Dealing with Lengthy Requests: Effective Strategies

Question

Dealing with Lengthy Requests: Effective Strategies

My ajax request sometimes takes a while to return a response.

  $.ajax({
    type: 'POST',
    url: 'some_url',
    data: data,
    processData: false,
    contentType: false,
    headers: {
      "Authorization": 'Token token="'+some_token+'"'
    }
  }).then(function(){
    do_something();
  });

Typically, if the request takes a few minutes, it works fine. However, if it exceeds around 10 minutes, I encounter the following error:

jquery.js:9175 POST 'some_url' net::ERR_EMPTY_RESPONSE

Even though the server continues to process my request and eventually sends back a Completed 201 Created ... response once finished, since the error occurs, there seems to be no listener for it at that point.

I would like to inform the user that the process has been completed.

Does anyone have suggestions for the best approach to handle this situation?

Your help would be highly appreciated.

javascript ajax browser notifications timeout

Answer 1

Answer №1

When working with Ajax, I find it beneficial to use promises for handling asynchronous operations. Here's a simple example:

function send_ajax(url, data, some_token) {
    var ajax = $.ajax({
        type : 'POST',
        url : url,
        data : data,
        processData : false,
        contentType : false,
        headers : {
            "Authorization" : 'Token token="' + some_token + '"'
        }
    })

    return ajax.promise();
}


send_ajax("url","data","some_token").done(function(result) {
    console.log(result);
    do_something();
});

The promise allows the function inside of done to execute once the result is returned. It's worth noting that waiting 10 minutes for a response can be quite long.

edit: not the solution It has been pointed out that the original Ajax call remains within its own context, meaning the then() method should handle the returned call. The approach I initially suggested may not be applicable to the original problem at hand. For future reference, handling asynchronous tasks in a separate function with a returned value can help overcome such hurdles.

Answer 2

When working with Ajax, I find it beneficial to use promises for handling asynchronous operations. Here's a simple example:

function send_ajax(url, data, some_token) {
    var ajax = $.ajax({
        type : 'POST',
        url : url,
        data : data,
        processData : false,
        contentType : false,
        headers : {
            "Authorization" : 'Token token="' + some_token + '"'
        }
    })

    return ajax.promise();
}


send_ajax("url","data","some_token").done(function(result) {
    console.log(result);
    do_something();
});

The promise allows the function inside of done to execute once the result is returned. It's worth noting that waiting 10 minutes for a response can be quite long.

edit: not the solution It has been pointed out that the original Ajax call remains within its own context, meaning the then() method should handle the returned call. The approach I initially suggested may not be applicable to the original problem at hand. For future reference, handling asynchronous tasks in a separate function with a returned value can help overcome such hurdles.

Dealing with Lengthy Requests: Effective Strategies

Answer №1

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