  }

  handler(req: Request, res: Response) {
    return this.server.getRequestHandler()(req, res);
  }
}