Command-line & server libraries and packages

The Dart SDK contains dart:io and other libraries that provide low-level web APIs.

Complete reference documentation for the dart:io library.

Community packages

Command-line apps often use the following packages, in addition to such as , , and :

Server apps can choose from many packages, in addition to the packages listed in the previous table and such as :

Package	Description
appengine	Provides support for running server applications written in Dart on using Custom Runtimes with Flex Environment.
	Supports building scalable REST APIs that run on the Dart VM.
angel_framework	A high-powered HTTP server with support for dependency injection & sophisticated routing.
	Implements cryptographic hashing functions for algorithms such as SHA-1, SHA-256, MD5, and HMAC.
grpc	Implements a high performance, open source, general RPC framework that puts mobile and HTTP/2 first.
http_multi_server	Extends the class with support for multiple servers.
http_server	Provides utility classes that work with to serve web content.
shelf	Provides a model for web server middleware that encourages composition and easy reuse.