Merge pull request #35 from mapbox/1ec5-host-582

Add host option

Author: 1ec5

MapboxGeocoder/MBGeocoder.swift

@@ -16,8 +16,14 @@ public class MBGeocoder: NSObject {
 
     private let configuration: MBGeocoderConfiguration
 
-    public init(accessToken: String) {
-        configuration = MBGeocoderConfiguration(accessToken)
+    /**
+     Initializes a newly created geocoder with the given access token and an optional host.
+     
+     - param accessToken: A Mapbox access token.
+     - param host: An optional hostname to the server API. The Mapbox Geocoding API endpoint is used by default.
+     */
+    public init(accessToken: String, host: String? = nil) {
+        configuration = MBGeocoderConfiguration(accessToken, host: host)
     }
 
     private var task: NSURLSessionDataTask?

MapboxGeocoder/MBGeocoderConfiguration.swift

@@ -5,7 +5,13 @@ internal struct MBGeocoderConfiguration: Configuration {
     internal var apiEndpoint: String = "https://api.mapbox.com"
     internal var accessToken: String?
 
-    internal init(_ accessToken: String) {
+    internal init(_ accessToken: String, host: String? = nil) {
         self.accessToken = accessToken
+        if let host = host {
+            let baseURLComponents = NSURLComponents()
+            baseURLComponents.scheme = "https"
+            baseURLComponents.host = host
+            apiEndpoint = baseURLComponents.string ?? apiEndpoint
+        }
     }
 }