Command-line & server apps
Handy for both beginners and experts, DartPad lets you try out language features and dart:* APIs.
Note: DartPad does not support using dart:io APIs or importing libraries from packages.
to get the core Dart libraries and tools.
The page links to generally useful tools, such as Dart plugins for your favorite IDE or editor.
You might find the following tutorials helpful.
Learn how to use the Dart SDK to develop command-line and server apps.
Walks you through running and modifying a client-server example that uses the gRPC framework.
Introduces dart:io and the args package.
Features dart:io and the http_server package.
API reference for dart:* libraries.