Angular.js ajax calls status management

This is a super light Angular.js library without any external dependencies for managing and controlling ajax calls, specially for showing and hiding any kind of indication during a specifc call to and from the server. Installation

Bower

bower install angular-ajax-indicator --save

angular.module('myApp', ['ajax.indicator']);

Getting Started

General idea

The library adds an HttpInterceptor for catching any ajax call that has been created with config.loadingIndicatorId property.e

When this property exists, all its registered indicators will be notified when the ajax call sent to the server, and on the call's response.

Preparing your ajax calls

Adding config.loadingIndicatorId to the ajax call is simple as:

$http.get([URL], {loadingIndicatorId: "[indicatorId string]"})

For example:

$http.get("http://www.rest.com/v1/users, {loadingIndicatorId: "GET_ALL_USERS"})

The HttpInterceptor will catch this specific ajax call and will notify everyone every time this call sent to server and this call's response.

Subscribe and Unsubscribe for notification

Except of the HttpInterceptor, this library also comes with a loadingIndicatorsService which can be injected everywhere you would like.

Subscribing for a specific indicatorId notifications from the HttpInterceptor is simple as:

loadingIndicatorsService.subscribe(
  [IndicatorId], 
  [RequestNotificationCB], 
  [ResponsetNotificationCB]
);

Where:

• [IndicatorId] - a uniqe string representing a specific ajax call
• [RequestNotificationCB] - will be called when this ajax call sent to server
• [ResponsetNotificationCB] - will be called when on ajax call response
• subscribe return value - a uniqe id for the subscription, IMPORTANT - two subscriptions for the same indicatorId will return different id For example:

var uuid = loadingIndicatorsService.subscribe($scope.indicatorId, notifyOnRequest, notifyOnResponse);

Saving this uuid is important when subscribing from within directives, since these directives could also be destroyed and you don't want them to get any notifications:

loadingIndicatorsService.unsubscribe($scope.indicatorId, uuid);