expo-application
@amazon-devices/expo-application
retrieves native application information such as its ID, app name, and build version at runtime.
Installation
- Add the JavaScript library dependency in the
package.json
file.dependencies: { ... "@amazon-devices/expo-application": "~2.0.0", ... }
- Reinstall dependencies using
npm install
command.
Examples
import * as Application from '@amazon-devices/expo-application';
import React, {useEffect, useState} from 'react';
import {StyleSheet, Text, View} from 'react-native';
export const App = () => {
const [installationTime, setInstallationTime] = useState<Date>();
const [updateTime, setUpdateTime] = useState<Date>();
useEffect(() => {
Application.getInstallationTimeAsync().then(setInstallationTime);
Application.getLastUpdateTimeAsync().then(setUpdateTime);
}, []);
return (
<View style={styles.container}>
<Text style={styles.text}>
applicationId: {Application.applicationId}
</Text>
<Text style={styles.text}>
applicationName: {Application.applicationName}
</Text>
<Text style={styles.text}>
nativeApplicationVersion: {Application.nativeApplicationVersion}
</Text>
<Text style={styles.text}>
nativeBuildVersion: {Application.nativeBuildVersion}
</Text>
<Text style={styles.text}>
getInstallationTimeAsync: {installationTime?.toLocaleString()}
</Text>
<Text style={styles.text}>
getLastUpdateTimeAsync: {updateTime?.toLocaleString()}
</Text>
</View>
);
};
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: 'white',
},
text: {
fontSize: 32,
color: 'black',
},
});
API reference
Check out the dedicated documentation page for info about this library, API reference and more: Official Expo documentation for expo-application.
Constants
Constant | Description |
---|---|
applicationId |
The ID of the application |
applicationName |
The human-readable name of the application that is displayed with the app's icon on the device's home screen or desktop |
nativeApplicationVersion |
The human-readable version of the native application that may be displayed in the app store |
nativeBuildVersion |
The internal build version of the native application that the app store may use to distinguish between different binaries |
Methods
Method | Description |
---|---|
getInstallationTimeAsync |
Gets the time the app was installed onto the device, not counting subsequent updates |
getLastUpdateTimeAsync |
Gets the last time the app was updated |
Supported versions
Package Version | Based On | @amazon-devices/react-native-kepler version |
---|---|---|
2.0.x | 5.6.0 | 2.0.x |
Additional resources
For information on additional libraries, see Supported Third-Party Libraries and Services.
Last updated: Sep 30, 2025