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Nominatim

NominatimKit is a Swift wrapper for forward and reverse geocoding of OpenStreetMap data.

Why? Geocoding location data on iOS requires the use of CoreLocation and the user's permission to access location data. This permission if often not given. Even worse so, CLGeocoder can be quite inaccurate. If you want a lightweight and more reliable solution to geocode addressess and coordinates, NominatimKit comes to the rescue.

How? Nominatim is a search engine for OpenStreetMap data. NominatimKit uses the free Nominatim API to gather location data for specific geo coordinates or any free text query (i.e. addresses or landmarks).

Example

To run the example project, clone the repo, and run pod install from the Example directory first.

Installation

Nominatim is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'Nominatim'

Usage

Search for Addresses

Nominatim.getLocation(fromAddress: "Stephansplatz, 1010 Vienna, Austria", completion: {(error, location) -> Void in
      print("Geolocation of the Royal Palace of Stockholm:")
      print("lat = " + (location?.latitude)! + "   lon = " + (location?.longitude)!)
    })

Search for Landmarks

Nominatim.getLocation(fromAddress: "The Royal Palace of Stockholm", completion: {(error, location) -> Void in
      print("Geolocation of the Royal Palace of Stockholm:")
      print("lat = " + (location?.latitude)! + "   lon = " + (location?.longitude)!)
    })

Search with Latitude and Longitude

Nominatim.getLocation(fromLatitude: "55.6867243", longitude: "12.5700724", completion: {(error, location) -> Void in
      print("City for geolocation 55.6867243/12.5700724:")
      print(location?.city)
    })

Author

NominatimKit was created by Josef Moser. I am an independent software developer and co-founder of Cora Health and Cryptoradar.

Find me on: Github or Twitter

Contribution

We welcome contribution to this project by opening issues or pull request.

License

NominatimKit is available under the MIT license. See the LICENSE file for more info. If you'd like to acknowledge the author of NominatimKit, please set a link to this GitHub page.