JavaScript get file from server

Question

I have a following server endpoint that expects X-DOWNLOAD:yes request header parameter:

GET/POST example.com/download

If X-DOWNLOAD:yes is present server returns file to client. If no - redirects user to another page.

How to make a JavaScript call from client in order to get a file(set X-DOWNLOAD:yes parameter) - show browser Save dialog ?

this may be what your after stackoverflow.com/questions/24501358/… — Neo
– Neo, Commented Nov 28, 2016 at 16:08

Community · Accepted Answer · 2017-05-23 12:02:11Z

3

To add headers to the request do something like this:

$.ajax({
    type: 'POST',
    url: url,
    headers: {
        "X-Download":"yes",
    }
    //OR
    //beforeSend: function(xhr) { 
    //  xhr.setRequestHeader("X-Download, "yes"); 
    //}
}).done(function(data) { 
    alert(data);
});

For download take a look at Download a file by jQuery.Ajax

edited May 23, 2017 at 12:02

CommunityBot

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answered Nov 28, 2016 at 16:10

Nir Levy

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4 Comments

alexanoid Over a year ago

Is it a right way to do file download or I should reimplement my server side?

Adam Azad Over a year ago

@JuanMendes, jQuery is tagged. I believe it's fine

Ruan Mendes Over a year ago

@adam Ha, I guess the mobile site doesn't show tags

Nir Levy Over a year ago

@alexanoid regarding the download itself. It depends on the how the server is sending the file. Take a look at the reference question stackoverflow.com/questions/4545311/…

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