# Main

***

Use the [Felt](/js-sdk-api-reference/main/felt.md) object to embed a new iframe, or connect to an existing embedded\
iframe.

Once you have connected to a Felt map (either by embedding or connecting to an existing\
iframe), you can use the [FeltController](/js-sdk-api-reference/main/feltcontroller.md) object to control the map.

To see what you can do with the map, see the documentation for the [FeltController](/js-sdk-api-reference/main/feltcontroller.md)\
interface and its constituent controllers.

## Example

```typescript
// embed the map
const map = await Felt.embed(container, "felt-map-abc-123");

// now the map is loaded and connected, you can use the FeltController interface
// to control the map. For instance, to get information about the layers
const layers = await map.getLayers();

// Or to set the viewport to a specific location and zoom level
await map.setViewport({
  center: { latitude: 37.8113, longitude: -122.2682 },
  zoom: 10,
});
```

## Controller

* [FeltController](/js-sdk-api-reference/main/feltcontroller.md)

## Instantiation

* [FeltEmbedOptions](/js-sdk-api-reference/main/feltembedoptions.md)
* [Felt](/js-sdk-api-reference/main/felt.md)


---

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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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.