| This tutorial shows you how to implement a FIDL protocol | |
| (`fuchsia.examples.Echo`) and run it on Fuchsia. This protocol has one method | |
| of each kind: a fire and forget method, a two-way method, and an event: | |
| ```fidl | |
| {%includecode gerrit_repo="fuchsia/fuchsia" gerrit_path="examples/fidl/fuchsia.examples/echo.test.fidl" region_tag="echo" %} | |
| ``` | |
| For more on FIDL methods and messaging models, refer to the [FIDL concepts][concepts] page. | |
| This document covers how to complete the following tasks: | |
| * Implement a FIDL protocol. | |
| * Build and run a package on Fuchsia. | |
| * Serve a FIDL protocol. | |
| The tutorial starts by creating a component that is served to a Fuchsia device | |
| and run. Then, it gradually adds functionality to get the server up and running. |