@aws-amplify/datastore/dist/cjs/sync/datastoreConnectivity.js

AppSyncLocal support for aws-amplify

'use strict';

Object.defineProperty(exports, "__esModule", { value: true });
// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
const rxjs_1 = require("rxjs");
const datastoreReachability_1 = require("./datastoreReachability");
const RECONNECTING_IN = 5000; // 5s this may be configurable in the future
class DataStoreConnectivity {
    constructor() {
        this.connectionStatus = {
            online: false,
        };
    }
    status() {
        if (this.observer) {
            throw new Error('Subscriber already exists');
        }
        return new rxjs_1.Observable(observer => {
            this.observer = observer;
            // Will be used to forward socket connection changes, enhancing Reachability
            this.subscription = datastoreReachability_1.ReachabilityMonitor.subscribe(({ online }) => {
                this.connectionStatus.online = online;
                const observerResult = { ...this.connectionStatus }; // copyOf status
                observer.next(observerResult);
            });
            return () => {
                clearTimeout(this.timeout);
                this.unsubscribe();
            };
        });
    }
    unsubscribe() {
        if (this.subscription) {
            clearTimeout(this.timeout);
            this.subscription.unsubscribe();
        }
    }
    // for consistency with other background processors.
    async stop() {
        this.unsubscribe();
    }
    socketDisconnected() {
        if (this.observer && typeof this.observer.next === 'function') {
            this.observer.next({ online: false }); // Notify network issue from the socket
            this.timeout = setTimeout(() => {
                const observerResult = { ...this.connectionStatus }; // copyOf status
                this.observer.next(observerResult);
            }, RECONNECTING_IN); // giving time for socket cleanup and network status stabilization
        }
    }
}
exports.default = DataStoreConnectivity;
//# sourceMappingURL=datastoreConnectivity.js.map