Improved submit-result command.

app/Console/Commands/SubmitResult.php

@@ -43,9 +43,15 @@ class SubmitResult extends Command
         $data = fread($file, filesize($filename));
         fclose($file);
 
+        $decoded = json_decode($data);
+        if ($decoded === null) {
+            $this->error("File doesn't contain valid JSON.");
+            return 1;
+        }
+
         Result::create([
             'id' => null,
-            'data' => $data,
+            'data' => $decoded,
             'ip' => '127.0.0.1',
             'session_id' => 'ARTISAN_COMMAND',
         ]);