[Home](./index.md) > [@snowplow/react-native-tracker](./react-native-tracker.md) > [PlatformContextRetriever](./react-native-tracker.platformcontextretriever.md) ## PlatformContextRetriever interface Overrides for the values for properties of the platform context. Signature: ```typescript export interface PlatformContextRetriever ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [getAndroidIdfa?](./react-native-tracker.platformcontextretriever.getandroididfa.md) | () => Promise<string \| undefined> | (Optional) Advertising identifier on Android. | | [getAppAvailableMemory?](./react-native-tracker.platformcontextretriever.getappavailablememory.md) | () => Promise<number \| undefined> | (Optional) Amount of memory in bytes available to the current app | | [getAppleIdfa?](./react-native-tracker.platformcontextretriever.getappleidfa.md) | () => Promise<string \| undefined> | (Optional) Advertising identifier on iOS (UUID formatted string) | | [getAppleIdfv?](./react-native-tracker.platformcontextretriever.getappleidfv.md) | () => Promise<string \| undefined> | (Optional) UUID identifier for vendors on iOS | | [getAppSetId?](./react-native-tracker.platformcontextretriever.getappsetid.md) | () => Promise<string \| undefined> | (Optional) Android vendor ID scoped to the set of apps published under the same Google Play developer account (see https://developer.android.com/training/articles/app-set-id). | | [getAppSetIdScope?](./react-native-tracker.platformcontextretriever.getappsetidscope.md) | () => Promise<string \| undefined> | (Optional) Scope of the appSetId. Can be scoped to the app or to a developer account on an app store (all apps from the same developer on the same device will have the same ID). | | [getAvailableStorage?](./react-native-tracker.platformcontextretriever.getavailablestorage.md) | () => Promise<number \| undefined> | (Optional) Bytes of storage remaining | | [getBatteryLevel?](./react-native-tracker.platformcontextretriever.getbatterylevel.md) | () => Promise<number \| undefined> | (Optional) Remaining battery level as an integer percentage of total battery capacity | | [getBatteryState?](./react-native-tracker.platformcontextretriever.getbatterystate.md) | () => Promise<'unplugged' \| 'charging' \| 'full' \| undefined> | (Optional) Battery state for the device | | [getCarrier?](./react-native-tracker.platformcontextretriever.getcarrier.md) | () => Promise<string \| undefined> | (Optional) The carrier of the SIM inserted in the device | | [getDeviceManufacturer?](./react-native-tracker.platformcontextretriever.getdevicemanufacturer.md) | () => Promise<string> | (Optional) The manufacturer of the product/hardware | | [getDeviceModel?](./react-native-tracker.platformcontextretriever.getdevicemodel.md) | () => Promise<string> | (Optional) The end-user-visible name for the end product | | [getLanguage?](./react-native-tracker.platformcontextretriever.getlanguage.md) | () => Promise<string \| undefined> | (Optional) System language currently used on the device (ISO 639) | | [getLowPowerMode?](./react-native-tracker.platformcontextretriever.getlowpowermode.md) | () => Promise<boolean \| undefined> | (Optional) A Boolean indicating whether Low Power Mode is enabled | | [getNetworkTechnology?](./react-native-tracker.platformcontextretriever.getnetworktechnology.md) | () => Promise<string \| undefined> | (Optional) Radio access technology that the device is using | | [getNetworkType?](./react-native-tracker.platformcontextretriever.getnetworktype.md) | () => Promise<'mobile' \| 'wifi' \| 'offline' \| undefined> | (Optional) Type of network the device is connected to | | [getOsType?](./react-native-tracker.platformcontextretriever.getostype.md) | () => Promise<string> | (Optional) Operating system type (e.g., ios, tvos, watchos, osx, android) | | [getOsVersion?](./react-native-tracker.platformcontextretriever.getosversion.md) | () => Promise<string> | (Optional) The current version of the operating system | | [getPhysicalMemory?](./react-native-tracker.platformcontextretriever.getphysicalmemory.md) | () => Promise<number \| undefined> | (Optional) Total physical system memory in bytes | | [getResolution?](./react-native-tracker.platformcontextretriever.getresolution.md) | () => Promise<string \| undefined> | (Optional) Screen resolution in pixels. Arrives in the form of WIDTHxHEIGHT (e.g., 1200x900). Doesn't change when device orientation changes | | [getScale?](./react-native-tracker.platformcontextretriever.getscale.md) | () => Promise<number \| undefined> | (Optional) Scale factor used to convert logical coordinates to device coordinates of the screen (uses UIScreen.scale on iOS) | | [getSystemAvailableMemory?](./react-native-tracker.platformcontextretriever.getsystemavailablememory.md) | () => Promise<number \| undefined> | (Optional) Available memory on the system in bytes (Android only). | | [getTotalStorage?](./react-native-tracker.platformcontextretriever.gettotalstorage.md) | () => Promise<number \| undefined> | (Optional) Total size of storage in bytes | | [isPortrait?](./react-native-tracker.platformcontextretriever.isportrait.md) | () => Promise<boolean \| undefined> | (Optional) A Boolean indicating whether the device orientation is portrait (either upright or upside down) |