# Main

***

Use the [Felt](https://developers.felt.com/js-sdk-api-reference/main/felt) 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](https://developers.felt.com/js-sdk-api-reference/main/feltcontroller) object to control the map.

To see what you can do with the map, see the documentation for the [FeltController](https://developers.felt.com/js-sdk-api-reference/main/feltcontroller)\
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](https://developers.felt.com/js-sdk-api-reference/main/feltcontroller)

## Instantiation

* [FeltEmbedOptions](https://developers.felt.com/js-sdk-api-reference/main/feltembedoptions)
* [Felt](https://developers.felt.com/js-sdk-api-reference/main/felt)