Sending Multiple Requests At The Same Time In AJAX

**technika** · 03-02-2010

Hello, I am learning the AJAX programming and while learning it, I want to know the details from which I can able to Send Multiple Requests At The Same Time. I have read this question on the internet, but there were no specific solution is given. But, I want to get the solution for it. If anyone is having solution or script to achieve it, then please provide me that. It will be helpful to me.

**Zecho** · 03-02-2010

Hey, Same here, On my web page, I have several buttons that send AJAX requests. How should I manage it? I understand that they must send a single Ajax request has a time because we could have problems in some browsers: it's for me to manage or framework does this automatically. I also need this solution, so please provide me some solution from which I can able to get the solution. Thank you in advance.

**Reegan** · 03-02-2010

I think you have a option of the Switch to synchronous. This option, blocks any treatment as the previous ajax request is not returned. But it is a solution of last resort, for example:

Code:

$.ajax(
{
  async: false,
  url: 'ajax / test.html',
  success: function(data) 
{
    alert('Start')
  }
});

**opaper** · 03-02-2010

In your json object returned by the server you will have several 'key': 'value' of these elements you are going to spend what you want and get a callback function for javascript. Specifically, if you click on a button:

Code:

/ / Your function ajax will be the next
 
$.ajax({
  dataType: "json",
  url: 'ajax / test.html',
  success: function(data) {
    if (data.callback) eval(data.callback + '(' + Data.result + ')' );
  }
});
 / / Your server will return data in JSON format
/ / Eg ( "result": "Totto is nice", "callback": "myfunc")
/ / When you RECOVERED this server you must have a function myfunc () as follows
 
function my_function(result)
{
 alert(result);
}

**kelfro** · 03-02-2010

If you want to send Multiple Requests at the same time then you can make use of the three ways as follow:

First solution can be the use of the synchronous AJAX requests. If you make use of the synchronous then one connection from the one client will be created.
You can perform the schedule which will help you to create a second connection when one connection closes.
Third and last option can be as the you can collect all of the request.

**MindSpace** · 03-02-2010

You can run two simultaneous requests. For cons it is entirely possible that the query returns are not in the same order as that of your ajax calls. That's why the solution using json and a callback function allows you to properly handle returns without worrying about the order to send ajax requests. It can be possible that it will solve your problem.