React Native (Bridge) (21.11)


This document will guide you through the process of Countly SDK installation and it applies to version 21.11.0
Countly is an open source SDK, you can take a look at our SDK code in the Github repo

Older documentation

To access the documentation for version 20.11 and older, click here.

This is the Countly SDK for React Native applications. It features bridging, meaning it includes all the functionalities that Android and iOS SDKs provide rather than having those functionalities as React Native code.

Supported Platforms: Countly SDK supports iOS and Android.

You can take a look at our sample application in the Github repo. It should show how most of the functionalities can be used.

Adding the SDK to the project

In order to use the React Native SDK, please use the following commands to create a new React Native application.

npm install -g react-native-cli     # Install React Native
react-native init AwesomeProject    # Create a new project

cd AwesomeProject                   # Go to that directory
react-native run-android # OR       # Run the android project
react-native run-ios                # Run the iOS project

# New terminal
adb reverse tcp:8081 tcp:8081       # Link Android port
npm start                           # Run the build server

Run the following snippet in the root directory of your React Native project to install the npm dependencies and link native libraries. Note: use the latest SDK version currently available, not specifically the one shown in the sample below.

# Include the Countly Class in the file that you want to use.
npm install --save
# OR 
npm install --save countly-sdk-react-native-bridge@20.11.0

# Linking the library to your app

# react-native < 0.60. For both Android and iOS
react-native link countly-sdk-react-native-bridge
cd node_modules/countly-sdk-react-native-bridge/ios/
pod install 
cd ../../../

# react-native >= 0.60 for iOS (Android will autolink)
cd ios 
pod install
cd ..

SDK Integration

Minimal setup

We will need to call two methods (init and start) in order to set up our SDK. These methods should only be called once during the app's lifecycle and should be done as early as possible. Your main app component's componentDidMountmethod may be a good place.

import Countly from 'countly-sdk-react-native-bridge';

if(!await Countly.isInitialized()) {
  await Countly.init("", "YOUR_APP_KEY"); // Initialize the countly SDK.
  Countly.start(); // start session tracking

For more information on how to acquire your application key (appKey) and server URL, check here

After init and start have been called once, you may use the commands in the rest of this document to send additional data and metrics to your server.

Enable logging

The first thing you should do while integrating our SDK is enable logging. If logging is enabled, then our SDK will print out debug messages about its internal state and encountered problems.

Call setLoggingEnabled on the config class to enable logging:

Countly.setLoggingEnabled(true); // Enable countly internal debugging logs

Device ID

You may provide your own custom device ID when initializing the SDK using the method below.


SDK data storage

For iOS: SDK data is stored in Application Support Directory in file named "Countly.dat" For Android: SDK data is stored in SharedPreferences. A SharedPreferences object points to a file containing key-value pairs and provides simple methods to read and write them.

Crash reporting

The Countly SDK has the ability to collect crash reports, which you may examine and resolve later on the server.

Automatic crash handling

With this feature, the Countly SDK will generate a crash report if your application crashes due to an exception and send it to the Countly server for further inspection.

If a crash report cannot be delivered to the server (e.g. no internet connection, unavailable server, etc.), then the SDK stores the crash report locally in order to try again at a later time.

You will need to call the following method before calling init in order to activate automatic crash reporting.

// Using Countly crash reports

Automatic crash report segmentation

You may add a key/value segment to crash reports. For example, you could set which specific library or framework version you used in your app. You may then figure out if there is any correlation between the specific library or another segment and the crash reports.

Use the following function for this purpose:

var segment = {"Key": "Value"};

Handled exceptions

You might catch an exception or similar error during your app’s runtime.

You may also log these handled exceptions to monitor how and when they are happening with the following command:

Countly.logException(stack, nonfatal, customSegments);

The method logExceptiontakes a string for the stack trace, a boolean flag indicating if the crash is considered fatal or not, and a segments dictionary to add additional data to your crash report.

Below are some examples that how to log handled/nonfatal and unhandled/fatal exceptions manually.

1. Manually report handled exception

Countly.logException("STACK_TRACE_STRING", true);

2. Manually report handled exception with segmentation

Countly.logException("STACK_TRACE_STRING", true, {"_facebook_version": "0.0.1"});

3. Manually report fatal exception

Countly.logException("STACK_TRACE_STRING", false);

4. Manually report fatal exception with segmentation

Countly.logException("STACK_TRACE_STRING", false, {"_facebook_version": "0.0.1"});

Crash breadcrumbs

Throughout your app you can leave crash breadcrumbs which would describe previous steps that were taken in your app before the crash. After a crash happens, they will be sent together with the crash report.

Following the command adds crash breadcrumb:

Countly.addCrashLog(String record) 

Native C++ Crash Reporting

If you have C++ libraries in your React Native Android app, the React Native Bridge SDK allows you to record possible crashes in your Countly server by integrating the sdk-nativedeveloped within our Android SDK. Find more information here.

As this feature is optional, you will need to do some changes in your react native android project files in order to make it available.

Go to YOUR_REACT_NATIVE_PROJECT_PATH/android/app/build.gradleand add the package dependency (please change the LATEST_VERSION below by checking our Maven page, currently 20.11.6):

dependencies {
    implementation ''    

Then call Countly.initNative() method as early as possible in your react native android project to be able to catch setup time crashes, it should be preferably in the "onCreate" callback of the Application class.

You may find at this path:


// import this in your Application class

// call this function in "onCreate" callback of Application class

getApplicationContext() is needed to determine a storage place for minidump files.

Sending crash dump files to the server will be taken care of by the SDK during the next app initialization. We also provide a Gradle plugin that automatically uploads symbol files to your server (these are needed for the symbolication of crash dumps). Integrate it into your React Native project as explained in the relevant Android documentation page.

This is what the debug logs will look like if you use this feature:

$ adb logcat -s Countly:V countly_breakpad_cpp:V

# when Countly.initNative() is called 

D/countly_breakpad_cpp(123): breakpad initialize succeeded. dump files will be saved at /Countly/CrashDumps

# when a crash occurs (you may trigger one by Countly.testCrash())

D/countly_breakpad_cpp(123): DumpCallback started
D/countly_breakpad_cpp(123): DumpCallback ==> succeeded path=/Countly/CrashDumps/30f6d9b8-b3b2-1553-2efe0ba2-36588990.dmp

# when app is run again after the crash 

D/Countly (124): Initializing...
D/Countly (124): Checking for native crash dumps
D/Countly (124): Native crash folder exists, checking for dumps
D/Countly (124): Crash dump folder contains [1] files
D/Countly (124): Recording native crash dump: [30f6d9b8-b3b2-1553-2efe0ba2-36588990.dmp]


An Event is any type of action that you can send to a Countly instance, e.g. purchases, changed settings, view enabled, and so on. This way it's possible to get much more information from your application compared to what is sent from the SDK to the Countly instance by default.

Here are the detail about properties which we can use with event:

  • key identifies the event
  • count is the number of times this event occurred
  • sum is an overall numerical data set tied to an event. For example, total amount of in-app purchase event.
  • duration is used to record and track the duration of events.
  • segmentation is a key-value pairs, we can use segmentation to track additional information.

Data passed should be in UTF-8

All data passed to the Countly server via the SDK or API should be in UTF-8.

Recording events

We will be recording a purchase event below. Here is a quick summary of the information with which each usage will provide us:

  • Usage 1: how many times the purchase event occurred.
  • Usage 2: how many times the purchase event occurred + the total amount of those purchases.
  • Usage 3: how many times the purchase event occurred + from which countries and application versions those purchases were made.
  • Usage 4: how many times the purchase event occurred + the total amount, both of which are also available, segmented into countries and application versions.

1. Event key and count

var event = {"eventName":"Purchase","eventCount":1};

2. Event key, count, and sum

var event = {"eventName":"Purchase","eventCount":1,"eventSum":"0.99"};

3. Event key and count with segmentation(s)

var event = {"eventName":"purchase","eventCount":1}; 
event.segments = {"Country" : "Germany", "app_version" : "1.0"}; 

4. Event key, count, and sum with segmentation(s)

var event = {"eventName":"purchase","eventCount":1};
event.segments = {"Country" : "Germany", "app_version" : "1.0","eventSum":"0.99"};

Those are only a few examples of what you can do with events. You may extend those examples and use Country, app_version, game_level, time_of_day, and any other segmentation that will provide you with valuable insights.

Timed events

It's possible to create timed events by defining a start and a stop moment.

String eventName = "Event Name";

//start some event
//wait some time

//end the event 

You may also provide additional information when ending an event. However, in that case, you have to provide the segmentation, count, and sum. The default values for those are "null", 1 and 0.

String eventName = "Event Name";

//start some event

var event = { "eventName": eventName, "eventCount": 1, "eventSum": "0.99" };
event.segments = { "Country": "Germany", "Age": "28" };

//end the event while also providing segmentation information, count and sum

You may cancel the started timed event in case it is not relevant anymore:

String eventName = "Event name";

//start some event
//wait some time

//cancel the event 

View tracking

You may track custom views with the following code snippet:

Countly.recordView("View Name")

While manually tracking views, you may add your custom segmentation to them like this:

var viewSegmentation = { "Country": "Germany", "Age": "28" };
Countly.recordView("View Name", viewSegmentation);

To review the resulting data, open the dashboard and go to Analytics > Views. For more information on how to use view tracking data to its fullest potential, click here.


Device ID management

When the SDK is initialized the first time and no custom device ID is provided, a random one will be generated. For most use cases that is enough as it provides a random identity to one of your apps users.

For iOS: the device ID generated by the SDK is the Identifier For Vendor (IDFV). For Android: the device ID generated by the SDK is the OpenUDID or Google Advertising ID.

To solve other potential use cases, we provide 3 ways to handle your device id:

  • Changing device ID with merge
  • Changing device ID without merge
  • Using a temporary ID

Changing device ID with and without merge

You may configure or change the device ID anytime using the method below.

Countly.changeDeviceId(DEVICE_ID, ON_SERVER);

You may either allow the device to be counted as a new device or merge existing data on the server. If onServer is set to true, the old device ID on the server will be replaced with the new one, and data associated with the old device ID will be merged automatically. Otherwise, if onServer is set to false, the device will be counted as a new device on the server.

Temporary Device ID

You may use a temporary device ID mode for keeping all requests on hold until the real device ID is set later.

To enable this when initializing the SDK, use the method below.

Countly.init(SERVER_URL, APP_KEY, "TemporaryDeviceID")

To enable a temporary device ID after initialization, use the method below.

Countly.changeDeviceId("TemporaryDeviceID", ON_SERVER);

Note: When passing the TemporaryDeviceID for the deviceID parameter, the argument for the onServerparameter does not matter.

As long as the device ID value is TemporaryDeviceID, the SDK will be in temporary device ID mode and all requests will be on hold, but they will be persistently stored.

When in temporary device ID mode, method calls for presenting feedback widgets and updating remote config will be ignored.

Later, when the real device ID is set using the Countly.changeDeviceId(DEVICE_ID, ON_SERVER); method, all requests which have been kept on hold until that point will start with the real device ID.

Retrieving the device id

You may want to see what device id Countly is assigning for the specific device. For that, you may use the following calls.

String usedId = Countly().getCurrentDeviceId();

Push Notifications

Please first check our Push Notifications documentation to see how you can use this feature. Since Android and iOS handles notifications differently (from how you can send them externally to how they are handled in native code), we need to provide different instructions for these two platforms.

General Setup

First, when setting up Push for the React Native (Bridge) SDK, select the push token mode. This allows you to choose either test or production modes. Note that the push token mode should be set before initialization. Use the method below.

// Important: call this method before init method
Countly.pushTokenType(Countly.messagingMode.DEVELOPMENT, "Channel Name", "Channel Description");
// Countly.messagingMode.DEVELOPMENT
// Countly.messagingMode.PRODUCTION
// Countly.messagingMode.ADHOC

When you are ready to initialize Countly Push, call Countly.askForNotificationPermission() after init, using the method below.

// CUSTOM_SOUND_PATH is an optional parameter and currently only support Android.
Countly.askForNotificationPermission("CUSTOM_SOUND_PATH"); // This method will ask for permission, // and send push token to countly server.

With an option parameter of custom sound path for push notifications.
We will use this custom sound path to create a soundUri and set the sound of notification channel.

We recommend to add the custom sound file in your Android project res/raw folder. Always create a "raw" folder by right clicking on Resources (res) folder and select New -> Android Resource Directory.
Your custom sound path will be like this after adding it in res/raw folder:

For more information about custom push notification sounds in Android check this link:

Supported Platforms

Currently custom sound feature is only available for Android

If you would like to use a custom sound in your push notifications, they must be present on the device. They may not be stored somewhere on the internet and then linked from there.

Android Setup

Step 1: For FCM credentials setup please follow the instruction from this URL

Step 2: Make sure you have google-services.json from

Step 3: Make sure the app package name and the google-services.json package_name matches.

Step 4: Place the google-services.json file inside android/app

Step 5: Use google services latest version from this link

Step 6: Add the following line in the file android/build.gradle

buildscript {
    dependencies {
        classpath ''

Step 7: Add the following line in file android/app/build.gradle

// Add this at the bottom of the file
apply plugin: ''

Note: You need to do some additional steps to handle multiple messaging services if you are using other plugins for push notifications, please follow the instructions from this URL:
Handling multiple FCM services

iOS Setup

For iOS push notification please follow the instruction from this URL

For React Native you can find CountlyNotificationService.h/m file under Pods/Development Pods/CountlyReactNative/CountlyNotificationService.h/m

Pro Tips to find the files from deep hierarchy:

  • You can filter the files in the navigator using a shortcut ⌥⌘J (Option-Command-J), in the filter box type "CountlyNotificationService" and it will show the related files only.
  • You can find the file using the shortcut ⇧⌘O (Shift-Command-O) and then navigate to that file using the shortcut ⇧⌘J (Shift-Command-J)

You can drag and drop both .h and .m files from Pod to Compile Sources.


Handling push callbacks

To register a Push Notification callback after initialising the SDK, use the method below.


In order to listen to notification receive and click events, Place below code in AppDelegate.m

Add header files

#import "CountlyReactNative.h"
#import <UserNotifications/UserNotifications.h>

Before @end add these method

// Required for the notification event. You must call the completion handler after handling the remote notification.
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler
  [CountlyReactNative onNotification: userInfo];

// When app is killed.
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)(void))completionHandler{
  [CountlyReactNative onNotificationResponse: response];

// When app is running.
- (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler{
  [CountlyReactNative onNotification: notification.request.content.userInfo];

Data Structure Received in Push Callbacks

Here is the example of how data will receive in push callbacks:Screenshot_2022-06-24_at_7.04.23_PM.png

Data Received for Android platform:

"": "TR",
"c.e.dt": "mobile",
"Key": "value",
"c.i": "62b59b979f05a1f5e5592036",
"c.l": "https:\/\/\/",
"c.m": "https:\/\/\/images\/logos\/countly-logo-mark.png?v2",
"": "notify_icon",
"badge": "1",
"sound": "custom",
"title": "title",
"message": "Message"

Data Received for iOS platform:

"c": {
"i": "62b5b945cabedb0870e9f217",
"l": "https:\/\/\/",
"e": {
"dt": "mobile",
"cc": "TR"
"a": "https:\/\/\/images\/logos\/countly-logo-mark.png"
"aps": {
"mutable-content": 1,
"alert": {
"title": "title",
"subtitle": "subtitle",
"body": "Message"
"badge": 1,
"sound": "custom"
"Key": "value"

User Location

Countly allows you to send geolocation-based push notifications to your users. By default, the Countly Server uses the GeoIP database to deduce a user's location.

Set User Location

If your app has a different way of detecting location, you may send this information to the Countly Server by using the setLocationInit orsetLocation methods.

We recommend using the setLocationInit method before initialization to sent location. This includes:

  • countryCode a string in ISO 3166-1 alpha-2 format country code
  • city a string specifying city name
  • location a string comma-separated latitude and longitude
  • IP a string specifying an IP address in IPv4 or IPv6 formats
// Example for setLocationInit
var countryCode = "us";
var city = "Houston";
var latitude = "29.634933";
var longitude = "-95.220255";
var ipAddress = "";

Countly.setLocationInit(countryCode, city, latitude + "," + longitude, ipAddress);

Geolocation recording methods may also be called at any time after the Countly SDK has started. To do so, use the setLocation method as shown below.

// Example for setLocation
var countryCode = "us";
var city = "Houston";
var latitude = "29.634933";
var longitude = "-95.220255";
var ipAddress = "";

Countly.setLocation(countryCode, city, latitude + "," + longitude, ipAddress);

Disable Location

To erase any cached location data from the device and stop further location tracking, use the following method. Note that if after disabling location, the setLocationis called with any non-null value, tracking will resume.

//disable location tracking

Remote Config

Remote config allows you to modify how your app functions or looks by requesting key-value pairs from your Countly server. The returned values may be modified based on the user profile. For more details, please see the Remote Config documentation.

Manual Remote Config download

There are three ways for manually requesting a remote config update:

  • Manually updating everything
  • Manually updating specific keys
  • Manually updating everything except specific keys.

Each of these requests also has a callback. If the callback returns a non-null value, the request will encounter an error and fail.

The remoteConfigUpdate replaces all stored values with the ones from the server (all locally stored values are deleted and replaced with new ones). The advantage is that you can make the request whenever it is desirable for you. It has a callback to let you know when it has finished.


Or you might only want to update specific key values. To do so, you will need to call updateRemoteConfigForKeysOnly with the list of keys you would like to be updated. That list is an array with the string values of those keys. It has a callback to let you know when the request has finished.

Countly.updateRemoteConfigForKeysOnly(["aa", "bb"],function(data){

Or you might want to update all the values except a few defined keys. To do so, call updateRemoteConfigExceptKeys. The key list is an array with string values of the keys. It has a callback to let you know when the request has finished.

Countly.updateRemoteConfigExceptKeys(["aa", "bb"],function(data){

When making requests with an "inclusion" or "exclusion" array, if those arrays are empty or null, they will function the same as a simple manual request and will update all the values. This means it will also erase all keys not returned by the server.

Getting Remote Config values

To request a stored value, call getRemoteConfigValueForKey or getRemoteConfigValueForKeyP with the specified key.

Countly.getRemoteConfigValueForKey("KeyName", function(data){

var data = await Countly.getRemoteConfigValueForKeyP("KeyName");

Clearing Stored Remote Config values

At some point, you might like to erase all the values downloaded from the server. You will need to call one function to do so.


User feedback

There are a different ways of receiving feedback from your users: the Star-rating dialog, the Ratings widget, and the Surveys widgets (Surveys and NPS®).

The Star-rating dialog allows users to give feedback as a rating from 1 to 5. The Ratings widget allows users to rate using the same 1 to 5 emoji-based rating system as well as leave a text comment. The Surveys widgets (Surveys and NPS®) allow for even more targeted feedback from users.

Star rating dialog

The Star-rating integration provides a dialog for getting user feedback about an application. It contains a title, a simple message explaining its purpose, a 1 through 5-star meter for getting users rating, and a dismiss button in case the user does not want to give a rating.

This star rating has nothing to do with Google Play Store ratings and reviews. It is simply for getting brief feedback from your users to be displayed on the Countly dashboard. If the user dismisses the star-rating dialog without giving a rating, the event will not be recorded.


The star-rating dialog's title, message, and dismiss button text may be customized either through the init function or the SetStarRatingDialogTexts function.

Countly.SetStarRatingDialogTexts("Custom title", "Custom message", "Custom dismiss button text");

Rating widget

The rating widget displays a server-configured widget to your user devices.


All the text fields in the example above can be configured and replaced with a custom string of your choice.

In addition to a 1 through 5 rating, it is possible for users to leave a text comment and an email, should the user like to be contacted by the app developer.

Showing the rating widget in a single call involves a two-set process: before it is shown, the SDK tries to contact the server to get more information about the dialog. Therefore, a network connection to it is needed.

To display the widget after initializing the SDK, you will first need to get the widget ID from your server, as shown below.


Then, call the function to show the widget popup using the widget ID below.

Countly.presentRatingWidgetWithID("WidgetId", "Button Text", function(error){
if (error != null) {

Feedback widget

It is possible to display 2 kinds of Surveys widgets: NPS and Surveys. Both widgets are shown as webviews and they both use the same code methods.

Before any Surveys widget can be shown, you need to create them in your Countly Dashboard.

When the widgets are created, you need to use 2 calls in your SDK: one to get all available widgets for a user and another to display a chosen widget.

To get your available widget list, use the call below.

Countly.getAvailableFeedbackWidgets().then((retrivedWidgets) => {
},(err) => {

From the callback, get the list of all available widgets that apply to the current device ID.

The objects in the returned list look like this:


To determine what kind of widget that is, check the "type" value. The potential values are survey and nps.

Then use the widget type and description (which is the same as provided in the Dashboard) to decide which widget to show.

After you have decided which widget you want to display, call the function below.

Countly.presentFeedbackWidget("WIDGET_TYPE", "WIDGET_ID", "CLOSE_BUTTON_TEXT");

User Profiles

You can provide Countly any details you may have about your user or visitor. This will allow you to track each specific user on the "User Profiles" tab, which is available in Countly Enterprise Edition. For more details, please review the User Profiles documentation.

In order to set a user profile, use the code snippet below. After you send a user’s data, it can be found in your Dashboard under Users > User Profiles.

// Example for setting user data
var options = {}; = "Nicola Tesla";
options.username = "nicola"; = "info@nicola.tesla";
options.organization = "Trust Electric Ltd"; = "+90 822 140 2546";
options.picture = "";
options.picturePath = "";
options.gender = "M";
options.byear = 1919;

Countly also supports custom user properties that you can attach for each user. In order to set or modify a user's data (e.g. increment, multiply, etc.), use the code snippet below.

// examples for custom user properties
Countly.userData.setProperty("keyName", "keyValue"); //set custom property
Countly.userData.setOnce("keyName", 200); //set custom property only if property does not exist
Countly.userData.increment("keyName"); //increment value in key by one
Countly.userData.incrementBy("keyName", 10); //increment value in key by provided value
Countly.userData.multiply("keyName", 20); //multiply value in key by provided value
Countly.userData.saveMax("keyName", 100); //save max value between current and provided
Countly.userData.saveMin("keyName", 50); //save min value between current and provided
Countly.userData.setOnce("setOnce", 200);//insert value to array of unique values
Countly.userData.pushUniqueValue("type", "morning");//insert value to array of unique values
Countly.userData.pushValue("type", "morning");//insert value to array which can have duplicates
Countly.userData.pullValue("type", "morning");//remove value from array

Application Performance Monitoring

The Performance Monitoring feature allows you to analyze your application's performance on various aspects. For more details, please review the Performance Monitoring documentation.

Here is how you can utilize the Performance Monitoring feature in your apps:

First, you need to enable the Performance Monitoring feature:

// Enable APM features.

With this, the Countly SDK will start measuring some performance traces automatically, including app foreground time, app background time. Additionally, custom traces and network traces can be manually recorded.

App Start Time

For the app start time to be recorded, you need to call the appLoadingFinished method. Make sure this method is called after init.

// Example of appLoadingFinished
await Countly.init("", "YOUR_APP_KEY");

This calculates and records the app launch time for performance monitoring. It should be called when the app is loaded and it successfully displayed its first user-facing view. E.g. componentDidMount: method or wherever is suitable for the app's flow. The time passed since the app has started to launch will be automatically calculated and recorded for performance monitoring. Note that the app launch time can be recorded only once per app launch. So, the second and following calls to this method will be ignored.

Custom trace

You may also measure any operation you want and record it using custom traces. First, you need to start a trace by using the startTrace(traceKey) method:


Then you may end it using the endTrace(traceKey, customMetric)method, optionally passing any metrics as key-value pairs:

String traceKey = "Trace Key";
Map<String, int> customMetric = {
  "ABC": 1233,
  "C44C": 1337
Countly.endTrace(traceKey, customMetric);

The duration of the custom trace will be automatically calculated upon ending.

Trace names should be non-zero length valid strings. Trying to start a custom trace with the already started name will have no effect. Trying to end a custom trace with already ended (or not yet started) name will have no effect.

You may also cancel any custom trace you started using the cancelTrace(traceKey)method:


Additionally, if you need you may cancel all custom traces you started, using the clearAllTraces()method:


Network trace

You may record manual network traces using the recordNetworkTrace(networkTraceKey, responseCode, requestPayloadSize, responsePayloadSize, startTime, endTime) method.

A network trace is a collection of measured information about a network request. When a network request is completed, a network trace can be recorded manually to be analyzed via Performance Monitoring later using the following parameters:

- networkTraceKey: A non-zero length valid string - responseCode: HTTP status code of the received response - requestPayloadSize: Size of the request's payload in bytes - responsePayloadSize: Size of the received response's payload in bytes - startTime: UNIX timestamp in milliseconds for the starting time of the request - endTime: UNIX timestamp in milliseconds for the ending time of the request

Countly.recordNetworkTrace(networkTraceKey, responseCode, requestPayloadSize, responsePayloadSize, startTime, endTime);

User consent

Being compliant with GDPR and other data privacy regulations, Countly provides ways to toggle different Countly tracking features on or off depending on a user's given consent. For more details, please review the Compliance Hub plugin documentation.

Currently, available features with consent control are as follows:

  • sessions - tracking when, how often, and how long users use your app
  • events - allows sending events to the server
  • views - allows tracking which views user visits
  • location - allows sending location information
  • crashes - allows tracking crashes, exceptions, and errors
  • attribution - allows tracking from which campaign did the user come
  • users - allows collecting and providing user information, including custom properties
  • push - allows push notifications
  • star-rating - allows sending the results from Rating Feedback widgets
  • feedback - allows showing the results from Survey and NPS® Feedback widgets
  • apm - allows application performance monitoring
  • remote-config - allows downloading remote config values from your server

Since the React Native Bridge SDK employs our iOS and Android SDKs, you may also be interested in reviewing their relevant documentation on this topic (iOS Consents and Android Consents).

Next we will go over the methods that are available in this SDK.

Method Parameters / Examples Description
setRequiresConsent boolean

The requirement for checking consent is disabled by default. To enable it, you will have to call setRequiresConsentwith truebefore initializing Countly. You may also pass a consent flag as true or false when you call init.

giveConsentInit string array of strings

To add consent for a single feature (string parameter) or a subset of features (array of strings parameter). Use this method for giving consent before initializing.

giveConsent string array of strings

To add consent for a single feature (string parameter) or a subset of features (array of strings parameter). Use this method for giving consent after initializing.

removeConsent string array of strings

To remove consent for a single feature (string parameter) or a subset of features (array of strings parameter).

giveAllConsent none To give consent for all available features.
removeAllConsent none To remove consent for all available features.
// Usage examples


// for a single feature

// for a subset of features
Countly.giveConsentInit(["events", "views", "star-rating", "crashes"]);
Countly.giveConsent(["events", "views", "star-rating", "crashes"]);
Countly.removeConsent(["events", "views", "star-rating", "crashes"]);

// for all available features

The string values corresponding to the features that will be used in the giveConsent or removeConsent methods may be found here. In addition, please review our platform SDK documents if the feature is applicable or not for that platform.

Security and privacy

Parameter tampering protection

You can set optional salt to be used for calculating checksum of request data, which will be sent with each request using &checksum field. You need to set exactly the same salt on the Countly server. If salt on Countly server is set, all requests would be checked for the validity of &checksum field before being processed.

// sending data with salt

Make sure not to use salt on the Countly server and not on the SDK side, otherwise, Countly won't accept any incoming requests.

Pinned Certificate (Call this method before initialization)


openssl s_client -connect -showcerts

Run the above command and copy the content inside the begin certificate and the end certificate.

Example files: Android and iOS. Note that Android needs the certificate string, while iOS needs the entire .cer file.


cd AwesomeProject
mkdir -p ./android/app/src/main/assets/
cp ./ ./android/app/src/main/assets/


open ./ios/AwesomeProject.xcworkspace
Right click on AwesomeProject and select `New Group` (ScreenShot 1)
Name it `Resources`
Drag and Drop file under that folder (ScreenShot 2)
Make sure copy bundle resources has your certificate (Screenshot 4).





Note that is the name of the file. Replace this file with the one you have.

Other features

Custom Metrics

Minimum Countly SDK Version

This feature is only supported by the minimum SDK version 20.11.7.

For overriding default metrics or adding extra ones that are sent with begin_session requests, you can use pass 'customMetric' Object to the function Countly.setCustomMetrics(customMetric), 'customMetric' should be an Object with keys and values that are both Strings only. Note that the custom metrics should be set before initialization.

var customMetric = {"key": "value"};

For overriding default metrics, keys should be one of the below String value's:


Example to override 'Carrier' and 'App Version'

var customMetric = {"_carrier": "custom carrier", "_app_version": "2.1"};

Attribution analytics & install campaigns

Countly Attribution Analytics allows you to measure the performance of your marketing campaign by attributing installs from specific campaigns. This feature is available for the Enterprise Edition.

For version 20.11.4 and greater we highly recommend allowing Countly to listen to the INSTALL_REFERRER intent in order to receive more precise attribution on Android, something you may do by adding the following XML code to your AndroidManifest.xml file inside the application tag.

<receiver android:name="" android:exported="true">
		<action android:name="" />

For more information about how to set up your campaigns, please review this documentation.

Call the method below before initialization.

// Enable to measure your marketing campaign performance by attributing installs from specific campaigns.

For iOS 14+ use the recordAttributionID("IDFA") function instead of Countly.enableAttribution()

You can use Countly.recordAttributionID function to specify IDFA for campaign attribution


For iOS 14+ due to Apple changes regarding Application Tracking, you need to ask the user for permission to track the Application.

For IDFA you can use this Plugin, which also supports iOS 14+ changes for Application tracking permission:

Here is how to use this plugin with the Countly attribution feature:

npm install --save

cd ./ios
pod install

Add "Privacy - Tracking Usage Description" in your ios info.plist file.

#Example Code for Countly attribution feature to support iOS 14+.

import RNAdvertisingId from 'react-native-advertising-id';

if (Platform.OS.match("ios")) {
.then(response => {
.catch(error => console.error(error));
else {
Countly.enableAttribution(); // Enable to measure your marketing campaign performance by attributing installs from specific campaigns.


If the data sent to the server is short enough, the SDK will use HTTP GET requests. In the event you would like an override so that HTTP POST may be used in all cases, call the setHttpPostForced function after you have called init. You may use the same function later in the app’s life cycle to disable the override. This function has to be called every time the app starts, using the method below.

// enabling the override
// disabling the override

Checking if init has been called

In the event you would like to check if init has been called, use the function below.

Countly.isInitialized().then(result => console.log(result)); // true or false

Checking if onStart has been called

For some applications, there might be a use case where the developer would like to check if the Countly SDK onStart function has been called. To do so, use the call below.

Countly.hasBeenCalledOnStart().then(result => console.log(result)); // true or false 

Interacting with the internal request queue

When recording events or activities, the requests don't always get sent immediately. Events get grouped together. All the requests contain the same app key which is provided in the init function.

There are two ways to interact with the app key in the request queue at the moment.

1. You can replace all requests with a different app key with the current app key:

//Replaces all requests with a different app key with the current app key.

In the request queue, if there are any requests whose app key is different than the current app key, these requests app key will be replaced with the current app key. 2. You can remove all requests with a different app key in the request queue:

//Removes all requests with a different app key in request queue.

In the request queue, if there are any requests whose app key is different than the current app key, these requests will be removed from the request queue.

Setting an event queue threshold

Events get grouped together and are sent either every minute or after the unsent event count reaches a threshold. By default it is 10. If you would like to change this, call:


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