Select platform: [Android](https://developers.google.com/maps/documentation/android-sdk/utility/geojson.md.txt "View this page for the Android platform docs.") [iOS](https://developers.google.com/maps/documentation/ios-sdk/utility/geojson.md.txt "View this page for the iOS platform docs.") [JavaScript](https://developers.google.com/maps/documentation/javascript/datalayer.md.txt "View this page for the JavaScript platform docs.")

This page shows you how to render geographic data in the GeoJSON
format, using `GMUGeoJSONParser`, in
conjunction with `GMUGeometryRenderer`. GeoJSON is a popular
format for rendering geographic data such as points, lines, and polygons.

## Prerequisites and notes

`GMUGeoJSONParser` is part of
the [Maps SDK for iOS Utility Library](https://github.com/googlemaps/google-maps-ios-
utils). If you haven't yet set up
the library, follow the [setup guide](https://developers.google.com/maps/documentation/ios-
sdk/utility/setup) before reading the rest of this page.

For the full code sample, see the sample apps
[on
GitHub](https://github.com/googlemaps/google-maps-ios-utils).

## Rendering GeoJSON data

To render GeoJSON data on a map, create a `GMUGeoJSONParser` with
the path to a GeoJSON resource (`GeoJSON_sample.kml` in this
example). Then, create a `GMUGeometryRenderer`, passing the
`GMUKMLParser` instance. Finally, call
`GMUGeometryRenderer.render()`. The following code example shows
rendering GeoJSON data on a map:

### Swift

```swift
import GoogleMapsUtils

class GeoJSON {
  private var mapView: GMSMapView!

  func renderGeoJSON() {
    guard let path = Bundle.main.path(forResource: "GeoJSON_sample", ofType: "json") else {
      return
    }

    let url = URL(fileURLWithPath: path)

    let geoJsonParser = GMUGeoJSONParser(url: url)
    geoJsonParser.parse()

    let renderer = GMUGeometryRenderer(map: mapView, geometries: geoJsonParser.features)
    renderer.render()
  }
}
      
```

### Objective-C

```objective-c
@import GoogleMapsUtils;

@implementation GeoJSON {
  GMSMapView *_mapView;
}

- (void)renderGeoJSON {
  NSString *path = [[NSBundle mainBundle] pathForResource:@"GeoJSON_sample" ofType:@"json"];
  NSURL *url = [NSURL fileURLWithPath:path];
  GMUGeoJSONParser *parser = [[GMUGeoJSONParser alloc] initWithURL:url];
  [parser parse];
  GMUGeometryRenderer *renderer = [[GMUGeometryRenderer alloc] initWithMap:_mapView
                                                                geometries:parser.features];
  [renderer render];
}

@end
      
```