Merge pull request #135 from jakecronin/master

Allow disable flush on background

Author: zihejia

__tests__/jest_setup.js

@@ -20,6 +20,7 @@ jest.doMock('react-native', () => {
           initialize: jest.fn(),
           setServerURL: jest.fn(),
           setLoggingEnabled: jest.fn(),
+          setFlushOnBackground: jest.fn(),
           setUseIpAddressForGeolocation: jest.fn(),
           hasOptedOutTracking: jest.fn(),
           optInTracking: jest.fn(),

index.d.ts

@@ -7,6 +7,8 @@ export class Mixpanel {
     init(optOutTrackingDefault?: boolean, superProperties?: MixpanelProperties): Promise<void>;
     setServerURL(serverURL: string): void;
     setLoggingEnabled(loggingEnabled: boolean): void;
+    setFlushOnBackground(flushOnBackground: boolean): void;
+
     setUseIpAddressForGeolocation(useIpAddressForGeolocation: boolean): void;
     hasOptedOutTracking(): Promise<boolean>;
     optInTracking(): void;

index.js

@@ -106,6 +106,21 @@ export class Mixpanel {
         MixpanelReactNative.setLoggingEnabled(this.token, loggingEnabled);
     }
 
+     /**
+     * This allows enabling or disabling whether or not Mixpanel flushes events
+     * when the app enters the background on iOS. This is set to true by default. 
+     *
+     * @param {boolean} flushOnBackground whether to enable logging
+     *
+     */
+    setFlushOnBackground(flushOnBackground) {
+        if (Platform.OS === 'ios') {
+            MixpanelReactNative.setFlushOnBackground(this.token, flushOnBackground);
+        } else {
+            console.warn('Mixpanel setFlushOnBackground was called and ignored because this method only works on iOS.')
+        }
+    }
+
     /**
      * This 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,

ios/MixpanelReactNative.m

@@ -12,6 +12,8 @@ @interface RCT_EXTERN_MODULE(MixpanelReactNative, NSObject)
 
 RCT_EXTERN_METHOD(setLoggingEnabled:(NSString *)token loggingEnabled:(BOOL)loggingEnabled resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
 
+RCT_EXTERN_METHOD(setFlushOnBackground:(NSString *)token flushOnBackground:(BOOL)flushOnBackground resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
+
 RCT_EXTERN_METHOD(setUseIpAddressForGeolocation:(NSString *)token useIpAddressForGeolocation:(BOOL)useIpAddressForGeolocation resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
 
 // MARK: - Opting Users Out of Tracking

ios/MixpanelReactNative.swift

@@ -44,6 +44,16 @@ open class MixpanelReactNative: NSObject {
         resolve(nil)
     }
 
+    @objc
+    func setFlushOnBackground(_ token: String,
+                    flushOnBackground: Bool,
+                    resolver resolve: RCTPromiseResolveBlock,
+                    rejecter reject: RCTPromiseRejectBlock) -> Void {
+        let instance = MixpanelReactNative.getMixpanelInstance(token)
+        instance?.flushOnBackground = flushOnBackground
+        resolve(nil)
+    }
+
     @objc
     func setUseIpAddressForGeolocation(_ token: String,
                     useIpAddressForGeolocation: Bool,