Add dispatch to ensure hits dispatched

Author: cpunion

android/src/main/java/com/idehub/GoogleAnalyticsBridge/GoogleAnalyticsBridge.java

@@ -6,6 +6,7 @@
 import com.facebook.react.bridge.ReadableMap;
 import com.facebook.react.bridge.ReadableArray;
 import com.facebook.react.bridge.ReadableMapKeySetIterator;
+import com.facebook.react.bridge.Promise;
 
 import com.google.android.gms.analytics.GoogleAnalytics;
 import com.google.android.gms.analytics.HitBuilders;
@@ -481,4 +482,11 @@ public void createNewSession(String trackerId, String screenName) {
         tracker.setScreenName(screenName);
         tracker.send(new HitBuilders.ScreenViewBuilder().setNewSession().build());
     }
+
+    @ReactMethod
+    public void dispatch(Promise promise) {
+        GoogleAnalytics analytics = GoogleAnalytics.getInstance(getReactApplicationContext());
+        analytics.dispatchLocalHits();
+        promise.resolve(true);
+    }
 }

ios/RCTGoogleAnalyticsBridge/RCTGoogleAnalyticsBridge/RCTGoogleAnalyticsBridge.m

@@ -377,6 +377,13 @@ - (NSDictionary *)constantsToExport
     [tracker send:[builder build]];
 }
 
+RCT_EXPORT_METHOD(dispatch:(RCTPromiseResolveBlock)resolve
+                  reject:(__unused RCTPromiseRejectBlock)reject) {
+    [[GAI sharedInstance] dispatchWithCompletionHandler:^void(GAIDispatchResult result){
+        resolve(result != kGAIDispatchError ? @YES : @NO);
+    }];
+}
+
 + (BOOL)requiresMainQueueSetup
 {
     return YES;

src/GoogleAnalyticsTracker.js

@@ -248,4 +248,27 @@ export class GoogleAnalyticsTracker {
   createNewSession(screenName) {
     GoogleAnalyticsBridge.createNewSession(this.id, screenName);
   }
+
+  dispatch() {
+    return GoogleAnalyticsBridge.dispatch()
+  }
+
+  dispatchWithTimeout(timeout = -1) {
+    if (timeout < 0) {
+      return this.dispatch()
+    }
+
+    const withTimeout = timeout => (
+      new Promise(resolve => {
+        setTimeout(() => {
+          resolve()
+        }, (timeout > 15000) ? 15000 : timeout)
+      })
+    )
+
+    return Promise.race([
+      GoogleAnalyticsBridge.dispatch(),
+      withTimeout(timeout)
+    ])
+  }
 }