Completely Login your site using Facebook, Here Backend - Laravel(php) & Frontend - Ionic(for mobile app)

Completely Login through Facebook:

Hi all, Today i am here for writing an article which is used for login your mobile app through Facebook.

Here, i am doing this using APIs. So, my backend is Laravel Framework(PHP)  & my frontend is Ionic Framework(mobile app).

Backend:

Just write down these function after your login function in your model .

    public function fbLogin(){
        $input = Input::all();          //getting all data(name,email,fb_id) from frontend
        $email = $input['email'];
        $fbId = $input['fb_id'];
        $firstName = $input['first_name'];
        $lastName = $input['last_name'];

        $user = DB::table('users')
            ->where('username', $email)
            ->orWhere('fb_id', $fbId)
            ->get();
        $noOfRow = count($user);   //getting data from table w.r.t. email



//in case where fb_id & email are exists in DB & same as getting data  row will show 1, in case fb_id $email exists in DB but not both are same then case =2, in case when both does not exists case = 0
      if($noOfRow==1){
            DB::table('users')->where('username', $email)->update(array('fb_id' => $fbId));      
            $userID = $user[0]->id;
        }elseif($noOfRow==2){
            foreach($user as $v){
                if($v->fb_id==$fbId){
                    $userID = $v->id;
                }
            }
        }else{
            if($email){
               return $this->doLoginforFB($email,$fbId, $firstName,$lastName );
            }else{
                $timeStamp = md5(microtime());
                $dummyEmail = $timeStamp.'@dummy.com'; //creating dummy email
                return $this->doLoginforFB($dummyEmail,$fbId, $firstName,$lastName );
            }
        }
         return $this->getUsersDetailsById($userID);
    }

    public function doLoginforFB($email,$fbId, $firstName,$lastName ){
        $password = mt_rand(10000000, 99999999);  //creating a dummy password
        $hashPass = Hash::make($password);

        $newUser = new User();
        $newUser->username = $email;
        $newUser->password = $hashPass;
        $newUser->fb_id = $fbId;
        $newUser->save();

        $this->RegisterStep($newUser->id);

        DB::table('users_details')->insert(
            array('firstname' => $firstName, 'lastname' => $lastName, 'user_id'=>$newUser->id)
        );

       
        $input['username'] = $email;
        $input['password'] = $password;

        Input::replace($input);

        $request = Request::create('oauth/login', 'POST');  //laravel way for passing parms in doLogin function or you can call here your Login function
        $response = Route::dispatch($request);
        return $response;
    }












Frontend:

Accordingly using this i have created my Frontend.

Just follow its steps and get all the details of any user like email, fb_id , name and send it to your backend.

After that make a build and check it out if its working

Thanks
Ashish Ginotra