Dynatrace React Native Plugin

The Dynatrace React Native plugin helps auto-instrument your React Native app with Dynatrace OneAgent for Android and iOS and also provides an API to add manual instrumentation.

If you want to start using this plugin and are not a Dynatrace customer yet, head to dynatrace.com and sign up for a free trial. For an intro you can also check out our announcement blog post.

Supported features

• Auto-instrumentation using OneAgent for Android and iOS
  • User actions for application start and native controls
  • Web requests
  • Crashes
• React-native Auto-instrumentation
  • User actions for onPress and onLongPress (Touchables, Buttons, Pickers, RefreshControl, Pressable)
  • User actions for class and functional components (lifecycle events such as render(), didMount() and didUpdate())
  • Reporting React Native errors
• Manual instrumentation
  • Typescript bindings to add manual instrumentation
• New React-Native architecture

Note: With iOS specifically, we noticed that there are some features that are not working the same as when using the current default architecture. You may experience issues with crash reporting being captured and web requests being linked to specific user actions. Per react native, the new architecture is experimental. We will keep an eye on new updates and will continue to improve our support for the new architecture on both platforms.

Requirements

• React v16.8 or newer
• React Native v0.60 or newer
• For Android users:
  • SDK version 21+
  • Gradle version 7.0+ (How to update?)
  • Android Gradle plugin version 7.0+
  • Java 11
• For iOS users: Minimum iOS 12

Agent Versions

This agent versions are configured in this plugin:

• Android Agent: 8.305.1.1005
• iOS Agent: 8.305.3.1016

Quick Setup

1. Install plugin
2. Register Dynatrace transformer
3. Setup configuration
4. Update Babel Configuration
5. Build and run your app

Advanced topics

• Manual OneAgent Startup
• Manual instrumentation
  • Plugin Startup
  • Monitor a Component
  • Create Custom Action
  • Cancel Actions
  • Manual Web Request Tagging
  • Report Values
  • Report Stacktrace
  • Identify User
  • End Session
  • Crash Reporting
  • User Privacy Options
  • Report GPS Position
  • Business event capturing
  • Platform independent reporting
  • Set beacon headers
  • Exclude Individual JSX Elements
• NPX Commands
  • npx instrumentDynatrace
  • npx configDynatrace
• Customizing paths for configuration
• Manual adding iOS Agent to project
• Setup for tvOS
• Configuration structure
  • Manual Startup Counterparts
  • Lifecycle modes
  • Define build stages
  • User Opt In Mode
  • Agent debug logs
• How does Dynatrace determine the user action name?
  • Using dtActionName
• How does Dynatrace automatically report crashes?
• React Automatic Runtime
• Using a second transformer besides the dynatrace transformer
• Upgrading project to Gradle 7
• Maven Central in top-level gradle file
• Configuration of standalone React Native project
• Instrumentation Overhead

Troubleshooting

• Documentation
• Known issues
• Supported and Unsupported libraries
• Report bug / Get support
• Changelog

Quick Setup

Note: If you are upgrading to React Native v0.70 (or newer) or using the @react-native-community/cli 9.x+ version, be aware that our automated script running before every start/run-android/run-ios command is no longer working. When your dynatrace.config.js changed be sure to execute npx instrumentDynatrace beforehand.

1. Install the plugin

1. Install the plugin by calling:
   • React Native v0.60 or newer : npm install @dynatrace/react-native-plugin
   • React Native v0.59.x : react-native install @dynatrace/react-native-plugin.
2. iOS only : If you use pods, you need to go into your ios directory and execute pod install to install the new Dynatrace dependency to your xCode project.

Troubleshooting

• Expo: Make sure you actually have platform folders like android/ and/or ios/ so the plugin can do the configuration correctly. Furthermore you need to trigger the configuration manually as the plugin is only automatically working with the React Native CLI. This means every time the configuration changes you need to call npx instrumentDynatrace.
• Standalone Project: If you are using React Native standalone and embed it in your native project have a look here.
• If for some reason (e.g. seperate native projects) react-native link doesn't work as expected, manually add the iOS agent to your project.

2. Register the Dynatrace transformer

Depending on your React Native version, you will need to use a different way to register the transformer. If you don't know the version, enter react-native --version in your terminal.

The following configuration must be added. If you already have a babel transformer (babelTransformerPath) in place, you need to use the upstreamTransformer property in dynatrace.config.js to use a transformer besides our dynatrace transformer.

In your project's root directory, create or extend metro.config.js so that it contains the following configuration properties transformer.babelTransformerPath and reporter:

For React Native v0.72.1 or newer

const {getDefaultConfig, mergeConfig} = require('@react-native/metro-config');
const defaultConfig = getDefaultConfig(__dirname);

/**
 * Metro configuration
 * https://facebook.github.io/metro/docs/configuration
 *
 * @type {import('metro-config').MetroConfig}
 */
const config = {
  transformer: {
    babelTransformerPath: require.resolve(
      '@dynatrace/react-native-plugin/lib/dynatrace-transformer',
    ),
  },
  reporter: require('@dynatrace/react-native-plugin/lib/dynatrace-reporter'),
};

module.exports = mergeConfig(defaultConfig, config);

For Expo

const {getDefaultConfig} = require('expo/metro-config');
const config = getDefaultConfig(__dirname);

config.transformer.babelTransformerPath = require.resolve(
  '@dynatrace/react-native-plugin/lib/dynatrace-transformer',
);

config.reporter = require('@dynatrace/react-native-plugin/lib/dynatrace-reporter');

module.exports = config;

For React Native v0.59 or newer

module.exports = {
    transformer: {
      babelTransformerPath: require.resolve(
        '@dynatrace/react-native-plugin/lib/dynatrace-transformer'
      )
    },
    reporter: require('@dynatrace/react-native-plugin/lib/dynatrace-reporter'),
};

3. Setup dynatrace.config.js

Note: If you are upgrading from a previous version of this plugin, you'll notice that the file format has changed. Your old configuration is still available in dynatrace.config and you have to copy your values to the new dynatrace.config.js.

Define a mobile app in Dynatrace and open the Mobile app instrumentation settings. In the settings you will see a dynatrace.config.js file which can be downloaded for React Native. Download and copy this file into the root folder of your application. If you are not sure you can always use npx configDynatrace to create a default configuration file.

Note: Define the components that you want to see lifecycle instrumented (example). This is important as you will only see Application startup and Touches out of the box.

Note for Expo: If you are using expo make sure to use the upstreamTransformer property in the dynatrace.config.js file: upstreamTransformer: require.resolve('@expo/metro-config/babel-transformer')

For more details about the configuration, see Advanced topics.

4. Update Babel Configuration

Depending on your version of Metro or Expo (if used), your babel configuration babel.config.js will need to be updated.

The changes have to be done in the following cases:

• metro v0.72.0 or newer: https://github.com/facebook/metro/releases/tag/v0.72.0
• expo v44.0.0 or newer or babel-preset-expo v9.0.0 or newer: https://github.com/expo/expo/blob/main/packages/babel-preset-expo/CHANGELOG.md#900--2021-12-03

The required changes for the versions above can be found here.

5. Build and run your app

1. Only for Expo: If using expo make sure that your project is containing a "android" and/or "ios" folder. This can be done by using npx expo prebuild.

2. Execute npx instrumentDynatrace or react-native instrument-dynatrace in the root of your React Native project. This will configure both Android and iOS projects with the settings from dynatrace.config.js. You can use the same custom arguments as mentioned above.

3. Use react-native run-android or react-native run-ios to rebuild and run your app. Specify custom paths via custom arguments..

4. Attention: Whenever you change your configuration in dynatrace.config.js please use react-native start --reset-cache option. Metro caches all files and a configuration change might lead to a different situation. Not resetting the cache might result in an mixture of old and new configuration.

Advanced topics

Manual OneAgent startup

If you can't do a automated startup through the dynatrace.config.js, you can always perform a manual startup and decide values such as beaconUrl and applicationId at runtime.

Note: An automated startup usually provides you with a lifecycle application start-up event. A manual startup on the other hand occurs later, thereby causing you to miss everything, including this application startup event, until the startup occurs.

A manual startup requires the following two steps:

1. Deactivate the automated startup in dynatrace.config.js:

module.exports = {
    react: {
        autoStart: false,
        ...
    },
    android: {
        config: `
        dynatrace {
            configurations {
                defaultConfig {
                    autoStart.enabled false
                }
            }
        }
        `
    },
    ios: {
        config: `
        <key>DTXAutoStart</key>
        <false/>
        `
    }
}

2. Make the start-up call with at least beaconUrl and applicationId:

Example of a startup call:

import { Dynatrace, ConfigurationBuilder } from '@dynatrace/react-native-plugin';

await Dynatrace.start(new ConfigurationBuilder("beaconUrl", "applicationId").buildConfiguration());

For more details see the section about startup API.

Note: If you don't deactivate the automated startup with the dynatrace.config.js file, the beaconUrl and applicationId values have no impact and are thrown away.

Manual instrumentation

To use the API of the React Native plugin, import the API:

import { Dynatrace } from '@dynatrace/react-native-plugin';

Plugin startup

The manual startup of the plugin is triggered via the start(configuration: IConfiguration) method. If you configured dynatrace.config.js for manual startup then the plugin doesn't send any data when not calling this function. Besides the application id and the beacon URL, there are several optional configuration parameters, which are shown in the table below.

import { Dynatrace, ConfigurationBuilder, LogLevel } from '@dynatrace/react-native-plugin';

const configurationBuilder = new ConfigurationBuilder("beaconUrl", "applicationId");

configurationBuilder.withCrashReporting(true)
  .withErrorHandler(true)
  .withReportFatalErrorAsCrash(true)
  .withLogLevel(LogLevel.Info)
  .withLifecycleUpdate(false)
  .withUserOptIn(false)
  .withActionNamePrivacy(false)
  .withBundleName(undefined);
  
await Dynatrace.start(configurationBuilder.buildConfiguration());

Info: The value used in the function calls for the parameters is also their default value.

| Property name | Type | Default | Description | |-------------------------|--------|-------------|---------------------------------------------------| |beaconUrl |string |undefined |Identifies your environment within Dynatrace. This property is mandatory for manual startup. OneAgent issues an error when the key isn't present.| |applicationId |string |undefined |Identifies your mobile app. This property is mandatory for manual startup. OneAgent issues an error when the key isn't present.| |reportCrash |boolean |true |Reports crashes. | |errorHandler |boolean |true |Enables the error/crash handler. | |reportFatalErrorAsCrash |boolean |true |Reports an unhandled fatal error as a crash or an error. | |logLevel |LogLevel|LogLevel.Info|Allows you to choose between LogLevel.Info and LogLevel.Debug. Debug returns more logs. This is especially important when something is not functioning correctly.| |lifecycleUpdate |boolean |false |Decide if you want to see update cycles on lifecycle actions as well. This is per default false as it creates a lot more actions.| |userOptIn |boolean |false |Activates the privacy mode when set to true. User consent must be queried and set. The privacy settings for data collection and crash reporting can be changed via OneAgent SDK for Mobile as described under Data privacy. The default value is false.| |actionNamePrivacy |boolean |false |Activates a privacy mode especially for Touchables and Buttons. Setting this option to true means that a name for the control will no longer be shown, e.g. "Touch on Button". When setting a dtActionName onto the component this setting will be ignored. |bundleName |string |undefined |Should be used only if you have a multiple bundle setup where you load several .bundle files within your React Native application. Enter the name of your bundle. This should be unique in comparison to your other bundle names. This will ensure that actions coming from different bundles will not interfere with each other.

Attention:

• Keep in mind that configuration within the dynatrace.config.js file is the basis, even for manual startup. When we look at the lifecycleUpdate property: Per default if not used, it is false. If enabled (set to true) in dynatrace.config.js file, this will be also true if manual startup is used. You can still override this behavior by calling ConfigurationBuilder.withLifecycleUpdate(false).
• Please use those parameters only when doing a manual startup. If you want to do an automated startup, please configure the properties via the auto startup configuration. You will find a list which explains all the counterparts for the available options here.

Monitor a Component

A component can be either monitored automatically or manually. The auto instrumentation is handled via the dynatrace.config.js file. If you want to manually instrument a component you can use the API call withMonitoring.

• Example with Functional Component:

import { Dynatrace } from '@dynatrace/react-native-plugin';

export function MyFunctionalComponent(){
  ...
}

Dynatrace.withMonitoring(MyFunctionalComponent, "MyFunctionalComponent");

The String "MyFunctionalComponent" is optional as the name of the component can be retrieved through different properties.

Combining manual and auto instrumentation is not creating a problem as both are executing the same thing. Manual instrumentation would only override the content of auto instrumentation happening through the transformer.

Create custom actions

There are two options to create an action. Either using enterAutoAction (the previous enterAction) or enterManualAction:

• enterAutoAction - Creates an Action which will be automatically handled by the plugin (This is the type of action which is internally used by the plugin when monitoring components and touchables). This means that the plugin decides about the hierachy of this action. If there is no open action, the following action will be a root action. All other actions created by this method, while a root action is open, will be automatically inserted as a child action. Furthermore the plugin will automatically link webrequest (if they are not tagged manually) to the open root action.

import { Dynatrace } from '@dynatrace/react-native-plugin';

const myAction = Dynatrace.enterAutoAction("MyButton tapped");
//Perform the action and whatever else is needed.
myAction.leaveAction();

• enterManualAction - Creates an Action which will NOT be handled by the plugin. This means that you have full control about the hierachy of your actions. This function will create a root action for you, which has the ability to create child actions via enterAction. Be aware, because of the full manual approach the plugin will not link webrequest automatically. Webrequest have to be manually tagged by using the tag provided by the action via getRequestTag.

import { Dynatrace } from '@dynatrace/react-native-plugin';

const myAction = Dynatrace.enterManualAction("MyButton tapped");
//Perform the action and whatever else is needed.
myAction.leaveAction();

To create a custom action named "MyButton tapped", use the following code. The leaveAction closes the action again. To report values for this action before closing, see Report Values.

import { Dynatrace } from '@dynatrace/react-native-plugin';

const myAction = Dynatrace.enterAutoAction("MyButton tapped");
//Perform the action and whatever else is needed.
myAction.leaveAction();

Create custom sub actions

You can create a single custom action as well as sub actions. The MyButton Sub Action is automatically put under the MyButton tapped. As long as MyButton tapped is open, it gathers all the web requests.

import { Dynatrace } from '@dynatrace/react-native-plugin';

const myAction = Dynatrace.enterManualAction("MyButton tapped");
const mySubAction = myAction.enterAction("MyButton Sub Action");
//Perform the action and whatever else is needed.
mySubAction.leaveAction();
myAction.leaveAction();

Cancel actions

Actions can be canceled. That means they will not be sent and discarded fully. This also means that any values and sub actions attached to the action will be removed.

import { Dynatrace } from '@dynatrace/react-native-plugin';

const myAction = Dynatrace.enterAutoAction("MyButton tapped");
// Action will be canceled
myAction.cancel();

// Has no impact as the action is already canceled
myAction.leaveAction();

Manual Web Request Tagging

You can manually tag and time your web requests. With the API shown below, you are able to manually capture the web requests of an http framework/library.

Note: Using this API will force the request to be added to the action that is manually created.

import { Dynatrace, DynatraceWebRequestTiming } from '@dynatrace/react-native-plugin';

let url = 'https://www.dynatrace.com';
// You can also use enterAutoAction if desired
let action = Dynatrace.enterManualAction("Manual Web Request");
let tag = await action.getRequestTag(url);
let timing = new DynatraceWebRequestTiming(url, tag);

try {      
  timing.startWebRequestTiming();
  let axiosResponse = await axios.get(url, {
    headers: {
        timing.getRequestTagHeader(): tag
    }
  });
  timing.stopWebRequestTiming(axiosResponse.status, axiosResponse.data);
} catch (error) {
  timing.stopWebRequestTiming(-1, error);
} finally {
  action.leaveAction();
}

There is also the option to report values for request and response size:

import { Dynatrace, DynatraceWebRequestTiming } from '@dynatrace/react-native-plugin';

let url = 'https://www.dynatrace.com';
// You can also use enterAutoAction if desired
let action = Dynatrace.enterManualAction("Manual Web Request");
let tag = await action.getRequestTag(url);
let timing = new DynatraceWebRequestTiming(url, tag);

try {      
  timing.startWebRequestTiming();
  let axiosResponse = await axios.get(url, {
    headers: {
        timing.getRequestTagHeader(): tag
    }
  });
  timing.stopWebRequestTimingWithSize(axiosResponse.status, axiosResponse.data, 122, 63);
} catch (error) {
  timing.stopWebRequestTiming(-1, error);
} finally {
  action.leaveAction();
}

Report values

For any open action you can report certain values. The following API is available for action:

reportDoubleValue(valueName: string, value: number, platform?: Platform): void
reportError(errorName: string, errorCode: number, platform?: Platform): void
reportEvent(eventName: string, platform?: Platform): void
reportIntValue(valueName: string, value: number, platform?: Platform): void
reportStringValue(valueName: string, value: string, platform?: Platform): void

To report a string value, use the following:

import { Dynatrace } from '@dynatrace/react-native-plugin';

const myAction = Dynatrace.enterAutoAction("MyButton tapped");
myAction.reportStringValue("ValueName", "ImportantValue");
myAction.leaveAction();

If you look at the API calls, you will see the optional parameter platform?: Platform. This parameter offers the possibility to report values only for a specific platform. to know more, see Platform independent reporting.

Report an error stacktrace

To manually report an error stacktrace, use the following API call:

reportErrorStacktrace(errorName: string, errorValue: string, reason: string, stacktrace: string, platform?: Platform): void;

Note: The previous API without errorValue is deprecated and will be removed in the future. Please use the new API with errorValue if possible.

Identify a user

You can identify a user and tag the current session with a name by making the following call:

import { Dynatrace } from '@dynatrace/react-native-plugin';

Dynatrace.identifyUser("User XY");

End the current user session

To end the current user session, use the following API call:

import { Dynatrace } from '@dynatrace/react-native-plugin';

Dynatrace.endSession();

Note: The user tagging will not carry over to the new user session that is started after using this API. If user tagging is desired in the new user session, please ensure that you call the user tagging API.

Manually report a crash

You can manually report a crash via the following API call:

reportCrash(crashName: string, reason: string, stacktrace: string, platform?: Platform): void;
reportCrashWithException(crashName: string, crash: Error, platform?: Platform): void;

Note: If you use this API call to report a crash manually, it will force the session to be completed. Any new actions that are captured afterwards will be added into a new session.

reportCrashWithException will use the crashName as name for the crash. It will only report the crash if there is also a stacktrace available.

User Privacy Options

The privacy API methods allow you to dynamically change the data-collection level based on the individual preferences of your end users. Each end user can select from three data-privacy levels:

export enum DataCollectionLevel {
    Off, Performance, UserBehavior
}

1. Off: Native Agent doesn't capture any monitoring data.
2. Performance: Native Agent captures only anonymous performance data. Monitoring data that can be used to identify individual users, such as user tags and custom values, aren't captured.
3. UserBehavior: Native Agent captures both performance and user data. In this mode, Native Agent recognizes and reports users who re-visit in future sessions.

Crash reporting is enabled by default. The Mobile agent captures all unhandled exceptions/errors and immediately sends the crash report to the server. With this API you can activate or deactivate crash reporting. To change this behaviour via the API, enable/activate userOptIn and set the User Privacy Options.

The API to get and set the current privacy level looks like this:

async getUserPrivacyOptions(platform?: Platform): Promise<UserPrivacyOptions>;
applyUserPrivacyOptions(userPrivacyOptions: UserPrivacyOptions, platform?: Platform): void;

To check the current privacy options that are set:

import { Dynatrace } from '@dynatrace/react-native-plugin';

const privacyOptions = await Dynatrace.getUserPrivacyOptions();

If you want to create a new UserPrivacyOptions object:

import { DataCollectionLevel, UserPrivacyOptions } from '@dynatrace/react-native-plugin';

let privacyConfig = new UserPrivacyOptions(DataCollectionLevel.UserBehavior, true);

To set new values to this object:

privacyConfig.crashReportingOptedIn = false;
privacyConfig.dataCollectionLevel = DataCollectionLevel.Performance;

The properties that are used to set the privacy options can also be used to fetch the options:

let level = privacyConfig.dataCollectionLevel;
let crashReporting = privacyConfig.crashReportingOptedIn;

To apply the values that were set on the object:

import { Dynatrace } from '@dynatrace/react-native-plugin';

Dynatrace.applyUserPrivacyOptions(privacyConfig);

Report GPS Location

You can report latitude and longitude and specify an optional platform.

setGPSLocation(latitude: number, longitude: number, platform?: Platform): void

Platform independent reporting

You probably noticed that each method has an additional optional parameter named platform of type Platform. You can use this to only trigger manual instrumentation for a specific OS. The available values are: Platform.Ios and Platform.Android. Default is that it will work on any platform. Otherwise it is passed only to the relevant OS. For example:

• Passing to iOS only:

import { Dynatrace, Platform } from '@dynatrace/react-native-plugin';

const myAction = Dynatrace.enterAutoAction("MyButton tapped", Platform.Ios);
//Perform the action and whatever else is needed.
myAction.leaveAction("ios"); 

• Passing to Android only:

import { Dynatrace, Platform } from '@dynatrace/react-native-plugin';

const myAction = Dynatrace.enterAutoAction("MyButton tapped", Platform.Android);
//Perform the action and whatever else is needed.
myAction.leaveAction("android"); 

• Passing to both:

import { Dynatrace } from '@dynatrace/react-native-plugin';

const myAction = Dynatrace.enterAutoAction("MyButton tapped");
//Perform the action and whatever else is needed.
myAction.leaveAction(); 

Business event capturing

With sendBizEvent, you can report business events. These events are standalone events, as OneAgent sends them detached from user actions or user sessions.

For more information on business events, see dynatrace documentation.

import { Dynatrace } from '@dynatrace/react-native-plugin';

Dynatrace.sendBizEvent("com.easytravel.funnel.booking-finished", {
  "event.name" : "Confirmed Booking",
  "screen": "booking-confirmation",
  "product": "Danube Anna Hotel",
  "amount": 358.35,
  "currency": "USD",
  "reviewScore": 4.8,
  "arrivalDate": "2022-11-05",
  "departureDate": "2022-11-15",
  "journeyDuration": 10,
  "adultTravelers": 2,
  "childrenTravelers": 0
});

Setting beacon headers

This allows you to put a set of http headers on every agent http request (i.e. Authorization header etc.). It will also triggers the agent to reconnect to the beacon endpoint with the new headers.

Note: To clear the previously set headers, call the method without the headers parameter or with a null value for the headers parameter.

setBeaconHeaders(headers?: Map<string, string> | null, platform?: Platform): void;

Exclude Individual JSX Elements

If you want to instrument a functional component or class component but want to exclude a certain button or element, you can do this via the dtActionIgnore property. Example:

function TouchableHighlightScreen() {
    return (
        <View>
            <TouchableHighlight onPress={onPress}>
                <Text>TouchableHighlight that will be monitored</Text>
            </TouchableHighlight>
            <TouchableHighlight onPress={onPress} dtActionIgnore="true">
                <Text>TouchableHighlight that will be ignored</Text>
            </TouchableHighlight>
        </View>
    );
}

function onPress() {
    Logger.logDebug("TouchableHighlight Pressed!");
}

export default TouchableHighlightScreen;

This example shows two TouchableHighlight, which will fire the onPress() function when pressed. The property dtActionIgnore="true" will prevent the monitoring of one of them. This means that the onPress will still be executed but we will no longer create a user action which is wrapping the button click.

If you want to set this property and use typescript you can use the following workaround:

<TouchableHighlight {...{ "dtActionIgnore": "true" }}><Text>TouchableHighlight that will be ignored</Text></TouchableHighlight>

NPX Commands

The following npx commands are available for the plugin:

• npx instrumentDynatrace - Is triggering the configuration process and will insert the configuration into the Android and iOS application. This is mandatory and should usually happen automatically when doing react-native run-android or react-native run-ios command.
• npx configDynatrace - Is checking the current configuration and is creating a default configuration if there is none.

npx instrumentDynatrace

npx instrumentDynatrace [optional: config=... gradle=... plist=...]

• gradle=C:\MyReactAndroidProject\build.gradle: The location of the root build.gradle file. We will assume that the other gradle file resides in /app/build.gradle. This will add the whole agent dependencies automatically for you and will update the configuration.
• plist=C:\MyReactIOSProject\projectName\info.plist: Tell the script where your info.plist file is. The plist file is used for updating the configuration for the agent.
• config=C:\SpecialFolderForDynatrace\dynatrace.config.js: If you have not got your config file in the root folder of the React Native project but somewhere else.

npx configDynatrace

npx configDynatrace [optional: config=...]

• config=C:\SpecialFolderForDynatrace\dynatrace.config.js: If you have not got your config file in the root folder of the React Native project but somewhere else.

Customizing paths for configuration

Note: This feature works directly on run-android, run-ios or start command only for React Native v0.60.1 or newer until v0.69.x.

MacOS Users: This feature is not working correctly on MacOS. Arguments are not passed between run-ios and starting the webserver. If you still want to use custom arguments you need to start the webserver first with custom arguments and later on executing run-ios, which will then no longer create a webserver as it is already running in background.

Our scripts assumes that the usual React Native project structure is given. The following arguments can be specified for our instrumentation script if the project structure is different.

• gradle=C:\MyReactAndroidProject\build.gradle: The location of the root build.gradle file. We will assume that the other gradle file resides in /app/build.gradle. This will add the whole agent dependencies automatically for you and will update the configuration.
• plist=C:\MyReactIOSProject\projectName\info.plist: Tell the script where your info.plist file is. The plist file is used for updating the configuration for the agent.
• config=C:\SpecialFolderForDynatrace\dynatrace.config.js: If you have not got your config file in the root folder of the React Native project but somewhere else.

Examples:

• React Native v0.60.1 or newer:

npx react-native run-android config=C:\SpecialFolderForDynatrace\dynatrace.config.js --port=2000

• React Native v0.70.0 or newer:

npx instrumentDynatrace config=C:\SpecialFolderForDynatrace\dynatrace.config.js
npx react-native run-android --port=2000

Note: that custom arguments must not be prefixed with -- !

Manually adding iOS OneAgent to a project

Adding the iOS agent manually depends on the availabilty of support for CocoaPods.

With CocoaPods support

Insert the following in your Podfile:

pod 'react-native-dynatrace', :path => '../node_modules/@dynatrace/react-native-plugin'

Without CocoaPods support

1. Open your project in Xcode.
2. Run open node_modules/@dynatrace/react-native-plugin/ios.
3. Drag DynatraceRNBridge.xcodeproj into your Libraries group.
4. Select your main project in the navigator to bring up settings.
5. Under Build Phases expand the Link Binary With Libraries header.
6. Scroll down and click + to add a library.
7. Find and add libRNDynatrace.a under the Workspace group.
8. ⌘+B

Setup for tvOS

Note: Testing has only been done using the react-native-tvos package and currently is the only package supported with our plugin.

To allow our plugin to work with tvOS, please follow the below steps:

Before installing the plugin, add the following to your package.json:

"overrides": {
	"@react-native-picker/picker": {
		"react-native": "<insert-version-here>"
	},
	"@dynatrace/react-native-plugin": {
		"react-native": "<insert-version-here>"
	}
},

If you are using the following "react-native": "npm:[email protected]", use the below snippet:

"overrides": {
	"@react-native-picker/picker": {
		"react-native": "0.69.8-2"
	},
	"@dynatrace/react-native-plugin": {
		"react-native": "0.69.8-2"
	}
},

Once the above is completed, follow the steps from the install plugin section.

When you are ready to build, make sure that you use the plist= parameter when running the npx instrumentDynatrace or npx react-native run-ios commands for the tvOS scheme. Examples:

Using React Native v0.69.x or lower and @react-native-community/cli v8.x or lower:

npx react-native run-ios --simulator "Apple TV" --scheme "ApplicationName-tvOS" plist=/path/to/application/ios/ApplicationName-tvOS/Info.plist

Using React Native v0.70 or higher or @react-native-community/cli v9.x or higher:

// Update the Info.plist with the properties from the dynatrace.config.js file
npx instrumentDynatrace plist=/path/to/application/ios/ApplicationName-tvOS/Info.plist

// Build your tvOS application
npx react-native run-ios --simulator "Apple TV" --scheme "ApplicationName-tvOS"

For more information regarding the differences in the react native versions, please see the Note from the quick setup section.

Structure of the dynatrace.js file

The configuration is structured in the following way:

module.exports = {
    react : {
      // Configuration for React Native instrumentation
    },
    android : {
      // Configuration for Android auto instrumentation
    },
    ios : {
      // Configuration for iOS auto instrumentation
    }
}

Manual Startup Counterparts

Here is a list of all the counterparts for the options that can be used with a manual startup. Below in the counterparts table you will find an example configuration block for both Android and iOS.

| Property Name | Default | Android | iOS | React | |---------------|------|---------|-------------|-------------| |beaconUrl|undefined|autoStart.beaconUrl|DTXBeaconURL| - | |applicationId|undefined|autoStart.applicationId|DTXApplicationId| - | |reportCrash|true|crashReporting|DTXCrashReportingEnabled| - | |errorHandler|true| - | - |errorHandler.enabled| |reportFatalErrorAsCrash|true| - | - |errorHandler.reportFatalErrorAsCrash| |logLevel|LogLevel.Info|debug.agentLogging|DTXLogLevel| debug | |lifecycleUpdate|false| - | - | lifecycle.includeUpdate | |userOptIn|false|userOptIn|DTXUserOptIn| - | |actionNamePrivacy|false|-|-|input.actionNamePrivacy |bundleName|undefined|-|-|bundleName

React block

The react configuration block contains all settings regarding the react instrumentation. The following options are available:

Input

react : {
  input : {
    instrument(filename) => {
      return true;
    },

    actionNamePrivacy: false,
  }
}

This instrument function expects you to return true or false. In this case, all files are instrumented to capture user input.

Lifecycle

react : {
  lifecycle : {
    includeUpdate : false,
    instrument(filename) => {
      // This will only capture inputs in files in the path src/screens/
      return filename.startsWith(require('path').join('src', 'screens'));
    }
  }
}

The instrument function expects you to return true or false. In this case, all files in the src/screens/ folder are instrumented to capture lifecycle changes.

Note: it is important that you input all files here where you wish lifecycle instrumentation. Probably this should contain all your "real" screens. If you return true for this function, all lifecycle events will be reported, which can be a lot in React Native.

Debug mode

react: {
  debug: true
}

This activates the debug mode. You will get more console output during instrumentation and at runtime.

Error Handler

react: {
  errorHandler: {
    enabled: true,
    reportFatalErrorAsCrash: true,
  },
}

The enabled property activates our Error/Crash handler which will insert our handler into your React Native application. This is true per default.

The reportFatalErrorAsCrash property should be set to false if you are wanting to report a fatal/unhandled error as an error and NOT a crash. Setting this value to false will keep the current session open.

Note: if enabled is set to false, the value of reportFatalErrorAsCrash is not be considered/used as our error handler will not be started.

Autostart

react: {
  autoStart: true
}

This activates the AutoStart mode which will insert an auto start call in your React Native application. This is true per default. If you want to use a manual startup call, please have a look into the manual startup section.

Bundle Name

Should be used only if you have a multiple bundle setup where you load several .bundle files within your React Native application. Enter the name of your bundle. This should be unique in comparison to your other bundle names. This will ensure that actions coming from different bundles will not interfere with each other.

react: {
  bundleName: "MyCustomBundle"
}

Android block

The Android block is a wrapper for the Android configuration you find in the WebUI (in the Mobile Application Settings). Copy the content into the following block:

android : {
  config : `CONTENT_OF_ANDROID_CONFIG`
}

The content of the config block is directly copied to the Gradle file. To know more about the possible configuration options, see the DSL documentation of our Gradle plugin.

iOS block

The iOS block is a wrapper for the iOS configuration you find in the WebUI (in the Mobile Application Settings). Copy the content into the following block:

ios : {
  config : `CONTENT_OF_IOS_CONFIG`
}

The content of the config block is directly copied to the plist file. Therefore, you can use every setting that is possible and you find in the official Mobile Agent documentation.

Define build stages in dynatrace.config.js

If you have several stages such as debug, QA, and production, you probably want to seperate them and let them report in different applications. This can be done with two different approaches:

1. Create several dynatrace.config.js (e.g. dynatrace.config.prod.js) and pass those configuration files via arguments in the CLI.
2. Use the configuration options which are available through Gradle and XCode. (Described below)

Note: Option 1 has the drawback that you always need to perform the configuration step before a build as you are basically replacing the configuration all the time. So if you made a debug build and want to do a production build, which is reporting to a different environment or has different options, you need to perform npx instrumentDynatrace (Or if you use RN 0.60+ this happens automatically with react-native run-android or react-native run-ios).

Android

In Android, you can enter all the information in the config file. The following dynatrace {} block must be inserted into the android config variable in your dynatrace.config.js file.

android : {
  config : `
    dynatrace {
      configurations {
        dev {
            variantFilter "Debug" // build type name is upper case because a product flavor is used
            // other variant-specific properties
        }
        demo {
            variantFilter "demo" // the first product flavor name is always lower case
            // other variant-specific properties
        }
        prod {
            variantFilter "Release" // build type name is upper case because a product flavor is used
            // other variant-specific properties
        }
      }
    }
  `
}

This will result in the following:

> Task :app:printVariantAffiliation
Variant 'demoDebug' will use configuration 'dev'
Variant 'demoRelease' will use configuration 'demo'
Variant 'paidDebug' will use configuration 'dev'
Variant 'paidRelease' will use configuration 'prod'

In all these blocks, you can define different application IDs and even use a different environment.

iOS

In iOS, you can define some variables in the dynatrace.config.js file. These variables must then be inserted in a prebuild script. The following properties must be inserted into the iOS config variable in your dynatrace.config.js file.

ios: {
  config: `
  <key>DTXApplicationID</key>
  <string>\${APPLICATION_ID}</string>
  <key>DTXBeaconURL</key>
  <string>Your Beacon URL</string>
  `
}

The variable ${APPLICATION_ID} must then be inserted with a prebuild script. Make sure to use \ in front of the ${...}, because if not JavaScript thinks you are trying to insert a variable into the String. For more information, see https://medium.com/@andersongusmao/xcode-targets-with-multiples-build-configuration-90a575ddc687.

User opt-in mode

Specifies if the user has to opt-in for being monitored. When enabled, you must specify the privacy setting. For more information, see the API section.

Android

android: {
  config: `
    dynatrace {
      configurations {
        defaultConfig {
          autoStart{
            ...
          }
          userOptIn true
        }
      }
    }
  `
}

iOS

ios: {
  config: `
  <key>DTXUserOptIn</key>
  </true>
  `
}

Native OneAgent debug logs

If the instrumentation runs through and your application starts but you see no data, you probably need to dig deeper to find out why the OneAgents aren't sending any data. Opening up a support ticket is a great idea, but gathering logs first is even better.

Android

Add the following configuration snippet to your other configuration in dynatrace.config.js right under the autoStart block (the whole structure is visible, so you know where the config belongs) and run npx instrumentDynatrace:

android: {
  config: `
    dynatrace {
      configurations {
        defaultConfig {
          autoStart{
            ...
          }
          debug.agentLogging true
        }
      }
    }
  `
}

iOS

Add the following configuration snippet to your other configuration in dynatrace.config.js (the whole structure is visible, so you know where the config belongs) and run npx instrumentDynatrace:

ios: {
  config: `
  <key>DTXLogLevel</key>
  <string>ALL</string>
  `
}

How does Dynatrace determine the user action name?

• React views
  • dtActionName: Use a custom property called dtActionName
  • displayName: Use the displayName property to check if React views have a display name set (Not available for functional component)
  • instrumentation string: Auto instrumentation or manual instrumentation is passing a string. This will be used if available.
  • class name: If the display name is not available, the class name is used by taking the property name from the constructor
• Touchables
  • dtActionName: Use a custom property called dtActionName
  • If actionNamePrivacy is activated anything below will not be detected
  • accessibilityLabel property
  • If both are not set, it will search for an inner text
  • If it is an Image Button, it will search for a source
• Buttons
  • dtActionName: Use a custom property called dtActionName
  • If actionNamePrivacy is activated any below will not be detected
  • Button title property
  • accessibilityLabel property
  • If it is an Image Button, it will search for a source
  • If it finds nothing, it will search for an inner text
• Switch, RefreshControl or Picker
  • dtActionName: Use a custom property called dtActionName
  • accessibilityLabel property

Attention: Minification can cause a loss of information.

Using dtActionName to change the name of the action

We check for a property named dtActionName when creating an action. If dtActionName exists, this will be used for the action name above every other option listed in the previous section. Examples:

Typescript:

<TouchableHighlight {...{ "dtActionName": "CustomActionName" }}><Text>Custom Action Name</Text></TouchableHighlight>

JavaScript:

<TouchableHighlight dtActionName="CustomActionName"><Text>Custom Action Name</Text></TouchableHighlight>

Note: actionNamePrivacy has no impact on using dtActionName. dtActionName will always be used.

How does Dynatrace automatically report crashes?

In general, Dynatrace always closes the session when a crash occurs. Usually a crash is when the application gets fully terminated. In React Native, we also see fatal errors in the JavaScript part as a full crash even though the native application is still alive. When this happens we will end the session. This is due to visibility reasons and may change in the future. The automated crash reporting will be (automatically) put in place by the transformer at the very beginning of the application. Using a custom error handler afterwards will not interfere with our crash handler.

Note: The behavior mentioned below occurs if an error contains a stacktrace or if the stacktrace is empty/missing.

• Non fatal error: If the internal React Native crash handler shows the error is not fatal, we will report it as error.
• Fatal error: If the error is considered as fatal by the React Native crash handler, it will be treated as crash.
• Native crashes: If a crash appears solely on the native side and is not noticed by the internal React Native crash handler, it will be reported directly by the Android or iOS agent.
  • Exception: Some JavaScript crashes will result in Native crashes. Therefore, they are filtered on the native side as normally the crash would be reported twice. On the JavaScript side, these crashes are already reported by us before they hit the native side resulting in no lost information. Additionally, you can use our crash and error reporting APIs which are available with manual instrumentation.

React Automatic Runtime

React introduced with React v17.x, React v16.14.0, React v15.7.0, and React v14.10 the automatic runtime which changes the JSX transformation (https://reactjs.org/blog/2020/09/22/introducing-the-new-jsx-transform.html).

This impacts our instrumentation as well. To keep the instrumentation in place you need to change your babel configuration.

For our instrumentation to work properly, you will need to add the importSource property:

module.exports = {
  plugins: [
    [
      "@babel/plugin-transform-react-jsx",
      {
        runtime: "automatic", 
        importSource: "@dynatrace/react-native-plugin"
      }
    ]
  ]
}

Using babel-preset-expo:

module.exports = function (api) {
  api.cache(true);
  return {
    presets: [
      ['babel-preset-expo',
        {
          jsxRuntime: 'automatic',
          jsxImportSource: '@dynatrace/react-native-plugin',
        },
      ],
    ],
  };
};

Using @react-native/babel-preset:

module.exports = {
  presets: [
    ['module:@react-native/babel-preset'],
  ],
  plugins: [
      [
          '@babel/plugin-transform-react-jsx',
          {
              runtime: 'automatic',
              importSource: "@dynatrace/react-native-plugin"
          },
      ],
  ],
};

Using metro-react-native-babel-preset:

module.exports = {
  presets: [
    ['module:metro-react-native-babel-preset'],
  ],
  plugins: [
      [
          '@babel/plugin-transform-react-jsx',
          {
              runtime: 'automatic',
              importSource: "@dynatrace/react-native-plugin"
          },
      ],
  ],
};

Using a second transformer besides the dynatrace transformer

If you want to register the Dynatrace transformer in your configuration and you already have a transformer in place, change the upstreaming transformer for the Dynatrace transformer.

This can be done via a configuration value in the dynatrace.config.js. The following example shows how the configuration might look like for the popular react-native-svg-transformer. Be aware that the following example is targeting React Native v0.72.1 or newer.

dynatrace.config.js

// The `...` only indicates that there are other values as well, but we've omitted them in this example.
module.exports = {
    react : {
        upstreamTransformer: require.resolve('customTransformerLib/myTransformer'),
        ...
    },
    ...       
}

metro.config.js for React Native v0.72.1 or newer

const {getDefaultConfig, mergeConfig} = require('@react-native/metro-config');
const defaultConfig = getDefaultConfig(__dirname);
const {assetExts, sourceExts} = defaultConfig.resolver;

/**
 * Metro configuration
 * https://facebook.github.io/metro/docs/configuration
 *
 * @type {import('metro-config').MetroConfig}
 */
const config = {
  transformer: {
    babelTransformerPath: require.resolve(
      '@dynatrace/react-native-plugin/lib/dynatrace-transformer',
    ),
  },
  reporter: require('@dynatrace/react-native-plugin/lib/dynatrace-reporter'),
  resolver: {
    assetExts: assetExts.filter(ext => ext !== 'svg'),
    sourceExts: [...sourceExts, 'cjs', 'svg'],
  },
};

module.exports = mergeConfig(defaultConfig, config);

metro.config.js for React Native v0.59 or newer

const { getDefaultConfig } = require("metro-config");

module.exports = (async () => {
  const {
    resolver: { sourceExts, assetExts }
  } = await getDefaultConfig();
  return {
    transformer: {
      babelTransformerPath: require.resolve('@dynatrace/react-native-plugin/lib/dynatrace-transformer')
    },
    reporter: require('@dynatrace/react-native-plugin/lib/dynatrace-reporter'),
    resolver: {
      assetExts: assetExts.filter((ext) => ext !== "svg"),
      sourceExts: [...sourceExts, "cjs", "svg"]
    }
  };
})();

Maven Central in top-level gradle file

Because the Dynatrace Android agent now requires the MavenCentral repository, if either jcenter() or mavenCentral() is not added inside of ALL the repositories blocks via the top-level build.gradle, the build will fail. Below is an example of what a basic top-level build.gradle file should look like after adding mavenCentral() to all repository blocks:

The location of the top-level build.gradle should be:

• <rootOfProject>\android\build.gradle

Note: JCenter has noted its sunset on May 1st. Though, JCenter is still syncing with Maven Central so havingjcenter() in your build.gradle file without the use of mavenCentral() will retrieve the Dynatrace Android Gradle Plugin no problem.

Updating to Gradle 7

Updating Gradle only affects your Android build. To update your project to Gradle 7, modify the following 3 files in your Android folder.

• ProjectFolder\android\gradle\wrapper\gradle-wrapper.properties Update the distributionUrl to get a newer gradle version.

distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.4-all.zip

• ProjectFolder\android\build.gradle Update the version of your Android gradle plugin (minimum 7.x) as Gradle 7 needs a newer one. To get the newer versions, add google() in your repositories. Example of a build.gradle file:

buildscript {
    repositories {
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:x.x.x'
    }
}

allprojects {
    repositories {
        google()
        mavenLocal()
        jcenter()
        maven {
            url "$rootDir/../node_modules/react-native/android"
        }
    }
}

• ProjectFolder\android\app\build.gradle This depends on how old your React Native project really is. You must change your used buildTools, compileSdkVersion, targetSdkVersion and support libaries. Older build.gradle files might look similar to this with unimportant parts removed to make the snippet smaller:

...

apply from: "../../node_modules/react-native/react.gradle"

...

android {
    compileSdkVersion 28
    buildToolsVersion "28.0.3"

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 28

        ...
    }

    ...
}

dependencies {
    compile "com.android.support:appcompat-v7:28.0.0"
    compile "com.facebook.react:react-native:+" 
}

...

Configuration of standalone React Native project

This section explains the configuration of a standalone React Native project. This means you have a React Native project, but don't use the typicial iOS and android folders. Instead you have a seperate native iOS or android project which is embedding your React Native project.

To get the same experience as somebody who has a combined project, you roughly need to do the following things:

• Apply Auto Instrumentation to your Native Project
• Add this plugin to your React Native project

Auto Instrumentation of your Native Project

The mobile application in the web UI offers you a configuration wizard (see settings page) for your native project (Android/iOS). Use it and apply it to your seperated native project according to this documentation:

• Android: https://www.dynatrace.com/support/help/technology-support/operating-systems/android/instrumentation-via-plugin/instrumentation-via-plugin/
• iOS: https://www.dynatrace.com/support/help/technology-support/operating-systems/ios/instrumentation/dynatrace-auto-instrumentation-for-ios/

Add this plugin to your React Native project

After you have added the auto instrumentation to your native project, you need to add this plugin to your standalone react native project.

You can simply follow the setup shown in the beginning of this documentation. There is no special handling needed, except skipping step 4, as it is of course not needed as you usually create a bundle when building a standalone project.

• Optional: You can remove the android and ios block from your dynatrace.config.js. It has no impact on the plugin as the configuration of the native platforms is skipped because of the missing iOS and android folder.

Dynatrace documentation

The OneAgent for Android and iOS documentation is available at the following locations:

• Android: https://www.dynatrace.com/support/help/setup-and-configuration/oneagent/android/
• iOS: https://www.dynatrace.com/support/help/setup-and-configuration/oneagent/ios/

Note: The Dynatrace Android Gradle plugin is hosted on Maven Central. JCenter has noted it's sunset on May 1st so Maven Central is the primary source of the Dynatrace Android Gradle plugin.

Instrumentation Overhead

When using auto-instrumenation through our plugin, here are some examples of the size differences before and after instrumentation for release builds:

| Operating System | App template | Version | Size Before | Size After | Difference | |----------------------|-------------------------|----------------|-----------------|----------------|----------------| | Android | Default new app | 0.74.3 | 50.7 MB | 50.9 MB | 0.2 MB | | iOS | Default new app | 0.74.3 | 28.1 MB | 36.5 MB | 8.4 MB |

Troubleshooting and applicable restrictions

Attention: If you think something is not working the way it should, ALWAYS try to reset the cache of metro first before starting a support case. You can do this via the CLI react-native start --reset-cache. If it still does not work feel free to open a support case.

To resolve problems with the plugin, first look at creating logs and identify what went wrong. The logs can be found in the plugins folder of your React Native project (usually node_modules/@dynatrace/react-native-plugin/logs).

• An error such as DynatraceNative.PLATFORM_ANDROID is null indicates that the linking of the native library didn't work correctly. Often, React Native is unable to link correctly. Simply unlink (react-native unlink) and link (react-native link) again and the error should be gone.
• Missing property DTXApplicationID indicates that there is no configuration available. Ensure that you've called npm run updateConfiguration at least once.
• If you change your project to pods when you have already installed the plugin, duplicate symbols are generated because of the already linked library. Remove the module reference manually from your project.
• Build failes with the error of "No configuration for the Dynatrace Android Gradle plugin found! Please copy the configuration block from the instrumentation wizard to the proper location." ** The android configuration was not added to your project. Please refer to the install the plugin section.
• For Android, if you see an error like "Gradle sync failed: Could not find com.dynatrace.tools.android:gradle-plugin:8.223.1.1003.", please see the MavenCentral section for an example and more information.
• When using NodeJS version 15+ and version 2.231.1 of our plugin you could encounter the following error: npm ERR! Could not resolve dependency: npm ERR! peer react@"^16.0" from @react-native-community/[email protected]. Using the old deprecrated Picker dependency was causing peer dependency issues so we updated the auto-instrumentation to use the new Picker dependency. If you are still using this @react-native-community/picker, you can manually instrument the picker without issue (create custom actions).
• To disable the error handler when using manual startup, you will need to use/migrate to the ConfigurationBuilder instead of the deprecated ManualStartupConfiguration. There is no option to disable the crash handler using ManualStartupConfiguration.

Supported and Unsupported libraries

Important note: If the library you are using is not on either the support or unsupported list, that does not mean that this plugin is not compatible with the library.

Supported:

• @react-native-picker/picker
• axios
• react-native-gesture-handler
• react-native-webview
• Custom libraries that directly use the default React Native components (i.e. Button)

Unsupported:

• NativeWind

Report a bug or open a support case

Attention: If you think something is not working the way it should, ALWAYS try to reset the cache of metro first before starting a support case. You can do this via the CLI react-native start --reset-cache. If it still does not work feel free to open a support case.

If you are struggling with a problem, submit a support ticket to Dynatrace (support.dynatrace.com) and provide the following details:

• Logs from the native agent
• Logs from node_modules/@dynatrace/react-native-plugin/logs
• Your dynatrace.config.js file

Changelog

2.305.1

• Updated Android (8.305.1.1005) & iOS Agent (8.305.3.1016)

2.303.2

• Updated Android (8.303.2.1014) & iOS Agent (8.303.1.1004)
• Android Gradle Plugin version requirement raised to 7.0+
• Gradle Plugin version requirement raised to 7.0+
• Fixed warnings for jsx runtime when using expo

2.301.2

• Updated Android (8.301.1.1004) & iOS Agent (8.301.1.1008)
• Fix iOS crashes to not report on session after crash
• RectButton check/logic updated
• Improved startup log line
• Updated crash type for manually reported iOS crashes using reportCrashWithException

2.299.1

• Updated Android (8.299.1.1004) & iOS Agent (8.299.1.1003)

2.297.2

• Updated Android (8.297.1.1003) & iOS Agent (8.297.1.1004)
• Added information about Instrumentation Overhead to README
• Fixed manual webrequest timing missing stopWebRequestTimingWithSize in iOS

2.295.1

• Updated Android (8.295.1.1006) & iOS Agent (8.295.1.1020)
• Add list of supported/unsupported libraries to README

2.293.2

• Updated Android (8.293.1.1003) & iOS Agent (8.293.1.1003)