What steps can I take to give priority to a particular ajax call?

Question

What steps can I take to give priority to a particular ajax call?

Every 10 seconds, two ajax based methods are executed. However, when I submit the form for processing, it waits for the previous ajax calls to complete before processing. I want to prioritize the form submission.

Below is the script that I am using:

function refresh_ss_one(){
    $.ajax({
       type: 'GET',
       url: "{{ route('RefreshSessionOne') }}",
       data: {}, 
       success: function(response){ 
        console.log(response);
       }
    });
}
function refresh_ss_two(){
    $.ajax({
       type: 'GET',
       url: "{{ route('RefreshSessionTwo') }}",
       data: {}, 
       success: function(response){ 
        console.log(response);
       }
    });
}
setInterval(refresh_ss_one, 10000);
setInterval(refresh_ss_two, 10000);

I have another method that should run on form submission event and needs to be prioritized. Despite using the async parameter in my ajax function, the issue persists.

$("#check-rate").submit(function(e) {
    var form_data = $(this);
    $.ajax({
           type: 'POST',
           url: currency_route,
           data: form_data.serialize(), 
           success: function(response)
           {
              ...
           }
         });
    e.preventDefault(); 
});

I am looking for guidance on how to resolve this issue...

javascript ajax

Answer 1

Answer №1

To achieve a more contemporary solution, consider utilizing a promise:

var promise1 = new Promise(function(resolve, reject) {
   //perform first ajax call here
});

promise1.then((value) => {
//execute second ajax call here
});

For further information on promises, refer to the official documentation.

The promise functionality guarantees that your code will first run the initial ajax call (upon resolving successfully), before proceeding to the subsequent one.

Additionally, you have the flexibility to include multiple promises based on your requirements.

Answer 2

To achieve a more contemporary solution, consider utilizing a promise:

var promise1 = new Promise(function(resolve, reject) {
   //perform first ajax call here
});

promise1.then((value) => {
//execute second ajax call here
});

For further information on promises, refer to the official documentation.

The promise functionality guarantees that your code will first run the initial ajax call (upon resolving successfully), before proceeding to the subsequent one.

Additionally, you have the flexibility to include multiple promises based on your requirements.

Answer 3

Answer №2

Here is one way to approach it:

<script>
// Here is an example of how you can write your ajax function
$.ajax({
    type: 'GET',
    url: "{{ route('RefreshSessionOne') }}",
    data: {},
    async: false,
    success: function(response) {
        console.log(response);
    }
});

// Make sure to complete this request before moving on to other codes.

$.ajax({
    type: 'GET',
    url: "{{ route('RefreshSessionTwo') }}",
    data: {},
    success: function(response) {
        console.log(response);
    }
});

// This code will be executed after the previous async:false request has completed.

By default, in jQuery, the $.ajax request is asynchronous with the variable name "async" set to true.

You also have the option to call the second function within the success part of the first function.

Answer 4

Here is one way to approach it:

<script>
// Here is an example of how you can write your ajax function
$.ajax({
    type: 'GET',
    url: "{{ route('RefreshSessionOne') }}",
    data: {},
    async: false,
    success: function(response) {
        console.log(response);
    }
});

// Make sure to complete this request before moving on to other codes.

$.ajax({
    type: 'GET',
    url: "{{ route('RefreshSessionTwo') }}",
    data: {},
    success: function(response) {
        console.log(response);
    }
});

// This code will be executed after the previous async:false request has completed.

By default, in jQuery, the $.ajax request is asynchronous with the variable name "async" set to true.

You also have the option to call the second function within the success part of the first function.

Answer 5

Answer №3

To seamlessly receive responses in sequence from a list of GET / POST requests, here’s a clever jQuery Deferreds solution for you.

const $ajaxSeq = arr => $.when.apply($, arr.map(data => $.ajax(data))).then(function(_res){ 
     return Array.isArray(_res) ? [].map.call(arguments, res => res[0]) : [_res];
  });

Usage example:

$ajaxSeq([
    {type:'POST', url:'some_url_here', data: {content: "Hello world"}},
    {type:'GET',  url:'some_url_here'},
    {type:'GET',  url:'some_url_here'},
]).then( res => {
    // Upon all requests being fulfilled
    // access the responses sequentially:
    console.log(res[0])
    console.log(res[1])
    console.log(res[2])
});

Answer 6

To seamlessly receive responses in sequence from a list of GET / POST requests, here’s a clever jQuery Deferreds solution for you.

const $ajaxSeq = arr => $.when.apply($, arr.map(data => $.ajax(data))).then(function(_res){ 
     return Array.isArray(_res) ? [].map.call(arguments, res => res[0]) : [_res];
  });

Usage example:

$ajaxSeq([
    {type:'POST', url:'some_url_here', data: {content: "Hello world"}},
    {type:'GET',  url:'some_url_here'},
    {type:'GET',  url:'some_url_here'},
]).then( res => {
    // Upon all requests being fulfilled
    // access the responses sequentially:
    console.log(res[0])
    console.log(res[1])
    console.log(res[2])
});

Answer 7

Answer №4

When AJAX calls are made, they adhere to their name by executing requests asynchronously. This means that one request does not pause to wait for another to finish. As mentioned by @jayoti above, you have the option to make the calls synchronous with async:false. However, it's advisable to create a single method that triggers both methods and then call the second method upon receiving a response.

Answer 8

When AJAX calls are made, they adhere to their name by executing requests asynchronously. This means that one request does not pause to wait for another to finish. As mentioned by @jayoti above, you have the option to make the calls synchronous with async:false. However, it's advisable to create a single method that triggers both methods and then call the second method upon receiving a response.

What steps can I take to give priority to a particular ajax call?

Answer №1

Answer №2

Answer №3

Answer №4

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