Backbone.js ajaxRetry

Exponentially retry Backbone.ajax and $.ajax requests

Installation

npm install --save backbone-ajaxretry

 
In your client app main.js, add the following line to default retry settings:

require('backbone-ajaxretry');

Or override any of the default settings using set: passing keyword arguments

require('backbone-ajaxretry').set({ y:0.3 });

Usage

The default settings are:

{
  base: 2.718281828,
  y: 0.25,
  retryCount: 3,
  onlyBackbone: false
}

By default both Backbone.ajax and $.ajax Server Errors are retried. To only retry Backbone.ajax requests and not also [regular] $.ajax requests, change the onlyBackbone default setting to true.

For Backbone.js sync, fetch, save or destroy, pass exhaust in the options object as a callback function to run when retries fail

• please note that exhaust supersedes the error callback
• if exhaust method is not passed, retries will end without further action
• the returned jqXHR object has been extended with the ajax request options,
  thus allowing jqXHR.type, jqXHR.url, etcetera

// Backbone ex.
myModel.fetch({
  exhaust : function (jqXHR, textStatus, errorThrown) {
    // Handle Internal Server Error
  }
});
 
// $.ajax ex.
$.ajax({
  url: '/test',
  type: 'GET',
  exhaust : function (jqXHR, textStatus, errorThrown) {
    // Handle Internal Server Error
  }
});

• Changelog >>> releases

• Dependency: Underscore.js
  • Implied:
    • Backbone.js
      • jQuery, zepto.js, ENDER or even your own $ library which defines $.ajax

• npmjs.org/package/backbone-ajaxretry