## Find features near a geographic point

`client.Elements.NearbyPost(ctx, body) (*FeatureCollection, error)`

**post** `/api/v1/features/nearby`

Find features near a geographic point

### Parameters

- `body ElementNearbyPostParams`

  - `Lat param.Field[float64]`

    Legacy shorthand. Latitude (-90 to 90). Use near param instead.

  - `Limit param.Field[int64]`

    Maximum results (default 20, max 100)

  - `Lng param.Field[float64]`

    Legacy shorthand. Longitude (-180 to 180). Use near param instead.

  - `Near param.Field[string]`

    Point geometry for proximity search (lat,lng or GeoJSON). Alternative to lat/lng params.

  - `OutputBuffer param.Field[float64]`

    Buffer geometry by meters

  - `OutputCentroid param.Field[bool]`

    Replace geometry with centroid

  - `OutputFields param.Field[string]`

    Comma-separated property fields to include

  - `OutputGeometry param.Field[bool]`

    Include geometry (default true)

  - `OutputInclude param.Field[string]`

    Extra computed fields: bbox, distance, center

  - `OutputPrecision param.Field[int64]`

    Coordinate decimal precision (1-15, default 7)

  - `OutputSimplify param.Field[float64]`

    Simplify geometry tolerance in meters

  - `OutputSort param.Field[string]`

    Sort by: distance, name, osm_id

  - `Radius param.Field[int64]`

    Search radius in meters (default 500, max 10000)

### Returns

- `type FeatureCollection struct{…}`

  GeoJSON FeatureCollection (RFC 7946). For paginated endpoints, metadata is returned in HTTP response headers rather than the body:

| Header          | Description                                      |
| --------------- | ------------------------------------------------ |
| `X-Limit`       | Requested result limit                           |
| `X-Has-More`    | `true` if more results exist                     |
| `X-Next-Cursor` | Opaque cursor for next page (cursor pagination)  |
| `X-Next-Offset` | Numeric offset for next page (offset pagination) |
| `Link`          | RFC 8288 `rel="next"` link to the next page      |

  Content-Type is `application/geo+json`.

  - `Features []GeoJsonFeature`

    Array of GeoJSON Feature objects

    - `Geometry GeoJsonGeometry`

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

      - `Coordinates GeoJsonGeometryCoordinatesUnion`

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

        - `type GeoJsonGeometryCoordinatesPoint []float64`

          [longitude, latitude] or [longitude, latitude, elevation]

        - `type GeoJsonGeometryCoordinatesLineStringOrMultiPoint [][]float64`

          Array of [lng, lat] positions

        - `type GeoJsonGeometryCoordinatesPolygonOrMultiLineString [][][]float64`

          Array of linear rings / line strings

        - `type GeoJsonGeometryCoordinatesMultiPolygon [][][][]float64`

          Array of polygons

      - `Type GeoJsonGeometryType`

        Geometry type

        - `const GeoJsonGeometryTypePoint GeoJsonGeometryType = "Point"`

        - `const GeoJsonGeometryTypeLineString GeoJsonGeometryType = "LineString"`

        - `const GeoJsonGeometryTypePolygon GeoJsonGeometryType = "Polygon"`

        - `const GeoJsonGeometryTypeMultiPoint GeoJsonGeometryType = "MultiPoint"`

        - `const GeoJsonGeometryTypeMultiLineString GeoJsonGeometryType = "MultiLineString"`

        - `const GeoJsonGeometryTypeMultiPolygon GeoJsonGeometryType = "MultiPolygon"`

    - `Properties map[string, unknown]`

      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 GeoJsonFeatureType`

      Always `Feature`

      - `const GeoJsonFeatureTypeFeature GeoJsonFeatureType = "Feature"`

    - `ID string`

      Compound identifier in `type/osm_id` format

  - `Type FeatureCollectionType`

    Always `FeatureCollection`

    - `const FeatureCollectionTypeFeatureCollection FeatureCollectionType = "FeatureCollection"`

### Example

```go
package main

import (
  "context"
  "fmt"

  "github.com/plazafyi/plaza-go"
  "github.com/plazafyi/plaza-go/option"
)

func main() {
  client := githubcomplazafyiplazago.NewClient(
    option.WithAPIKey("My API Key"),
  )
  featureCollection, err := client.Elements.NearbyPost(context.TODO(), githubcomplazafyiplazago.ElementNearbyPostParams{

  })
  if err != nil {
    panic(err.Error())
  }
  fmt.Printf("%+v\n", featureCollection.Features)
}
```

#### Response

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