Ways to identify when a user goes offline following an $http request

I'm trying to determine the network connectivity status (online/offline) following an unsuccessful request using the $http service in AngularJs. Despite examining all response parameters in the error handler, I couldn't find any information that could assist me.

Your assistance is greatly appreciated, Olivier

Here is the code snippet for the request:

$http({ method: method, url: url, data: data, headers: headers })
  .success(function (result) {
    deferred.resolve(result);
  })
  .error(function (data, status, headers, config, statusText) {
    console.log(data);
    console.log(status);
    console.log(headers);
    console.log(config);
    console.log(statusText);
    deferred.reject();
  });

The following details are displayed in the console:

GET http://192.168.0.12:3000/test net::ERR_INTERNET_DISCONNECTED ionic.bundle.js:16185
 backEnd.js:25
0 backEnd.js:26
function (name) {
    if (!headersObj) headersObj =  parseHeaders(headers);

    if (name) {
      return headersObj[lowercase(name)] || null;
    }

    return headersObj;
  } backEnd.js:27
Object {method: "GET", transformRequest: Array[1], transformResponse: Array[1], url: "http://192.168.0.12:3000/test", data: null…} backEnd.js:28
undefined backEnd.js:29

Answer №1

If you are looking to quickly determine whether you are connected to the internet or not, you can use the following code:

if (navigator.onLine) {
  alert('You are currently online');
} else {
  alert('You are currently offline');
}

To explore more techniques for checking online/offline status, visit: http://www.html5rocks.com/en/mobile/workingoffthegrid/

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