Получение общего URL-адреса для документа Google Диска с помощью Google Picker API

Я пытаюсь использовать API Google Drive Picker на своем сайте, чтобы пользователи могли выбрать документ Google Drive. У меня полностью работает окно выбора, и оно возвращает объект, содержащий все метаданные, относящиеся к выбранному документу. Однако мне нужна общая ссылка из документа, позволяющая другим пользователям, не являющимся пользователями Google, получить доступ к документу и просмотреть его. Ни один из возвращенных URL не отвечает моим требованиям. Должен ли я использовать другой API?

HTML:
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<script src="filepicker.js"></script>
<script>
function initPicker() {
var picker = new FilePicker({
apiKey: 'APIKEYHERE',
clientId: 'CLIENTIDHERE',
buttonEl: document.getElementById('pick'),
onSelect: function(file) {
console.log(file);
alert('Selected ' + file.title);
console.log("https://docs.google.com/document/d/" + file.id);
}
});
}
</script>

<script src="https://www.google.com/jsapi?key=APIKEYHERE"></script>
<script src="https://apis.google.com/js/client.js?onload=initPicker"></script>

Filepicker.js:

/**!
* Google Drive File Picker Example
* By Daniel Lo Nigro (http://dan.cx/)
*/
(function() {
/**
* Initialise a Google Driver file picker
*/
var FilePicker = window.FilePicker = function(options) {
// Config
this.apiKey = options.apiKey;
this.clientId = options.clientId;
// Elements
this.buttonEl = options.buttonEl;
// Events
this.onSelect = options.onSelect;
this.buttonEl.addEventListener('click', this.open.bind(this));
// Disable the button until the API loads, as it won't work properly until then.
this.buttonEl.disabled = true;
// Load the drive API
gapi.client.setApiKey(this.apiKey);
gapi.client.load('drive', 'v2', this._driveApiLoaded.bind(this));
google.load('picker', '1', { callback: this._pickerApiLoaded.bind(this) });
}
FilePicker.prototype = {
/**
* Open the file picker.
*/
open: function() {
// Check if the user has already authenticated
var token = gapi.auth.getToken();
if (token) {
this._showPicker();
} else {
// The user has not yet authenticated with Google
// We need to do the authentication before displaying the Drive picker.
this._doAuth(false, function() { this._showPicker(); }.bind(this));
}
},
/**
* Show the file picker once authentication has been done.
* @private
*/
_showPicker: function() {
var accessToken = gapi.auth.getToken().access_token;
this.picker = new google.picker.PickerBuilder().
addView(google.picker.ViewId.DOCUMENTS).
setAppId(this.clientId).
setOAuthToken(accessToken).
setCallback(this._pickerCallback.bind(this)).
build().
setVisible(true);
},
/**
* Called when a file has been selected in the Google Drive file picker.
* @private
*/
_pickerCallback: function(data) {
if (data[google.picker.Response.ACTION] == google.picker.Action.PICKED) {
var file = data[google.picker.Response.DOCUMENTS][0],
id = file[google.picker.Document.ID],
request = gapi.client.drive.files.get({
fileId: id
});
request.execute(this._fileGetCallback.bind(this));
}
},
/**
* Called when file details have been retrieved from Google Drive.
* @private
*/
_fileGetCallback: function(file) {
if (this.onSelect) {
this.onSelect(file);
}
},
/**
* Called when the Google Drive file picker API has finished loading.
* @private
*/
_pickerApiLoaded: function() {
this.buttonEl.disabled = false;
},
/**
* Called when the Google Drive API has finished loading.
* @private
*/
_driveApiLoaded: function() {
this._doAuth(true);
},
/**
* Authenticate with Google Drive via the Google JavaScript API.
* @private
*/
_doAuth: function(immediate, callback) {
gapi.auth.authorize({
client_id: this.clientId + '.apps.googleusercontent.com',
scope: 'https://www.googleapis.com/auth/drive.readonly',
immediate: immediate
}, callback);
}
};
}());