How to download file from picker without node.js?

Hi,

I am wondering about how to download file from Dropbox chooser without node.js.

 

This is my JS:

 

 

options = {
    success: function(files) {
        // Download
        var filenames = files.map(x => x.name);
        var fileids = files.map(x => x.id);
        $.post("/API/dropbox-download", {Path: "3D_objects", Filenames: filenames, Fileids: fileids}, function(response) {
            console.log(response);
        });
    },
    cancel: function() {

    },
    linkType: "preview",
    multiselect: false,
    extensions: ['.stl'],
    folderselect: false,
    sizeLimit: 128000000
};

function UploadFilesFromDropbox_upload1()
{
    Dropbox.choose(options);
}

 

 

This script works good, but it only gives me a link to file, but I can't download it from code because download button must be pressed. I saw in documentation, that is possible to download file by id by http, so i wrote this code id PHP:

 

 

    $curl = curl_init("https://content.dropboxapi.com/2/files/download");
    curl_setopt($curl, CURLOPT_POST, true);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_HTTPHEADER, array(
        'Authorization: Bearer <Access token>',
        'Dropbox-API-Arg: {"path": "id:<Id>"}',
        'Content-Type: text/plain'
    ));
    $response = curl_exec($curl);
    curl_close($curl);

    header("HTTP/1.1 200 OK");
    echo $response;

 

 

How can I get access token? There is Oauth for it, but Does I need to do Ouath before every chossing? I saw there is SDK on github, but it is installed through npm for node.js, is it possible to use SDK without node.js like google drive picker?