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How to work with asynchronous process from external client?

By : awitherspoon
Date : September 15 2020, 12:00 PM
Any of those help Can you use some server push technology? If it were just a couple of seconds, I'd say go for waiting in the rest controller.
Being 15 seconds and thinking about scalability, I'd say to follow some kind of asynchronous pattern with the client to.
code :

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Asynchronous client javascript process to talk to server

By : user3021434
Date : March 29 2020, 07:55 AM
Hope that helps I'm considering developing a web app with offline capability. I'm considering formatting all client form postbacks as JSON objects, and writing these direct to HTML5 LocalStorage on a form postback. I'll then have a separate process that asynchronously polls the LocalStorage for JSON entries and submits these to the server. This server-sync process will not have any UI context. The actual user UI can then be very responsive. (I'll use cache manifest files to deal with other offline issues). , In the end I just used a simple setInterval, as follows:
code :
setInterval("SyncLocalStorageToServer()", 4000); // Loop at 4 second intervals

RESTful client - how to process an external link?

By : Decolyne Dlamini
Date : March 29 2020, 07:55 AM
hop of those help?
Normally we don't want to share all of that information with anybody, so we cannot export all of that just the current page we are in.
code :
POST www.myapi.com/users/1234/orders
    ...order information...
    "shipping_address": "www.myapi.com/users/1234/shippingaddresses/default"
GET www.myapi.com/users/1234/shippingaddresses

Asynchronous Process doesn't seem to work on my prod environment

By : Sumanta Kundu
Date : March 29 2020, 07:55 AM
it helps some times Okay, after struggling since two days, I found that the distant server might be responsible of this, it seems that if I don't wait for the process answer, that process is killed instantly. I don't know why, I don't know how, but it seems like it is.
So I started searching for an alternative solution that was not using Process. And I found something. I can use the php exec() method to launch an asynchronous call by doing so :
code :
exec('php '.$kernelRootDir.'/console my:super:command > /dev/null &');
//Apparently, using "&" launch the command asynchronously. 

Process external HTTP request with CFTHREAD and return asynchronous response

By : K.Jaspers
Date : March 29 2020, 07:55 AM
wish of those help Sounds like you just need a callback supplied by the caller.
accept request, including an external url for your code to hit once complete start thread, do not join return info to caller that request is being processed, ending the primary request thread keeps running and at end hit the callback url, supplying any additional info about success or failure

How to create a asynchronous waitbar in MATLAB for a parallel external process?

By : user3425958
Date : March 29 2020, 07:55 AM
Any of those help It's not a great UX choice to have a percentage-based progress bar which may "complete" long before your process does, or never complete because your process finishes sooner. See this question on UX.stackexchange which discusses the alternatives. In short, a spinner is more conventional.
You can create a custom load spinner fairly easily. This uses an undocumented but simple method to display an animated gif within a figure without having to use code to advance the frames (which would not work for an asynchronous task!).
code :
function hFig = loadspinner()    
    % Main path for installed MATLAB images (and other files)
    fp = fullfile(matlabroot,'toolbox','matlab');
    % Path to the image we want, there are other options in this folder...
    fp = fullfile(fp, 'sourcecontrol\release\images\spinner.gif');

    % Create the figure    
    hFig = figure('Color', 'w', 'NumberTitle', 'Off', ...
                  'Resize', 'Off', 'Menubar', 'None');
    % Get image size to reduce hard-coding in case we change image
    sz = size( imread( fp ) );
    % Insert the animated gif into a HTML pane to enable the animation
    je = javax.swing.JEditorPane('text/html', ['<html><img src="file:/', fp, '"/></html>']);
    [~, hc] =  javacomponent(je,[],hFig);
    % resize figure and image
    hFig.Position(3:4) = [220,sz(2)+35];
    set(hc, 'pos', [(220-sz(1))/2-2,6,sz(1)+4,sz(2)+4])
    % Add text
   annotation( hFig, 'textbox', [0,0.9,1,0], ...
                'String', 'Loading, please wait...', ...  
                'LineStyle','none', ...
                'margin', 0, ...
                'verticalalignment', 'top', ...
                'horizontalalignment', 'center' );
f = loadspinner();
output = system('foo.cmd')
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