nestjs-google-auth/src/auth/auth.controller.ts

A reusable NestJS module for Google authentication using Passport.

import { Controller, Get, Req, Res, UseGuards } from "@nestjs/common";
import { AuthGuard } from "@nestjs/passport";
import { Request, Response } from "express";

@Controller("auth")
export class GoogleAuthController {
  @Get("google")
  @UseGuards(AuthGuard("google"))
  async googleAuth() {}

  @Get("google/callback")
  @UseGuards(AuthGuard("google"))
  async googleAuthRedirect(@Req() req: Request, @Res() res: Response) {
    const user = req.user;
    return res.json({ message: "Logged in successfully!", user });
  }
}