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## ⁠5.2. Url handler

### ⁠5.2.1. Introduction

In order to allow installation of AppStream components from websites, software-centers implementing AppStream may choose to also support the `appstream://` urls.
This allows upstream projects to trigger an installation of their application from their homepage on any supporting distribution. It also is helpful for web-based software-centers.

### ⁠5.2.2. URL schema

Software-centers handling `appstream://` URLs must provide a handler for the `x-scheme-handler/appstream` mimetype. An AppStream URL follows the schema `appstream://%{component-id}`.
Example HTML code:

    ​<a href="appstream://org.kde.discover.desktop">Install KDE Discover</a>
    ​<a href="appstream://org.gnome.Software.desktop">Install GNOME-Software</a>
    ​<a href="appstream://org.freedesktop.AppStream">Install libappstream</a>

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