client_information

Client Information

This is a plugin that lets you get basic information from your application's client. It's easy to use and supports different platforms (Android, iOS, and Web). There are four different information types: "application information", "software information", "operating system information", and "device information".

iOS screenshot

Android screenshot

Web screenshot

Information Types

There are 4 different types:

1. Application Information
2. Software Information
3. Operating System Information
4. Device Information

Application Information

Application information is all about the application you build. And notice that applicationId is not supported for web applications.

Attribute	iOS	Android	Web
applicationId String	⭕ bundleIdentifier	⭕ package name	❌ default: application name
applicationType String (app/web)	⭕	⭕	⭕
applicationName String	⭕	⭕	⭕
applicationVersion String	⭕	⭕	⭕
applicationBuildCode String	⭕	⭕	⭕

Software Information

"Software" stands for the "software" that runs your application, such as "Operating System" for iOS/Android projects or "Browser" for web projects.

Attribute	iOS	Android	Web
softwareName String	⭕ OS name	⭕ OS name	⭕ Browser name
softwareVersion String	⭕ OS version	⭕ OS version	⭕ Browser version

Operating System Information

OS information will show you the OS's name and version. Notice: Web projects may not get this information if the browser's user-agent doesn't contain any information about the operating system.

Attribute	iOS	Android	Web
osName String	⭕ OS name	⭕ OS name	⚠️ OS name (*unknown possible)
osVersion String	⭕ OS version	⭕ OS version	⚠️ OS Version (*unknown possible)
osVersionCode String	⭕ iOS version(number)	⭕ Android API level	⚠️ OS Version(number) (*unknown: -1)

Device Information

The device information will display device's ID and name. Note that web projects don't support real deviceId, so they will use the package uuid to generate a unique string and save to the browser's cookie.

Attribute	iOS	Android	Web
deviceId String	⭕	⭕	⭕
deviceName String	⭕	⭕	❌ default: osName osVersion / browserName browserVersion (e.g. iOS 14 / Chrome 88.0)

Getting Started

In the pubspec.yaml of your flutter project, add the following dependency:

dependencies:
  ...
  client_information: ^2.2.0

In your project add the following import:

import 'package:client_information/client_information.dart';

Then, you can get information like this:

// Get client information
ClientInformation info = await ClientInformation.fetch();

print(info.deviceId); // EA625164-4XXX-XXXX-XXXXXXXXXXXX
print(info.osName); // iOS

Decoration

Starting from version 2.1.0, you can customize some information by passing the decorators. Like below:

var information = await ClientInformation.fetch(
      // you can pass decorators to decoration the value before it return.
      decorators: ClientInformationDecorators(
        deviceId: (oriInfo, value) =>
            'prefix-$value-${oriInfo.applicationName}',
      ),
    );

Or, you can use extension method like this:

var information = await ClientInformation.fetch();
print('Original DeviceId: ${information.deviceId}');
// Original DeviceId: EA625164-4XXX-XXXX-XXXXXXXXXXXX

var decoratedInfo = information.decoration(deviceId: (oriInfo, value) => '$value-some-suffix-string-here');
print('Decorated DeviceId: ${decoratedInfo.deviceId}');
// Decorated DeviceId: EA625164-4XXX-XXXX-XXXXXXXXXXXX-some-suffix-string-here

Mock Data for Test

Starting from version 1.0.2, you can mock data or enable "mockMode" to facilitate testing. Here is how to set it up:

In your test file:

setUp(() async {
  // Change to "MockMode" and set the default data you need.
  ClientInformation.mockOn(
      deviceId: 'mock_device_id', osName: 'MyCustomOS');
});

tearDown(() {
  // Close the "MockMode" in tearDown method
  ClientInformation.mockOff();
});

// Run your test
test('`deviceId` will be "mock_device_id"', () async {
  ClientInformation info = await ClientInformation.fetch();
  expect(info.deviceId, 'mock_device_id');
});