Disable IP address Geolocalizaiton for GDPR related issues on iOS (davide-scalzo#145)

* Added method to disalbe ip address geolocalization on iOS

* Exporting the method

* Fixed typo

Author: racingDeveloper

RNMixpanel/Mixpanel.h

@@ -93,6 +93,21 @@
  */
 @property (atomic) NSUInteger flushInterval;
 
+/*!
+ @property
+ 
+ @abstract
+ Controls whether to automatically send the client IP Address as part of
+ event tracking. With an IP address, geo-location is possible down to neighborhoods
+ within a city, although the Mixpanel Dashboard will just show you city level location
+ specificity. For privacy reasons, you may be in a situation where you need to forego
+ effectively having access to such granular location information via the IP Address.
+ 
+ @discussion
+ Defaults to YES.
+ */
+@property (atomic) BOOL useIPAddressForGeoLocation;
+
 /*!
  @property
 

RNMixpanel/RNMixpanel.m

@@ -86,6 +86,14 @@ -(Mixpanel*) getInstance: (NSString *)name {
     resolve(nil);
 }
 
+// disable ip address geolocalization
+RCT_EXPORT_METHOD(disableIpAddressGeolocalization:(NSString *)apiToken
+                  resolve:(RCTPromiseResolveBlock)resolve
+                  reject:(RCTPromiseRejectBlock)reject) {
+    [self getInstance:apiToken].useIPAddressForGeoLocation = NO;
+    resolve(nil);
+}
+
 // track with properties
 RCT_EXPORT_METHOD(trackWithProperties:(NSString *)event
                   properties:(NSDictionary *)properties

index.js

@@ -71,6 +71,11 @@ export class MixpanelInstance {
     return RNMixpanel.flush(this.apiToken)
   }
 
+  disableIpAddressGeolocalization(): Promise<void> {
+    if (!this.initialized) throw new Error(uninitializedError('disableIpAddressGeolocalization'))
+    return RNMixpanel.disableIpAddressGeolocalization(this.apiToken)
+  }
+
   alias(alias: string): Promise<void> {
     if (!this.initialized) throw new Error(uninitializedError('createAlias'))
 
@@ -241,6 +246,12 @@ export default {
     defaultInstance.flush()
   },
 
+  disableIpAddressGeolocalization() {
+      if (!defaultInstance) throw new Error(NO_INSTANCE_ERROR)
+
+      defaultInstance.disableIpAddressGeolocalization()
+  },
+
   createAlias(alias: string) {
     if (!defaultInstance) throw new Error(NO_INSTANCE_ERROR)