Extjs 4 downloading a file through ajax call

Question

The problem is very simple: i have to download a file when i submit a form, it\'s an ajax call when the form is submitted which lets me build a file with the data taken from

Answer 1

The following code used to download the file using extjs 5 or 6. Add the following code to method and invoke this for button action. This downloads the file directly insteadof opening in new tab.

use an iframe like this:

/**
 * prints the file
 */
printReport: function () {
    var url = 'downloadURL';
    Ext.Ajax.request({
        url: url,
        method: 'GET',
        autoAbort: false,
        success: function(result) {
            if(result.status == 204) {
                Ext.Msg.alert('Empty Report', 'There is no data');
            } else if(result.status == 200) {
                Ext.DomHelper.append(Ext.getBody(), {
                    tag:          'iframe',
                    frameBorder:  0,
                    width:        0,
                    height:       0,
                    css:          'display:none;visibility:hidden;height:0px;',
                    src:          url
                });
            }
        },
        failure: function() {
            //failure here will automatically
            //log the user out as it should
        }
    });
}

Copied the answer from extjs forum

Option:2 If you want to open the file in new tab

    /**
 * open file in tab
 */
openReport: function () {
    var url = 'downloadURL';
    Ext.Ajax.request({
        url: url,
        method: 'GET',
        autoAbort: false,
        success: function(result) {
            if(result.status == 204) {
                Ext.Msg.alert('Empty Report', 'There is no data');
            } else if(result.status == 200) {
                var win = window.open('', '_blank');
                win.location = url;
                win.focus();
            }
        },
        failure: function() {
            //failure here will automatically
            //log the user out as it should
        }
    });
}