Introduction

Dart, besides being an excellent web programming language is, also suitable for writing server applications. In this chapter, we will specifically look at Dart's dart:io library to write web servers and their functionality. This library is built to work asynchronously so that the server can handle many requests at the same time (concurrently). It provides the class HttpRequest to write command-line clients. The Dart team also wrote the http_server package available from pub package manager. This package needs dart:io and provides some higher-level classes to make it easier to write clients and servers.