> For the complete documentation index, see [llms.txt](https://developers.felt.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.felt.com/js-sdk-api-reference/layers/getlayercalculationparams.md).

# GetLayerCalculationParams

***

The parameters for calculating a single aggregate value for a layer, passed to\
the [LayersController.getAggregates](/js-sdk-api-reference/layers/layerscontroller.md#getaggregates) method.

## Type Parameters

| Type Parameter                                                                                      |
| --------------------------------------------------------------------------------------------------- |
| `T` *extends* [`AggregationMethod`](/js-sdk-api-reference/layers/aggregationmethod.md) \| `"count"` |

## Properties

### layerId

> **layerId**: `string`

The ID of the layer to calculate an aggregate value for.

***

### aggregation

> **aggregation**: [`MultiAggregationConfig`](/js-sdk-api-reference/layers/multiaggregationconfig.md)<`T`>

Specifies how to aggregate values within each category or bin. When omitted,\
features are counted. When specified, the chosen calculation (avg, sum, etc.)\
is performed on the specified attribute.

***

### filters?

> `optional` **filters**: [`Filters`](/js-sdk-api-reference/layers/filters.md)

Attribute filters for the features to include when calculating the aggregate value.

***

### boundary?

> `optional` **boundary**: [`GeometryFilter`](/js-sdk-api-reference/layers/geometryfilter.md)

The spatial boundary for the features to include when calculating the aggregate value.


---

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