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James
James

Reputation: 43677

Set timeout for ajax (jQuery)

$.ajax({
    url: "test.html",
    error: function(){
        //do something
    },
    success: function(){
        //do something
    }
});

Sometimes success function works good, sometimes not.

How do I set timeout for this ajax request? In example, 3 seconds, if time is out, then show an error.

The problem is, ajax request freezes the block until finishes. If server is down for a little time, it will never end.

Upvotes: 226

Views: 553236

Answers (6)

Lovekush Vishwakarma
Lovekush Vishwakarma

Reputation: 3179

your request should be like below.

client.ajax({
               url:'web-url',
               method: 'GET',
               headers: 'header',
               timeout: 3000
          });

Upvotes: 2

Riaan Schutte
Riaan Schutte

Reputation: 535

Don't forget to check NginX settings also if your requests are going through NginX.

Ajax options.timeout is one thing but nginx request timeout might need adjusting also.

See https://ubiq.co/tech-blog/increase-request-timeout-nginx/

Upvotes: 1

Brandon J. Boone
Brandon J. Boone

Reputation: 16472

Here's some examples that demonstrate setting and detecting timeouts in jQuery's old and new paradigmes.

Live Demo

Promise with jQuery 1.8+

Promise.resolve(
  $.ajax({
    url: '/getData',
    timeout:3000 //3 second timeout
  })
).then(function(){
  //do something
}).catch(function(e) {
  if(e.statusText == 'timeout')
  {     
    alert('Native Promise: Failed from timeout'); 
    //do something. Try again perhaps?
  }
});

jQuery 1.8+

$.ajax({
    url: '/getData',
    timeout:3000 //3 second timeout
}).done(function(){
    //do something
}).fail(function(jqXHR, textStatus){
    if(textStatus === 'timeout')
    {     
        alert('Failed from timeout'); 
        //do something. Try again perhaps?
    }
});​

jQuery <= 1.7.2 

$.ajax({
    url: '/getData',
    error: function(jqXHR, textStatus){
        if(textStatus === 'timeout')
        {     
             alert('Failed from timeout');         
            //do something. Try again perhaps?
        }
    },
    success: function(){
        //do something
    },
    timeout:3000 //3 second timeout
});

Notice that the textStatus param (or jqXHR.statusText) will let you know what the error was. This may be useful if you want to know that the failure was caused by a timeout.

error(jqXHR, textStatus, errorThrown)

A function to be called if the request fails. The function receives three arguments: The jqXHR (in jQuery 1.4.x, XMLHttpRequest) object, a string describing the type of error that occurred and an optional exception object, if one occurred. Possible values for the second argument (besides null) are "timeout", "error", "abort", and "parsererror". When an HTTP error occurs, errorThrown receives the textual portion of the HTTP status, such as "Not Found" or "Internal Server Error." As of jQuery 1.5, the error setting can accept an array of functions. Each function will be called in turn. Note: This handler is not called for cross-domain script and JSONP requests.

src: http://api.jquery.com/jQuery.ajax/

Upvotes: 126

Rudolf M&#252;hlbauer
Rudolf M&#252;hlbauer

Reputation: 2531

use the full-featured .ajax jQuery function. compare with https://stackoverflow.com/a/3543713/1689451 for an example.

without testing, just merging your code with the referenced SO question:

target = $(this).attr('data-target');

$.ajax({
    url: $(this).attr('href'),
    type: "GET",
    timeout: 2000,
    success: function(response) { $(target).modal({
        show: true
    }); },
    error: function(x, t, m) {
        if(t==="timeout") {
            alert("got timeout");
        } else {
            alert(t);
        }
    }
});​

Upvotes: 2

Intelekshual
Intelekshual

Reputation: 7566

Please read the $.ajax documentation, this is a covered topic. 

$.ajax({
    url: "test.html",
    error: function(){
        // will fire when timeout is reached
    },
    success: function(){
        //do something
    },
    timeout: 3000 // sets timeout to 3 seconds
});

You can get see what type of error was thrown by accessing the textStatus parameter of the error: function(jqXHR, textStatus, errorThrown) option. The options are "timeout", "error", "abort", and "parsererror".

Upvotes: 392

Martin Jespersen
Martin Jespersen

Reputation: 26183

You could use the timeout setting in the ajax options like this:

$.ajax({
    url: "test.html",
    timeout: 3000,
    error: function(){
        //do something
    },
    success: function(){
        //do something
    }
});

Read all about the ajax options here: http://api.jquery.com/jQuery.ajax/

Remember that when a timeout occurs, the error handler is triggered and not the success handler :)

Upvotes: 28

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