/* * Copyright The OpenTelemetry Authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * https://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import * as dns from 'dns'; export const checkInternet = (cb: (isConnected: boolean) => void) => { dns.lookup('google.com', err => { if (err && err.code === 'ENOTFOUND') { cb(false); } else { cb(true); } }); };