Image Upload with javascript validation in Laravel

Step#01

Create blade page in View

image_upload.blade.php

 

<form class="form-horizontal" method="post" action="{{ route('add-job-application') }}" enctype="multipart/form-data">
  @csrf

<div class="col-md-6 mb-3">
  <label for="validationTooltip04">Photo</label>
  <input type="file" name="photo" class="form-control photo" id="photo" onchange='image(this)'>
   
  <div class="panel-body center-block" style="margin-top: 5px;">
    <img id="showPhoto"  src="" style="height:200px;width:200px;border-width:0px;">
  </div>
</div>

</form >

Modal for alert

<div class="modal fade" id="error_modal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel"
     aria-hidden="true">
  <div class="modal-dialog" role="document" style="width: 30%;">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
        <h4 class="modal-title" id="myModalLabel" style="color: red;">Warning</h4>
      </div>
      <div id="warning_message" class="modal-body"></div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary btn-danger" data-dismiss="modal" style="color:white;">
          Cancel
        </button>
      </div>
    </div>
  </div>
</div>

<script type="text/javascript">

    /*----------------Start  photo show ---------------------------*/
    function image(input) {
        var fup = document.getElementById('photo');
        var fileName = fup.value;
        var extension = fileName.substring(fileName.lastIndexOf('.') + 1);
        if (extension === 'jpg' || extension === 'jpeg' || extension === 'png' || extension === 'gif') {
            var file_size = '';
            var photo = $('.photo ').val();
            if (photo) {
                var file_size = $('.photo')[0].files[0].size;
            }
            if (file_size > 80000) {
                $('.photo').val('');
                $('#showPhoto').attr('src', '');
                $('#warning_message').text("The photo may not be greater than 80KB");
                $('#error_modal').modal(300, 'show');
                return false;
            }
            if (input.files && input.files[0]) {
                var reader = new FileReader();
                reader.onload = function (e) {
                    $('#showPhoto').attr('src', e.target.result);
                };
                reader.readAsDataURL(input.files[0]);
            }
        } else {
            $('.photo').val('');
            $('#showPhoto').attr('src', '');
            $('#warning_message').text("Only JPEG, JPG, PNG or GIF type images are allowed");
            $('#error_modal').modal(300, 'show');
            return false;
        }
    }

   
    /*----------------End photo show ---------------------------*/
</script>

Step#02

Route::post('add-job-application', 'HomeController@addJobApplication')->name('add-job-application');

Step#03 

public function addJobApplication(Request $request){ 

$input = $request->all(); 

$image = $request->file('photo');
if($image){
    $imgName=md5(str_random(30).time().'_'.$request->file('photo')).'.'.$request->file('photo')->getClientOriginalExtension();
    Image::make($request->file('photo'))->resize(600, 600)->save(public_path('frontEnd/uploads/applicationPhoto/') . $imgName);
    $input['photo']=$imgName;
}

  

JobApplication::create($input);

}