README.md

XHR-Queue

A simple implementation of requests queue for HTTPClient object of Appcelerator Titanium's framework.

Usage :

To access this module from JavaScript, you need to do the following:

var XHR_Queue = require("XHR-Queue");
var XHR = new XHR_Queue();

When you want to add an HTTP request to the queue you just have write these lines:

XHR.add( method, url, onSuccess, onError )
[ .add( method, url, onSuccess, onError ) ]
.start( [callback] );

• add() function pushes the request on the queue.
• start() function executes all the requests on the queue. The next request is executed only after the response's request has arrived.

Property	Type	Description	Required
method	String	HTTP method for this request, one of "GET" , "POST" , "PUT" , "PATCH" , "DELETE".	Yes
url	String	URL for the request.	Yes
onSuccess	Function	Function to be called upon a successful response.	Yes
onError	Function	Function to be called upon a error response.	Yes
callback	Function	Function to be called when all the requests have been executed. This function brings an array with all the responses as parameter.	No

Example :

var XHR_Queue = require("XHR-Queue");
var XHR = new XHR_Queue();

function onSuccess(res){
  Ti.API.error(JSON.stringify(res));
}
function onError(res){
  Ti.API.error(JSON.stringify(res));
}
function onEnd(res){
  Ti.API.error("REQUESTS EXECUTED : "  + JSON.stringify(res));
}
// URLS
var first_url = "https://api.github.com/users/grazianogrespan";
var second_url = "https://jsonplaceholder.typicode.com/posts";
var third_url = "https://jsonplaceholder.typicode.com/users";

// PAYLOAD
var data = {textMessage: "Hello World!"};

XHR.add("GET",first_url,onSuccess,onError)
   .add("POST",second_url,onSuccess,onError,data)
   .add("GET",third_url,onSuccess,onError)
   .start(onEnd);

TODO :

• Add request headers and options