# Web Component
This page will give you an introduction on how to get started using the Map Template as a Web Component. In this guide you will learn how to install and use the Web Component step by step.
### Using NPM
Install the package:
`npm install @mapsindoors/map-template@stable`
In your script:
```javascript
import MapsIndoorsMap from '@mapsindoors/map-template/dist/mapsindoors-webcomponent.es.js';
window.customElements.define('mapsindoors-map', MapsIndoorsMap);
```
In your styles, make sure to give it a size. For example:
```css
mapsindoors-map {
display: block;
width: 100vw;
height: 100dvh;
}
```
Use the Web Component in your HTML:
```html
```
Add attributes to the Web Component as needed (see supported properties below).
**Note!** The `external-IDs` and `app-user-roles` expect an array, which in a Web Component is handled differently (see example below).
In your script, define the array of external IDs that you want to be shown on the Map Template. Then get a hold of the `mapsIndoorsMapElement` using the `document.querySelector()` method. When you have the `mapsIndoorsMapElement`, assign its prop `externalIDs` the array of External IDs that you defined at the beginning.
```javascript
const externalIDsArray = ["externalID-1", "externalID-2"]
const mapsIndoorsMapElement = document.querySelector('mapsindoors-map')
mapsIndoorsMapElement.externalIDs = externalIDsArray;
```
### Using just the browser
```html
My Map
```
Add attributes to the Web Component as needed ([see list](/products/fast-track-maptemplate/configuration.md)).
Use query parameters to configure the Web Component by setting the `supports-url-parameters` attribute to `true` in your `mapsindoors-map` component.
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.mapsindoors.com/products/fast-track-maptemplate/getting-started/web-component.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.