Middleware React Native SDK

Middleware React Native Real User Monitoring SDK

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Features

• AutoInstrumentation HTTP Monitoring
• AutoInstrumentaion JS Errors
• AutoInstrumenation navigation tracking for react-navigation
• AutoInstrumenation native crash errors
• Custom Instrumenation using OpenTelemetry
• Custom logging
• RUM Session Tracking
• Session Recording

Documentation

Compatibility & Requirements

Middleware React Native for Mobile supports React Native 0.68 and higher.

The library is also compatible with the following frameworks and libraries:

• Expo framework
• React Navigation 5 and 6

Installation

yarn add @middleware.io/middleware-react-native

Usage

import { MiddlewareWrapper, type ReactNativeConfiguration } from '@middleware.io/middleware-react-native';
        
const MiddlewareConfig: ReactNativeConfiguration = {
    serviceName: 'Mobile-SDK-ReactNative',
    projectName: '$Mobile-SDK-ReactNative',
    accountKey: '<middleware-account-key>',
    target: '<target-url>',
    deploymentEnvironment: 'PROD',
    globalAttributes: {
        name: '<your-name>',
    },
};

export default function App() { 
    return (
      <MiddlewareWrapper configuration={MiddlewareConfig}>
        // Application Components
      </MiddlewareWrapper>
    );
  }

Custom logging

You can add custom logs such as debug, error, warn, info these logs will be shown on Middleware Logs Dashboard

MiddlewareRum.debug("I am debug");
MiddlewareRum.error("I am error");
MiddlewareRum.info("I am info");
MiddlewareRum.warn("I am warn");

Setting Global Attributes

You can set global attributes by calling setGlobalAttributes function.

MiddlewareRum.setGlobalAttributes({
    "name": "Middleware",
    "app.version": "1.0.0",
    "custom_key": "some value"
});

Network instrumentation

To ignore capturing urls pass Array<String | RegExp> in ignoreUrls key in ReactNativeConfiguration

Example:

  ignoreUrls: [/^\/api\/facts/, /^\/api\/v1\/users\/.*/],

Note: By default SDK captures following Content-type

• application/json
• application/text
• text/x-component

To redact network headers Set<String> in ignoreHeaders key in ReactNativeConfiguration

Example:

ignoreHeaders: new Set(['x-ignored-header']),

Note: By default x-access-token will be readacted.

To disable network instrumentation set networkInstrumentation: false

const MiddlewareConfig: ReactNativeConfiguration = {
    ...
    networkInstrumentation: false
};

Distributed Tracing

To enable distributed tracing you need to pass backend domains in tracePropagationTargets which takes values in Array<Regex>

Example:

const MiddlewareConfig: ReactNativeConfiguration = {
    ...
    tracePropagationTargets: [/api.example.com/, /anotherapi.example.com/]
};

Reporting custom errors

You can report handled errors, exceptions, and messages using the reportError function

try{
    throw new Error("I am error")
} catch (err) {
    MiddlewareRum.reportError(err);
}

Updating location information

You can set latitude & longitde as global attributes.

MiddlewareRum.updateLocation(latitude: number, longitude: number)

Enable session recording

By default session recording is enabled, to disable session recording pass sessionRecording: false configuration as follows -

const MiddlewareConfig: ReactNativeConfiguration = {
    serviceName: 'Mobile-SDK-ReactNative',
    projectName: '$Mobile-SDK-ReactNative',
    accountKey: '<middleware-account-key>',
    target: '<target-url>',
    sessionRecording: false,
    deploymentEnvironment: 'PROD',
    globalAttributes: {
        name: '<your-name>',
    },
};

Sanitizing views in session recording

Views will get blurred hiding sensitive information in session recording.

<MiddlewareSanitizedView>
  <Component/>
</MiddlewareSanitizedView>

Contributing

See the contributing guide to learn how to contribute to the repository and the development workflow.

License

Apache 2.0