In order for development process to be more friendly you may add a panel to Yii2 debug module. The panel displays a counter and a list of queued tasks.
yiisoft/yii2-debug
should be installed in your application in order for the panel to be displayed.
Configure your application like the following:
return [
'bootstrap' => ['debug', 'queue'],
'modules' => [
'debug' => [
'class' => \yii\debug\Module::class,
'panels' => [
'queue' => \zhuravljov\yii\queue\debug\Panel::class,
],
],
],
];