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Is there an existing API to group a list of Future object into one so that I can wait for all to complete? Like in javascript's Promise.all.
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A future (lower case “f”) is an instance of the Future (capitalized “F”) class. A future represents the result of an asynchronous operation, and can have two states: uncompleted or completed. Note: Uncompleted is a Dart term referring to the state of a future before it has produced a value.
To prevent multiple awaits, chaining futures in . then(), you can simply use Future. wait([]) that returns an array of results you were waiting for. If any of those Futures within that array fails, Future.
A completer allows you to create and manage a future. Once you've instantiated a completer, you can use it to return a future to your API's callers, and when a lengthy asynchronous call returns data or an error, you can complete that future, delivering the result.
A Future class permits you to run work asynchronously to let loose whatever other threads ought not to be obstructed. Like the UI thread. In this blog, we will Explore Futures In Flutter. We will see how to use the future in your flutter applications.
You can use the Future.wait method documented here:
https://api.dart.dev/stable/2.5.0/dart-async/Future/wait.html
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