## Get feature by type and ID

`elements().lookup(ElementLookupParamsparams = ElementLookupParams.none(), RequestOptionsrequestOptions = RequestOptions.none()) : GeoJsonFeature`

**post** `/api/v1/features/lookup`

Get feature by type and ID

### Parameters

- `params: ElementLookupParams`

### Returns

- `class GeoJsonFeature:`

  GeoJSON Feature representing an OSM element. Tags from the original OSM element are flattened directly into `properties` (not nested under a `tags` key). Metadata fields `@type` and `@id` identify the OSM element type and ID within properties.

  - `geometry: GeoJsonGeometry`

    GeoJSON Geometry object per RFC 7946. Coordinates use [longitude, latitude] order. 3D coordinates [lng, lat, elevation] are used for elevation endpoints.

    - `coordinates: Coordinates`

      Coordinates array. Nesting depth varies by geometry type: Point = [lng, lat], LineString = [[lng, lat], ...], Polygon = [[[lng, lat], ...], ...], etc.

      - `List<Double>`

      - `List<List<Double>>`

      - `List<List<List<Double>>>`

      - `List<List<List<List<Double>>>>`

    - `type: Type`

      Geometry type

      - `POINT("Point")`

      - `LINE_STRING("LineString")`

      - `POLYGON("Polygon")`

      - `MULTI_POINT("MultiPoint")`

      - `MULTI_LINE_STRING("MultiLineString")`

      - `MULTI_POLYGON("MultiPolygon")`

  - `properties: Properties`

    OSM tags flattened as key-value pairs, plus `@type` (node/way/relation) and `@id` (OSM ID) metadata fields. May include `distance_m` for proximity queries.

  - `type: Type`

    Always `Feature`

    - `FEATURE("Feature")`

  - `id: Optional<String>`

    Compound identifier in `type/osm_id` format

### Example

```kotlin
package com.plazafyi.example

import com.plazafyi.client.PlazaClient
import com.plazafyi.client.okhttp.PlazaOkHttpClient
import com.plazafyi.models.GeoJsonFeature
import com.plazafyi.models.elements.ElementLookupParams

fun main() {
    val client: PlazaClient = PlazaOkHttpClient.fromEnv()

    val geoJsonFeature: GeoJsonFeature = client.elements().lookup()
}
```

#### Response

```json
{
  "geometry": {
    "coordinates": [
      2.3522,
      48.8566
    ],
    "type": "Point"
  },
  "properties": {
    "@id": "bar",
    "@type": "bar",
    "amenity": "bar",
    "cuisine": "bar",
    "name": "bar"
  },
  "type": "Feature",
  "id": "node/21154906"
}
```