mattermost-mobile/app/utils/network.js
2018-06-19 19:14:50 -04:00

50 lines
1.6 KiB
JavaScript

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
import {NetInfo} from 'react-native';
import RNFetchBlob from 'react-native-fetch-blob';
import {Client4} from 'mattermost-redux/client';
const PING_TIMEOUT = 10000;
export async function checkConnection(isConnected) {
if (Client4.getBaseRoute() === '/api/v4') {
// If we don't have a server yet, return the default implementation
return isConnected;
}
// Ping the Mattermost server to detect if the we have network connection even if the websocket cannot connect
const server = `${Client4.getBaseRoute()}/system/ping?time=${Date.now()}`;
try {
await RNFetchBlob.config({timeout: PING_TIMEOUT}).fetch('GET', server);
return true;
} catch (error) {
return false;
}
}
function handleConnectionChange(onChange) {
return async (isConnected) => {
// Set device internet connectivity immediately
onChange(isConnected);
// Check if connected to server
const result = await checkConnection(isConnected);
onChange(result);
};
}
export default function networkConnectionListener(onChange) {
const connectionChanged = handleConnectionChange(onChange);
NetInfo.isConnected.addEventListener('connectionChange', connectionChanged);
NetInfo.isConnected.fetch().then(connectionChanged);
const removeEventListener = () => NetInfo.isConnected.removeEventListener('connectionChange', connectionChanged); // eslint-disable-line
return {
removeEventListener,
};
}