We may earn commission from our brand partners when purchasing products through our links. Learn more. I am assuming you have Dart installed on your machine, if not you can follow the instructions at https://dart.dev/get-dart. You can use regex to limit the capture of the path arguments, in this case the userId param needs to be only digits. Note how you can also used 'async' // With the server running try to open http://localhost:8080/user/132 and http://localhost:8080/user/a123

Anna Ryan is a writer, copywriter and editor. She has a wide range of knowledge and, because of this, has been able to contribute to a variety of different genres, including article and blog writing. The handler/middleware that will be used by the server, all the routing for the server will be implemented here. This article is mostly a gathering of examples from Shelf and its official add-ons. Where I add my own comments that helped me understand the project and building a web server with Shelf, more about that in the end of the blog post. Why Shelf # As an editor, she has polished and perfected an array of pieces for diverse readerships and audiences. Read More »The return =Response.ok= is our helper static function to return a 200 code result, but we have many other, such as, Response.found() for 302 redirects or Response.notFound() for 404 not founds and all other codes that you can expect.

Shelf, is a Web Server Middleware, not a full blown server framework like Django, it is modular, and you add add-ons for the functionalities you need. This modular structure gives the community an easy way to expand the project.Replies with the text inserted in the path, example: http://localhost:8080/say-hi/Filipe will prompt "hi Filipe". Do not confuse this add-on with shelf_cors that is not available for Dart 2.0 dart pub add shelf_cors_headers The core library for Shelf, gives you the main functionalities of a server. The following example shows the barebones of a simplest server you can start running with Shelf. Shelf Router #