App Package Overview
This page provides an overview of an app package and its components.
App Package
Here is the file structure of a sample app package:
Here are the key components of the package:
The app manifest, a JSON file that is stored at the root level of the app package.
The custom schema for the app settings.
A
widgetsfolder that contains subfolders for each widget.The subfolder for an admin widget. This subfolder contains the
index.htmlfile and other supplementary files that are used by this widget.A JavaScript file that contains the script for an additional module.
App Manifest
Each app package must include a manifest.json file at the root of the package directory. The manifest file provides general information about the app, such as the title, description, and the list of modules that this app includes.
To learn more about app manifests, see App Manifest.
App Settings
As an app developer, you have the option to provide a schema of custom settings for your app. The setting schema is described in a settings.json file. These settings are then accessible for configuration on the Settings tab of the app.
To learn more about custom settings for your app, see App Settings.
Widgets
To modify the appearance of YouTrack and develop your own extensions to the YouTrack UI, you can create widgets. You can embed your widget in several extension points in the YouTrack UI. For the complete list of these extension points, see Extension Points.
Here you can see an example of a widget as described in the manifest:
{
"name": "Sample Widget",
"key": "sample-widget",
"indexPath": "index.html",
"place": "ISSUE_FIELD_PANEL_FIRST",
"description": "Optional widget description",
"iconPath": "icon.png"
}Here you can see a sample index.html file containing the source code for this widget:
<!doctype html>
<html>
<head>
<link rel="stylesheet" href="../index.css">
</head>
<body class="plugin" style="padding: 0; overflow: hidden;">
<img src="logo.jpeg" style="width: 100%; height: 100%; object-fit: cover;"/>
<script type="module">
const host = await YTApp.register();
</script>
</body>
</html>JavaScript Modules
You can add various JavaScript-based modules to your app: custom HTTP handlers, workflow rules, import scripts, and SLA rules. To learn more about JavaScript modules for apps, see App Reference.
You must store the source code for each module in a separate file .js file.