You can set filters, data, buttons and all of the fields available on [OneSignal Documentation](https://documentation.onesignal.com/reference#create-notification)
You can set filters, data, buttons and all of the fields available on [OneSignal Documentation](https://documentation.onesignal.com/reference#create-notification)
tr:"Test mesajı"
by using `postBody` JSON variable.
},
```js
contents:{"en":"Old content"}
varfirstNotification=newOneSignal.Notification({
});
contents:{
en:"Test notification",
// You can change notification body later by changing postBody