CODEWITHSUNDEEP
firebasefluttergoogle-cloud-firestore
batuhand
batuhand

Reputation: 475

Flutter Streambuilder on new data

im currently using a streambuilder to get my order data from firestore for a restaurant app and i want to make something when new order arrives, like a notification or something. How can i know if a new order added to database?

Upvotes: 1

Views: 837

Answers (1)

Szepetry
Szepetry

Reputation: 48

You can subscribe to the stream you give in the "stream" field of your StreamBuilder and use that subscription created to call the onData property of StreamSubscription. It will call the function present inside it whenever new data is added.

Example:

Stream stream = <YOUR STREAM HERE>;
StreamSubscription streamSub;

String actionTaken(dynamic data){
    return data;
}

//call the code below in initState if you want to start it with the app.
streamSub = stream.listen(actionTaken);
subscription.onData((data){ 

});

Upvotes: 1

Related Questions