Dropbox Chooser Require Shim

gistfile1.js

requirejs.config({
	paths: {
        "dropboxchooser": ["https://www.dropbox.com/static/api/2/dropins"]
    },
    //Remember: only use shim config for non-AMD scripts,
    //scripts that do not already call define(). The shim
    //config will not work correctly if used on AMD scripts,
    //in particular, the exports and init config will not
    //be triggered, and the deps config will be confusing
    //for those cases.
    shim: {
        'dropboxchooser': {
            deps: [],
			exports: "Dropbox",
            init: function () {
                window.Dropbox.appKey = "53yzxaltk7ilg1u";
				return window.Dropbox;
            }
        }
    }
});

require(["dropboxchooser"], function(Dropbox) {
var options = {

    // Required. Called when a user selects an item in the Chooser.
    success: function(files) {
        alert("Here's the file link: " + files[0].link)
    },

    // Optional. Called when the user closes the dialog without selecting a file
    // and does not include any parameters.
    cancel: function() {

    },

    // Optional. "preview" (default) is a preview link to the document for sharing,
    // "direct" is an expiring link to download the contents of the file. For more
    // information about link types, see Link types below.
    linkType: "preview", // or "direct"

    // Optional. A value of false (default) limits selection to a single file, while
    // true enables multiple file selection.
    multiselect: false, // or true

    // Optional. This is a list of file extensions. If specified, the user will
    // only be able to select files with these extensions. You may also specify
    // file types, such as "video" or "images" in the list. For more information,
    // see File types below. By default, all extensions are allowed.
    extensions: ['.pdf', '.doc', '.docx'],
};
var button = Dropbox.createChooseButton(options);
document.body.appendChild(button);
});