[FIX] prevent submission with no value

app.py

@@ -22,8 +22,11 @@ def get_artist(path):
     :param path: The Artist to get files for
     :return: a status
     """
+    if path:
         proc = process_download(path)
         return {'status': 200, 'data': proc, 'artist': path}
+    else:
+        return {'status': 501}
 
 
 if __name__ == "__main__":

static/js/app.js

@@ -1,11 +1,19 @@
 $('#download_btn').on('click', () => {
     console.log('Clicked Download!');
     let artist = $('#search_bar').val();
+    // Prevent
+    $('#search_bar').val('');
+    console.log(artist);
+    if (artist) {
         $("#loader-wrapper").fadeIn(300);
         $.ajax({
             url: `/api/v1/get/${artist}`,
         }).done(function () {
-        artist.val('');
+            $('#search_bar').val('');
             $("#loader-wrapper").fadeOut(700);
         });
+    } else {
+        console.log('No artist');
+    }
+
 })