angular-post-fix.js

// Modifies $httpProvider for correct server communication (POST variable format)
angular.module('http-post-fix', [], function($httpProvider) {
  // This code is taken from http://victorblog.com/2012/12/20/make-angularjs-http-service-behave-like-jquery-ajax/
  
  // Use x-www-form-urlencoded Content-Type
  $httpProvider.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded;charset=utf-8';

  // Override $http service's default transformRequest
  $httpProvider.defaults.transformRequest = [function(data) {
    /**
     * The workhorse; converts an object to x-www-form-urlencoded serialization.
     * @param {Object} obj
     * @return {String}
     */ 
    var param = function(obj) {
      var query = '';
      var name, value, fullSubName, subValue, innerObj, i;
      
      for(name in obj) {
        value = obj[name];
        
        if(value instanceof Array) {
          for(i=0; i<value.length; ++i) {
            subValue = value[i];
            fullSubName = name + '[' + i + ']';
            innerObj = {};
            innerObj[fullSubName] = subValue;
            query += param(innerObj) + '&';
          }
        } else if(value instanceof Object) {
          for(subName in value) {
            subValue = value[subName];
            fullSubName = name + '[' + subName + ']';
            innerObj = {};
            innerObj[fullSubName] = subValue;
            query += param(innerObj) + '&';
          }
        } else if(value !== undefined && value !== null) {
          query += encodeURIComponent(name) + '=' + encodeURIComponent(value) + '&';
        }
      }
      
      return query.length ? query.substr(0, query.length - 1) : query;
    };
    
    return angular.isObject(data) && String(data) !== '[object File]' ? param(data) : data;
  }];
});