@aws-amplify/core/dist/esm/Reachability/Reachability.native.mjs

Core category of aws-amplify

import { Observable } from 'rxjs';
import { ConsoleLogger } from '../Logger/ConsoleLogger.mjs';

// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
const logger = new ConsoleLogger('Reachability', 'DEBUG');
class Reachability {
    networkMonitor(netInfo) {
        /**
         * Here netinfo refers to @react-native-community/netinfo
         * This is needed in React Native to enable network detection
         * We do not import it in Core so that Apps that do not use DataStore
         * Do not need to install and link this dependency
         * When using Reachability in React Native, pass NetInfo as a param to networkMonitor
         */
        if (!(netInfo && netInfo.addEventListener)) {
            throw new Error('NetInfo must be passed to networkMonitor to enable reachability in React Native');
        }
        return new Observable(observer => {
            logger.log('subscribing to reachability in React Native');
            const unsubscribe = netInfo.addEventListener(({ isInternetReachable }) => {
                // `isInternetReachable` can sometimes be `null` initially, so we want
                // to make sure it is a boolean first before sending it to the observer.
                if (typeof isInternetReachable === 'boolean') {
                    const online = isInternetReachable;
                    logger.log('Notifying reachability change', online);
                    observer.next({ online });
                }
            });
            return () => {
                unsubscribe();
            };
        });
    }
}

export { Reachability };
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