diff --git a/.env.example b/.env.example
deleted file mode 100644
index 0a48e9f..0000000
--- a/.env.example
+++ /dev/null
@@ -1,13 +0,0 @@
-PORT= ********************************
-APP_ENV= ********************************
-PDN_DB_NAME= *****************************
-DEV_DB_HOST= ********************************
-DEV_DB_PORT= ********************************
-DEV_DB_USER= ********************************
-DEV_DB_PASS= ***************************** 
-DEV_DB_TYPE= *******************************
-
-PDN_DB_HOST= ********************************
-PDN_DB_PORT= ********************************
-PDN_DB_USER= ********************************
-PDN_DB_PASS= ********************************
\ No newline at end of file
diff --git a/package.json b/package.json
index 84a5b11..b434d0f 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,9 @@
     "jsend": "^1.1.0",
     "morgan": "^1.10.0",
     "nodemon": "^3.1.0",
+    "passport": "^0.7.0",
+    "passport-facebook": "^3.0.0",
+    "passport-google-oauth20": "^2.0.0",
     "pg": "^8.11.5",
     "reflect-metadata": "^0.2.2",
     "source-map-support": "^0.5.21",
@@ -57,6 +60,9 @@
     "@types/jsend": "^1.0.32",
     "@types/morgan": "^1.9.9",
     "@types/node": "^20.12.7",
+    "@types/passport": "^1.0.16",
+    "@types/passport-facebook": "^3.0.3",
+    "@types/passport-google-oauth20": "^2.0.14",
     "@types/reflect-metadata": "^0.1.0",
     "@types/supertest": "^6.0.2",
     "@types/winston": "^2.4.4",
@@ -75,4 +81,4 @@
     "typescript": "^5.4.5",
     "typescript-eslint": "^7.7.1"
   }
-}
\ No newline at end of file
+}
diff --git a/src/controllers/authController.ts b/src/controllers/authController.ts
index 209a350..a98cece 100644
--- a/src/controllers/authController.ts
+++ b/src/controllers/authController.ts
@@ -1,5 +1,5 @@
 import { Request, Response } from 'express';
-import { User } from '../entities/User';;
+import { User } from '../entities/User';
 import bcrypt from 'bcrypt';
 import { getRepository } from 'typeorm';
 
diff --git a/src/controllers/facebook.auth.ts b/src/controllers/facebook.auth.ts
new file mode 100644
index 0000000..e00fd6d
--- /dev/null
+++ b/src/controllers/facebook.auth.ts
@@ -0,0 +1,38 @@
+import { getRepository } from 'typeorm';
+import { User } from '../entities/user.auth'; 
+
+async function findUserAccountIdProvider(accountId: string, provider: string): Promise<User | undefined> {
+    try {
+      const userRepository = getRepository(User);
+  
+      const user = await userRepository.findOne({
+        where: {
+          accountId: accountId,
+          provider: provider,
+        },
+      });
+  
+      if (user === null) {
+        return undefined;
+      }
+  
+      return user as User; 
+    } catch (error) {
+      console.error('Error finding user:', error);
+      return undefined;
+    }
+  }
+const accountId = 'your_account_id';
+const provider = 'facebook';
+
+findUserAccountIdProvider(accountId, provider)
+  .then((user) => {
+    if (user) {
+      console.log('User found:', user);
+    } else {
+      console.log('User not found');
+    }
+  })
+  .catch((error) => {
+    console.error('Error:', error);
+  });
diff --git a/src/entities/User.ts b/src/entities/User.ts
index 2d0557f..2ab958c 100644
--- a/src/entities/User.ts
+++ b/src/entities/User.ts
@@ -11,6 +11,15 @@ import {
   @Entity()
   @Unique(['email'])
   export class User {
+    save() {
+        throw new Error('Method not implemented.');
+    }
+    static create(arg0: { accountId: string; name: string; provider: string; }): User | PromiseLike<User | null> | null {
+        throw new Error('Method not implemented.');
+    }
+    static findOne(arg0: { accountId: any; provider: string; }) {
+        throw new Error('Method not implemented.');
+    }
     @PrimaryGeneratedColumn('uuid')
     @IsNotEmpty()
     id!: string;
@@ -66,4 +75,20 @@ import {
   
     @UpdateDateColumn()
     updatedAt!: Date;
+
+    @Column({ nullable: true })
+    @IsString()
+    accountId?: string;
+  
+    @Column({ nullable: true })
+    @IsString()
+    name?: string;
+  
+    @Column({ nullable: true })
+    @IsString()
+    photoURL?: string;
+  
+    @Column({ nullable: true })
+    @IsString()
+    provider?: string;
   }
\ No newline at end of file
diff --git a/src/entities/user.auth.ts b/src/entities/user.auth.ts
new file mode 100644
index 0000000..d8270bb
--- /dev/null
+++ b/src/entities/user.auth.ts
@@ -0,0 +1,22 @@
+import { Entity, PrimaryGeneratedColumn, Column, BaseEntity } from 'typeorm';
+
+@Entity()
+export class User extends BaseEntity {
+  @PrimaryGeneratedColumn('uuid')
+  id: string | undefined;
+
+  @Column({ type: 'text', nullable: true, unique: true })
+  email: string | undefined;
+
+  @Column({ type: 'text', nullable: true })
+  accountId: string | undefined; 
+
+  @Column({ type: 'text', nullable: true })
+    name!: string;
+
+  @Column({ type: 'text', nullable: true })
+  photoURL: string | undefined;
+
+  @Column({ type: 'text', nullable: true })
+  provider: string | undefined;
+}
diff --git a/src/index.ts b/src/index.ts
index 55443f6..0589776 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,14 +1,17 @@
 import express, { Request, Response } from 'express';
 import cors from 'cors';
-import dotenv from 'dotenv';
 import router from './routes';
 import { addDocumentation } from './startups/docs';
 import 'reflect-metadata';
+import { passportConfig } from './middlewares/auth';
+import dotenv from 'dotenv';
+dotenv.config();
 
 
 import { CustomError, errorHandler } from './middlewares/errorHandler';
 import morgan from 'morgan';
 import { dbConnection } from './startups/dbConnection';
+import passport from 'passport';
 dotenv.config();
 
 export const app = express();
@@ -32,6 +35,18 @@ dbConnection();
 const morganFormat = ':method :url :status :response-time ms - :res[content-length]';
 app.use(morgan(morganFormat));
 
+//passport
+passportConfig();
+
+//Google OAuth routes
+app.get('/auth/google', passport.authenticate('google', { scope: ['profile', 'email'] }));
+
+app.get('/auth/google/callback',
+  passport.authenticate('google', { failureRedirect: '/login' }),
+  (req, res) => {
+    res.redirect('/profile');
+  }
+);
 export const server = app.listen(port, () => {
   console.log(`[server]: Server is running at http://localhost:${port}`);
 });
\ No newline at end of file
diff --git a/src/middlewares/auth.ts b/src/middlewares/auth.ts
new file mode 100644
index 0000000..bbe7180
--- /dev/null
+++ b/src/middlewares/auth.ts
@@ -0,0 +1,21 @@
+import passport from 'passport';
+import { Strategy as GoogleStrategy } from 'passport-google-oauth20';
+
+export function passportConfig() {
+  const clientID = process.env.GOOGLE_CLIENT_ID;
+  const clientSecret = process.env.GOOGLE_CLIENT_SECRET;
+
+  if (!clientID || !clientSecret) {
+    throw new Error('Google client ID or client secret is missing.');
+  }
+
+  passport.use(new GoogleStrategy({
+      clientID,
+      clientSecret,
+      callbackURL: "/auth/google/callback"
+    },
+    (accessToken, refreshToken, profile, done) => {
+      done(null, profile);
+    }
+  ));
+}