php - auth()->user() returns null after updating user -

so have page user update username,email,avatar i'm having issue auth()->user() . when user updates username or email or avatar goes okay , updates if tries view settings again after updating error trying property of non object after did dd(auth()->user()) seems auth()->user() null , way fix manually logout , change settings again becomes sort of repetitive . code:

public function edit(request $request) {     $user = auth()->user();     //if user did change username or email or both.     if(!$request->username === $user->username || !$request->email === $user->email)     {         $this->validate($request,[            'username' => 'min:1|unique:users',            'email' => 'min:1|unique:users|email',            'avatar' => 'mimes:jpeg,jpg,gif,png'         ]);     }     //check if user trying update avatar     if($request->file('avatar'))     {         $image = $request->file('avatar');         $image->store('avatars','s3');         $name = $image->hashname();         $src = "https://d1nm0o13p1ms88.cloudfront.net/avatars/$name";         $user->avatar($src);     }     $user->username = $request->username;     $user->email = $request->email;     $user->save();     $old = $request->session()->get('username');     $request->session()->flush();     $request->session()->put('username',$request->username); } 

settings.blade.php

{{--this returns session--}} {{dd(session::get('username'))}} {{--this returns null--}} {{dd(auth()->user())}} <div class="settings"> <div class="ui top attached tabular menu">     <a class="active item">tab</a> </div> <div class="ui bottom attached active tab segment">     @if (count($errors) > 0)         <div class="ui error message">             @foreach ($errors->all() $error)             <p>{{$error}}</p>             @endforeach         </div>     @endif     <form method="post" action="/settings" enctype="multipart/form-data">         {{csrf_field()}}     <div class="ui form">         <div class="field">             <label>username:</label>             <input type="text" name="username" value="{{auth()->user()->username}}">         </div>     </div>         <div class="ui form" style="margin-top: 20px;">             <div class="field">                 <label>email:</label>                 <input type="text" name="email" value="{{auth()->user()->email}}">             </div>         </div>         <div class="ui form" style="margin-top: 20px;">             <div class="field">                 <label>avatar:</label>                 <img src="{{auth()->user()->avatar}}" style="width:180px; height:180px;"> <br>                 <input type="file" name="avatar">             </div>         </div>         <input class="ui button" type="submit" value="save" style="margin-top: 30px;">     </form> </div> </div> 

this line

$request->session()->flush(); 

is clearing session , data. therefore, user logged out.

you can fix this

$old = $request->session()->get('username'); $request->session()->flush(); $request->session()->put('username',$request->username); auth()->login($user);