Uploading Multiple Files to Google Drive with Google App Script
Solution 1:
I know this question is old, but after finding it and related ones, I was never able to get the multiple file upload working. So after a lot of banging my head against walls, I wanted to post a full example (.html and .gs) in case anyone in the future is looking for one to get started. This is working when I deploy it right now and will hopefully work for other people out there. Note that I just hardcoded the folder in the drive to use in the code.gs file, but that can be easily changed.
form.html:
<body>
<div id="formcontainer">
<label for="myForm">Facilities Project Database Attachment Uploader:</label>
<br><br>
<form id="myForm">
<label for="myForm">Project Details:</label>
<div>
<input type="text" name="zone" placeholder="Zone:">
</div>
<div>
<input type="text" name="building" placeholder="Building(s):">
</div>
<div>
<input type="text" name="propertyAddress" placeholder="Property Address:">
</div>
<div>
<label for="fileText">Project Description:</label>
<TEXTAREA name="projectDescription"
placeholder="Describe your attachment(s) here:"
style ="width:400px; height:200px;"
></TEXTAREA>
</div>
<br>
<label for="attachType">Choose Attachment Type:</label>
<br>
<select name="attachType">
<option value="Pictures Only">Picture(s)</option>
<option value="Proposals Only">Proposal(s)</option>
<option value="Pictures & Proposals">All</option>
</select>
<br>
<label for="myFile">Upload Attachment(s):</label>
<br>
<input type="file" name="filename" id="myFile" multiple>
<input type="button" value="Submit" onclick="iteratorFileUpload()">
</form>
</div>
<div id="output"></div>
<div id="progressbar">
<div class="progress-label"></div>
</div>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.css">
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script>
<script>
var numUploads = {};
numUploads.done = 0;
numUploads.total = 0;
// Upload the files into a folder in drive
// This is set to send them all to one folder (specificed in the .gs file)
function iteratorFileUpload() {
var allFiles = document.getElementById('myFile').files;
if (allFiles.length == 0) {
alert('No file selected!');
} else {
//Show Progress Bar
numUploads.total = allFiles.length;
$('#progressbar').progressbar({
value : false
});//.append("<div class='caption'>37%</div>");
$(".progress-label").html('Preparing files for upload');
// Send each file at a time
for (var i = 0; i < allFiles.length; i++) {
console.log(i);
sendFileToDrive(allFiles[i]);
}
}
}
function sendFileToDrive(file) {
var reader = new FileReader();
reader.onload = function (e) {
var content = reader.result;
console.log('Sending ' + file.name);
var currFolder = 'Something';
google.script.run.withSuccessHandler(updateProgressbar).uploadFileToDrive(content, file.name, currFolder);
}
reader.readAsDataURL(file);
}
function updateProgressbar( idUpdate ){
console.log('Received: ' + idUpdate);
numUploads.done++;
var porc = Math.ceil((numUploads.done / numUploads.total)*100);
$("#progressbar").progressbar({value: porc });
$(".progress-label").text(numUploads.done +'/'+ numUploads.total);
if( numUploads.done == numUploads.total ){
//uploadsFinished();
numUploads.done = 0;
};
}
</script>
<script>
function fileUploaded(status) {
document.getElementById('myForm').style.display = 'none';
document.getElementById('output').innerHTML = status;
}
</script>
<style>
body {
max-width: 400px;
padding: 20px;
margin: auto;
}
input {
display: inline-block;
width: 100%;
padding: 5px 0px 5px 5px;
margin-bottom: 10px;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
select {
margin: 5px 0px 15px 0px;
}
input[type="submit"] {
width: auto !important;
display: block !important;
}
input[type="file"] {
padding: 5px 0px 15px 0px !important;
}
#progressbar{
width: 100%;
text-align: center;
overflow: hidden;
position: relative;
vertical-align: middle;
}
.progress-label {
float: left;
margin-top: 5px;
font-weight: bold;
text-shadow: 1px 1px 0 #fff;
width: 100%;
height: 100%;
position: absolute;
vertical-align: middle;
}
</style>
</body>
code.gs:
function doGet() {
return HtmlService.createHtmlOutputFromFile('form')
.setSandboxMode(HtmlService.SandboxMode.IFRAME);
}
function uploadFileToDrive(base64Data, fileName) {
try{
var splitBase = base64Data.split(','),
type = splitBase[0].split(';')[0].replace('data:','');
var byteCharacters = Utilities.base64Decode(splitBase[1]);
var ss = Utilities.newBlob(byteCharacters, type);
ss.setName(fileName);
var dropbox = "Something"; // Folder Name
var folder, folders = DriveApp.getFoldersByName(dropbox);
if (folders.hasNext()) {
folder = folders.next();
} else {
folder = DriveApp.createFolder(dropbox);
}
var file = folder.createFile(ss);
return file.getName();
}catch(e){
return 'Error: ' + e.toString();
}
}
Solution 2:
Updated For May 2017
I updated and improved barragan's answer.
Advantages:
- Allows users to create a subfolder name to contain all the files uploaded during this session
- Ensures that these subfolders all exist within one specified folder within your Google Drive
- The page/form is mobile-responsive
You can start with this example just to create the script and get to know the basics.
Then you can completely replace form.html with this:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>
Send Files
</title>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script>
<script>
$(document).ready(function () {
function afterSubfolderCreated(subfolderId) {
console.log(subfolderId);
console.log(allFiles);
numUploads.total = allFiles.length;
$('#progressbar').progressbar({
value: false
});
$(".progress-label").html('Preparing files for upload');
for (var i = 0; i < allFiles.length; i++) {
console.log(i);
sendFileToDrive(allFiles[i], subfolderId);
}
}
function sendFileToDrive(file, subfolderId) {
var reader = new FileReader();
reader.onload = function (e) {
var content = reader.result;
console.log('Sending ' + file.name);
google.script.run.withSuccessHandler(updateProgressbar).uploadFileToDrive(content, file.name, subfolderId);
}
reader.readAsDataURL(file);
}
function updateProgressbar(idUpdate) {
console.log('Received: ' + idUpdate);
numUploads.done++;
var porc = Math.ceil((numUploads.done / numUploads.total) * 100);
$("#progressbar").progressbar({value: porc});
$(".progress-label").text(numUploads.done + '/' + numUploads.total);
if (numUploads.done == numUploads.total) {
numUploads.done = 0;
$(".progress-label").text($(".progress-label").text() + ': FINISHED!');
$("#progressbar").after('(Optional) Refresh this page if you remembered other screenshots you want to add.');//<a href="javascript:window.top.location.href=window.top.location.href"> does not work
}
}
function fileUploaded(status) {
document.getElementById('myForm').style.display = 'none';
document.getElementById('output').innerHTML = status;
}
var numUploads = {};
numUploads.done = 0;
numUploads.total = 0;
var allFiles;
var frm = $('#myForm');
frm.submit(function () {
allFiles = document.getElementById('myFile').files;
if (!frm.checkValidity || frm.checkValidity()) {
if (allFiles.length == 0) {
alert('Error: Please choose at least 1 file to upload.');
return false;
} else {
frm.hide();
var subfolderName = document.getElementById('myName').value;
$.ajax({
url: '',//URL of webhook endpoint for sending a Slack notification
data: {
title: subfolderName + ' is uploading screenshots',
message: ''
}
});
google.script.run.withSuccessHandler(afterSubfolderCreated).createSubfolder(subfolderName);
return false;
}
} else {
alert('Invalid form');
return false;
}
});
});//end docReady
</script>
<link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.css">
<style>
body {
padding: 20px;
margin: auto;
font-size: 20px;
}
label{
font-weight: bold;
}
input{
font-size: 20px;
padding: 5px;
display: inline-block;
margin-bottom: 10px;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
.hint{
font-size: 90%;
color: #666;
}
select {
margin: 5px 0px 15px 0px;
}
input[type="file"] {
padding: 5px 0px 15px 0px;
}
#progressbar{
width: 100%;
text-align: center;
overflow: hidden;
position: relative;
vertical-align: middle;
}
.progress-label {
float: left;
margin-top: 5px;
font-weight: bold;
text-shadow: 1px 1px 0 #fff;
width: 100%;
height: 100%;
position: absolute;
vertical-align: middle;
}
li{
padding: 10px;
}
@media only screen and (max-width : 520px) {
#logo {
max-width: 100%;
}
}
</style>
</head>
<body>
<p>
<img src="" id="logo">
</p>
<p>This webpage allows you to send me screenshots of your dating profiles.</p>
<ol>
<li>
In each of your dating apps, take a screenshot <a href="https://www.take-a-screenshot.org/" target="_blank">(how?)</a> of every part of every page of your profile.
</li>
<li>
Do the same for each of your photos (at full resolution).
</li>
<li>
In the form below, type your first name and last initial (without any spaces or special characters), such as SallyT.
</li>
<li>
Then click the first button and select all of your screenshot images (all at once).
</li>
<li>
Finally, press the last button to send them all to me!
</li>
</ol>
<form id="myForm">
<div>
<label for="myName">Your first name and last initial:</label>
</div>
<div>
<input type="text" name="myName" id="myName" placeholder="SallyT" required pattern="[a-zA-Z]+" value="">
</div>
<div>
<span class="hint">(No spaces or special characters allowed because this will determine your folder name)</span>
</div>
<div style="margin-top: 20px;">
<label for="myFile">Screenshot image files:</label>
<input type="file" name="filename" id="myFile" multiple>
</div>
<div style="margin-top: 20px;">
<input type="submit" value="Send File(s) ➔" >
</div>
</form>
<div id="output"></div>
<div id="progressbar">
<div class="progress-label"></div>
</div>
</body>
</html>
And completely replace server.gs with this:
function doGet() {
var output = HtmlService.createHtmlOutputFromFile('form');
output.addMetaTag('viewport', 'width=device-width, initial-scale=1');// See http://stackoverflow.com/a/42681526/470749
return output.setSandboxMode(HtmlService.SandboxMode.IFRAME);
}
function uploadFileToDrive(base64Data, fileName, subfolderId) {
Logger.log(subfolderId);
try{
var splitBase = base64Data.split(','),
type = splitBase[0].split(';')[0].replace('data:','');
var byteCharacters = Utilities.base64Decode(splitBase[1]);
var ss = Utilities.newBlob(byteCharacters, type);
ss.setName(fileName);
var subfolder = DriveApp.getFolderById(subfolderId);
var file = subfolder.createFile(ss);
Logger.log(file);
return file.getName() + ' at ' + file.getUrl();
} catch(e){
return 'createFile Error: ' + e.toString();
}
}
function createSubfolder(subfolderName){
var dropbox = subfolderName + Utilities.formatDate(new Date(), "US/Eastern", "_yyyy-MM-dd");
Logger.log(dropbox);
var parentFolderId = "{ID such as 0B9iQ20nrMNYAaHZxRjd}";
var parentFolder = DriveApp.getFolderById(parentFolderId);
var folder;
try {
folder = parentFolder.getFoldersByName(dropbox).next();
}
catch(e) {
folder = parentFolder.createFolder(dropbox);
}
Logger.log(folder);
return folder.getId();
}