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Use two or more URL for different ajax in one click

I need to use more than 1 json from many URL API. For each URL I will do different thing but it has to be a the same time. I will populate some headers of a table with 1 URL, and the info of the table with 2 or 3 URL.
I have something like this:
$(document).ready(function(){
$("#my_button").click(function(){
var urlOne = 'http://example1',
var urlTwo = 'http://example2'
$.ajax({
url: urlOne,
success: function(result){
console.log(result);
$('#some_div').hide();
$('#another_div').show();
$('.some_class').append(result[0].some_data);
etc...
},
error: function (exception) {
$('#modal_error').modal('show');
}
});
$.ajax({
url: urlTwo,
success: function(result){
$('#myTabContent').show();
populateHeaders($("#headers"),result);
etc...
}
});
//And maybe more ajax calls.
});
});
How can accomplish that?

In this case, I use to create methods and call it when ajax success
for example
$.ajax({
url: urlOne,
success: function(result){
console.log(result);
$('#some_div').hide();
$('#another_div').show();
$('.some_class').append(result[0].some_data);
hereFunctionCallAnotherAjaxOne();
},
error: function (exception) {
$('#modal_error').modal('show');
}
});
const hereFunctionCallAnotherAjaxOne = () => {
$.ajax({
url: urlTwo,
success: function(result){
$('#myTabContent').show();
populateHeaders($("#headers"),result);
}
});
}
But read about Promises and how it works with JavaScript REST API

Ajax callback to check variables as global

I'm trying to implement a function that after consulting a service brings the variables as global.
function ajax_test(str1, callback){
$.ajax({
url: '/path/service',
type: 'POST',
dataType: "json",
data: {'vars':$('form').serialize(), 'test':123},
success: function(data, status, xhr){
callback(data);
}
});
}
and I'm trying to call like this:
ajax_test("str", function(url) {
//do something with url
console.log(url);
});
Now, if I just call ajax_test() it returns an error, saying that callback is not a function.
How would be the best way to simply call the function and get the results to use global variables?
Edit:
I think a good question is: what is a good alternative to async: false? How is the best way to implement synchronous callback?
Edit 2:
For now, I'm using $.post() with $.ajaxSetup({async: false}); and it works how I expect. Still looking a way I could use with a callback.

Have to set the scope inside the success method. Adding the following should work.
function ajax_test(str1, callback){
$.ajax({
url: '/path/service',
type: 'POST',
dataType: "json",
data: {'vars':$('form').serialize(), 'test':123},
success: function(data, status, xhr){
this.callback(data);
}.bind(this)
});
}

As an argument of the ajax_test function, callback is in the scope of the ajax_test function definition and can be called anywhere there, particularly in the successcase. Note that calling ajax_test() without arguments will as expected make your code call a function that does not exist, named callback.
The following sends an Ajax request to the jsFiddle echo service (both examples of callback as anonymous or global function are given in the jsFiddle), and works properly :
function ajax_test(str1, callback){
$.ajax({
url: '/echo/json',
type: 'POST',
dataType: "json",
data: {
json: JSON.stringify({
'vars':$('form').serialize(),
'test':123
})
},
success: function(data, status, xhr){
callback(data);
}
});
}
ajax_test("unusedString", function(data){
console.log("Callback (echo from jsFiddle called), data :", data);
});
Can you check that the webservice you're calling returns successfully ? Here is the jsFiddle, I hope you can adapt it to your need :
https://jsfiddle.net/dyjjv3o0
UPDATE: similar code using an object
function ajax_test(str1) {
this.JSONFromAjax = null;
var self = this;
function callback(data) {
console.log("Hello, data :", data);
console.log("Hello, this :", this);
$("#callbackResultId").append("<p>Anonymous function : " + JSON.stringify(data) + "</p>");
this.JSONFromAjax = JSON.stringify(data);
}
$.ajax({
url: '/echo/json',
type: 'POST',
dataType: "json",
data: {
json: JSON.stringify({
'vars': $('form').serialize(),
'test': 123
})
},
success: function(data, status, xhr) {
console.log("Success ajax");
// 'self' is the object, force callback to use 'self' as 'this' internally.
// We cannot use 'this' directly here as it refers to the 'ajax' object provided by jQuery
callback.call(self, data);
}
});
}
var obj = new ajax_test("unusedString");
// Right after the creation, Ajax request did not complete
console.log("obj.JSONFromAjax", obj.JSONFromAjax);
setTimeout(function(){
// Ajax request completed, obj has been updated
console.log("obj.JSONFromAjax", obj.JSONFromAjax);
}, 2000)
You cannot expect the Ajax request to complete immediately (don't know how it behaves with async: false though, this is why you need to wait for a while before getting the actual response.
Updated jsFiddle here : http://jsfiddle.net/jjt39mg3
Hope this helps!

How to pass a variable from ajax to nested ajax

I'm sending ajax call and getting an answer that I need from the first ajax then I want to pass my result to my nested ajax, my var (result) is null in the nested ajax/settimeout fun, can I pass it ? Am I missing something ?
$.ajax({
url: '#Url.Action("getCustomerGuidId", "Document")',
type: 'POST',
cache: false,
data: { "classNum": currentclassNum},
contentType:'json' ,
dataType:'text',
success: function (result) {
alert(result);**-> is fine - not null**.
// a or result is null when I hit the getCurrentDoc- function althought I get the data I need from getCustomerGuidId function
var a = result;-> tried to pass it to a new var..IDK.. I
thought it will help... it didn't.
setTimeout(function () {
$.ajax({
type: "GET",
url: '#Url.Action("getCurrentDoc", "Document")',
contentType:'text',
data: a,-> here it's null
success: function (data) {
}
});
}, 2000);
},
error: function (result) {
alert("fail " + result);
}
});

You can try something like this will help to pass value to nested ajax call
function test(){
var myText = 'Hello all !!';
$.get({
//used the jsonplaceholder url for testing
'url':'https://jsonplaceholder.typicode.com/posts/1',
'method':'GET',
success: function (data) {
//updating value of myText
myText = 'welcome';
$.post({
'url':'https://jsonplaceholder.typicode.com/posts',
'method':'POST',
//data.title is the return value from get request to the post request
'data':{'title':data.title},
'success':function (data) {
alert(data.title +'\n' + myText);//your code here ...
}
});
}
});
}

An old question and you've likely moved on, but there's still no accepted answer.
Your setTimeout takes an anonymous function, so you are losing your binding; if you have to use a Timeout for some reason, you need to add .bind(this) to your setTimeout call (see below)
setTimeout(function () {
$.ajax({
type: "GET",
url: '#Url.Action("getCurrentDoc", "Document")',
contentType:'text',
data: a,
success: function (data) {
}
});
}.bind(this), 2000);
At a guess you're using a Timeout because you want to ensure that your promise (i.e. the first ajax call) is resolving prior to making the nested call.
If that's your intention, you can actually scrap setTimeout completely as you have the nested call in the first ajax success call, which only runs once the promise has been resolved (providing there isn't an error; if so, jQuery would call error rather than success)
Removing setTimeout means you won't lose your binding, and a should still be result (hopefully a is an object, otherwise your second call is also going to experience issues...)
Lastly, after overcoming the binding issue you wouldn't need var a = result; you should be able to pass result directly to your nested ajax call.
Good luck!

In the nested ajax you send a as a param name, not as a param value.
So you can try the following (change param to actual param name which your server expects):
$.ajax({
url: '#Url.Action("getCustomerGuidId", "Document")',
type: 'POST',
cache: false,
data: { "classNum": currentclassNum},
dataType:'text',
success: function (result) {
setTimeout(function () {
$.ajax({
type: "GET",
url: '#Url.Action("getCurrentDoc", "Document")',
data: {param: result},
success: function (data) {
}
});
}, 2000);
},
error: function (result) {
alert("fail " + result);
}
});

Why can't I do .ajax ( return data; )? jQuery

I'm trying to get my function to return the data it got into another function but it doesn't seem to work? How can I get it to return the data?
function playerid(playername) {
$.ajax({
type: "POST",
url: "fn.php?playerid",
data: "playername="+playername,
success: function(data) {
//$("#test").text(data);
return data;
}
});
}
I want to use it in another function like this
showBids(playerid(ui.item.value));
function showBids(playerid) {
$.ajax({
type: "POST",
url: "poll.php?",
async: true,
dataType: 'json',
timeout: 50000,
data: "playerid="+playerid,
success: function(data) {
//.each(data, function(k ,v) {
//})
//$("#current_high").append(data);
setTimeout("getData()", 1000);
}
});

First of all, your playerid() does not return anything, so what do you want to use? It has only $.ajax() call in it, no return statement (one of the callbacks in $.ajax() has return statement, but see below).
Secondly, JavaScript does some things asynchonously, otherwise every interface element would need to wait to react to user action until the AJAX call returns from the server.
Use event-based approach, by passing callbacks to some functions. Then, after they finish, just call the callbacks passing them the result:
function getplayerid(playername, callback) {
$.ajax({
type: "POST",
url: "fn.php?playerid",
data: "playername="+playername,
success: function(data) {
//$("#test").text(data);
callback(data);
}
});
}
and then use it like that:
getplayerid(ui.item.value, showBids);
(notice function name change since it does not actually return player ID, it gets it and passes it to callback)

You could try to use syncronous Ajax:
function playerid(playername) {
return $.ajax({
type: "POST",
url: "fn.php?playerid",
data: "playername="+playername,
async : false //making Ajax syncronous
}).responseText;
}
Otherwise you need to use showBids function as callback:
function playerid(playername, callback) {
$.ajax({
type: "POST",
url: "fn.php?playerid",
data: "playername="+playername,
success: function(data) {
callback(data);
}
});
}
//Usage
playerid(ui.item.value,showBids);

jquery ajax get return value

i want to get the 'printed value' of html pages.
i tried below query, but showGetResult() just return 'null value'
but my apache server logs printed i accessed index.php when i try this code.
(index.php just print helloworld)
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"><\script>
<script type="text/javascript">
function showGetResult( name )
{
var result = null;
jQuery.ajax({
url: 'http://localhost/index.php',
type: 'get',
dataType: 'text/html',
success:function(data)
{
alert(data);
result = data;
}
});
return result;
}
document.write(showGetResult('test'));
</script>

This is the way AJAX works (asynchronously, like the name suggests). The showGetResult function returns before the AJAX call completes. showGetResult will therefore simply return null since that's what you've assigned to result.
Move any code that depends on the result of the AJAX call inside the success callback. Alternatively, you could make the call synchronous, but that's not usually what you want.

I think what you want to do is this.
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"><\script>
<script type="text/javascript">
function showGetResult( name )
{
jQuery.ajax({
url: 'http://localhost/index.php',
type: 'get',
dataType: 'text/html',
success:function(data)
{
alert(data);
document.write(data);
}
});
}
showGetResult('test');
</script>

AJAX requests are aynchronous by default; you can't return their result in a function, you need to use callbacks. The easiest way to achieve what you want is to put your code that handles your data in your success handler:
success:function(data)
{
alert(data);
result = data;
document.write(showGetResult('test'));
}
Also, don't use document.write.

You have the wrong dataType per the documentation for jQuery.ajax:
"html": Returns HTML as plain text; included script tags are evaluated when inserted in the DOM.
So you want to use html:
...
dataType: 'html',
...
In addition, as others have said, the ajax request is asynchronous. So you need to restructure your code. For example:
function showGetResult( name )
{
var result = null;
jQuery.ajax({
url: 'http://localhost/index.php',
type: 'get',
dataType: 'html',
success:function(data)
{
alert(data);
result = data;
document.write(result);
}
});
}
showGetResult('test');

You're missing a fundamental point here. The success method is not run when you call showGetResult. It is run asynchronously.
At the point that you put return result; it is still null (because success has not yet been invoked).
What you need to do is have document.write execute after success is invoked. Either like this:
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"><\script>
<script type="text/javascript">
function showGetResult( name )
{
var result = null;
jQuery.ajax({
url: 'http://localhost/index.php',
type: 'get',
dataType: 'text/html',
success:function(data)
{
alert(data);
document.write(data);
}
});
return result;
}
//document.write(showGetResult('test'));
showGetResult('test');
</script>
Or with a callback:
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"><\script>
<script type="text/javascript">
function showGetResult( name )
{
var result = null;
jQuery.ajax({
url: 'http://localhost/index.php',
type: 'get',
dataType: 'text/html',
success:function(data)
{
alert(data);
writeToDocument(data);
}
});
}
function writeToDocument(data) {
document.write(data);
}
showGetResult('test');
</script>

Rather than using document.write on what you expect the function to return, the success callback can take care of that for you, like so:
success:function(data) {
document.write(data);
}

jQuery.ajax({
async: false, //add async false
url: 'http://localhost/index.php',
type: 'get',
dataType: 'text/html',
success:function(data)
{
alert(data);
result = data;
}
});