Develop Reference

Google Apps Script: trying to read a text file from Google Drive with .getAs(MimeType.PLAIN_TEXT)

I'm stuck into trouble trying to read an HTML file from a Google Drive. So
I tried :
to get a text with a help of UrlFetchApp.fetch("https://googledrive.com/host/{folderID}/{filename}.html"), but it fetches some google css file instead of mine.
to convert a file from blob to a text string with file.getAs(MimeType.PLAIN_TEXT), and it just outputs "Blob" without any file content. How can I extract a file text without any specific libraries?
var dApp = DriveApp;
var folderIter = dApp.getFoldersByName("Лаборатории ФББ");
var folder = folderIter.next();
var filesIter = dApp.getFilesByName("Labs.html");
var filelist = [];
var propfiledate = 0;
var propfilename;
while(filesIter.hasNext()){
var file = filesIter.next();
var filename = file.getName();
var fileurl = file.getUrl();
var filedate = file.getDateCreated();
if(filedate >= propfiledate){
var propfiledate = filedate;
var propfileurl = fileurl;
var propfilename = filename;
var propfile = file;
}
}
Logger.log(propfile);
// 1st try var myHtmlFile = UrlFetchApp.fetch(propfileurl);
// 2nd try var myHtmlFile = propfile.getAs(MimeType.PLAIN_TEXT);
// 3rd try var myHtmlFile = propfile.getBlob().text();
var ss = SpreadsheetApp.create("test");
SpreadsheetApp.setActiveSpreadsheet(ss);
var sheet = ss.getActiveSheet();
sheet.appendRow(myHtmlFile.toString().split("\n"));
Logger.log(propfiledate);
Logger.log(propfilename);
Logger.log(propfileurl);
}

Using Apps Script on a dummy HTML file, you can get the HTML data that is inside of it.
Using DriveApp getFilesByName(name) method you retrieve the file by the name.
This will return a FileIterator since there can be many files with similar names.
Then you can get the file blob with getBlob() and the blob data as a string with getDataAsString()
I have managed to get the dummyHTML.html file data by using this previously mentioned methods:
function myFunction() {
var files = DriveApp.getFilesByName("dummyHTML.html");
while (files.hasNext()) {
var file = files.next();
Logger.log(file.getBlob().getDataAsString());
}
}

Trying to get folder path of file in Google Apps Script

I am trying to create a function in Google Apps Script that finds the file path of the folder.
Here is the error: TypeError: Cannot read property 'appendParagraph' of null (line 20, file "Code")
function getRoot() {
var doc = DocumentApp.getActiveDocument();
var header = DocumentApp.getActiveDocument().getHeader();
var name = doc.getName();
var id = doc.getId();
var txt = "Master Folder";
var parents = [];
var folders = DriveApp.getFileById(id).getParents();
while (folders.hasNext()){
var parent = folders.next();
var n = parent.getName();
parents.push(n);
}
var pLen = parents.length;
for (i = 0; i < pLen; i++){
txt = txt + "//" + parents[i];
}
var headerPar = header.appendParagraph(txt);
}

I believe your goal as follows.
You want to know the reason of the error message of TypeError: Cannot read property 'appendParagraph' of null.
You want to remove the error.
You want to retrieve the folder path of the active Google Document.
For this, how about this answer?
Modification points:
In your script, I think that the reason of your error message is the header is not existing in the Google Document. By this, header retrieved by getHeader() is null, and then, the error occurs. So in this case, please add the header using addHeader().
doc of var doc = DocumentApp.getActiveDocument(); can be used for getHeader().
If you want to retrieve the folder path from the root folder, I think that your script is required to be modified. In your current script, when the Google Document is put in the nested folders, only parent of the Document is retrieved.
When your script is modified using above points, it becomes as follows.
Modified script:
function getRoot() {
var doc = DocumentApp.getActiveDocument();
var header = doc.getHeader() || doc.addHeader(); // Modified
var name = doc.getName();
var id = doc.getId();
var txt = "Master Folder";
var parents = [];
var folders = DriveApp.getFileById(id).getParents();
// --- I modified below script
while (folders.hasNext()) {
var folder = folders.next();
parents.push(folder.getName());
folders = folder.getParents();
}
parents = parents.reverse();
// ---
var pLen = parents.length;
for (i = 0; i < pLen; i++){
txt = txt + "//" + parents[i];
}
var headerPar = header.appendParagraph(txt);
}
By this modification, when the header is existing, doc.getHeader() is used. When the header is not existing, doc.addHeader() is used. And, when the active Document is put to the folder path like root -> folder1 -> folder2, Master Folder//MyDrive//folder1//folder2 is put to the header.
References:
getHeader()
addHeader()

Google Drive + Script throws permissions error even through I'm owner and granted permission

I'm trying to create a basic script on a 12-hour timer trigger that loops through each of my Google Calendars by their ICAL URL, and downloads the ICAL for a folder on my Google Drive (for backup purposes). It throws this error
"No item with the given ID could be found, or you do not have permission to access it. (line 23, file "Code")" (Line #23 is var folder... )
Running the script does download and save the ICAL file on the first run through the loop (and if I manually pass in each unique ICAL URL one at a time), but the error then terminates the loop. Seeing as how I've authorized access already and am the owner of everything here, I'm not sure what else I need.
var calendarsToSave = [
"https://calendar.google.com/calendar/ical/inXXXXXXX.com/privateXXXX/basic.ics",
"https://calendar.google.com/calendar/ical/XXXXX.com_XXXXXXup.calendar.google.com/private-XXXXXXX/basic.ics"
];
var folder = '123xxxxxxxxv789'; // my gdrive folder
function downloadFile(calendarURL,folder) {
var fileName = "";
var fileSize = 0;
for (var i = 0; i < calendarsToSave.length; i++) {
var calendarURL = calendarsToSave[i];
var response = UrlFetchApp.fetch(calendarURL, {muteHttpExceptions: true});
var rc = response.getResponseCode();
if (rc == 200) {
var fileBlob = response.getBlob()
var folder = DriveApp.getFolderById(folder); // << returns a permissions error thus terminating the for loop
var file = folder.createFile(fileBlob);
fileName = file.getName();
fileSize = file.getSize();
}
var fileInfo = { "rc":rc, "fileName":fileName, "fileSize":fileSize };
return fileInfo;
} // end for loop
}

Updated: You are also re-initializing a variable that already exists from the parameters and as a global variable so we can remove the parameter if you want to keep the global variable.
We can also move the place where you get the Google Folder object. It stays the same every time so we don't need to retrieve it again.
var calendarsToSave = [
"https://calendar.google.com/calendar/ical/inXXXXXXX.com/privateXXXX/basic.ics",
"https://calendar.google.com/calendar/ical/XXXXX.com_XXXXXXup.calendar.google.com/private-XXXXXXX/basic.ics"
];
var folder = '123xxxxxxxxv789'; // my gdrive folder
function downloadFile(calendarURL) {
var fileName = "";
var fileSize = 0;
var gfolder = DriveApp.getFolderById(folder);
for (var i = 0; i < calendarsToSave.length; i++) {
var calendarURL = calendarsToSave[i];
var response = UrlFetchApp.fetch(calendarURL, {muteHttpExceptions: true});
var rc = response.getResponseCode();
if (rc == 200) {
var fileBlob = response.getBlob()
var file = gfolder.createFile(fileBlob);
fileName = file.getName();
fileSize = file.getSize();
}
var fileInfo = { "rc":rc, "fileName":fileName, "fileSize":fileSize };
return fileInfo;
} // end for loop
}
Let see where that gets us.

Your "folder" variable is outside the function, causing the data to be inaccessible to the "downloadFile" function.
Google apps coding seems to require variables to be in a function to be defined. I would recommend moving both "calendarsToSave" and "folder" to the inside of "downloadFile"
Here is an example that will return your error:
var folder = '1HSFBPfPIsXWvFEb_AalFYalkPwrOAyxD';
function myFunction() {
var folder = DriveApp.getFolderById(folder);
var name = folder.getName();
Logger.log(name);
}
And here is one that will return the file name:
function myFunction() {
var folder = '1HSFBPfPIsXWvFEb_AalFYalkPwrOAyxD';
var folder = DriveApp.getFolderById(folder);
var name = folder.getName();
Logger.log(name);
}

Pass Google Sheet Data to Local Node.js Server via Google App Script

I went through this guide: https://developers.google.com/apps-script/guides/rest/quickstart/target-script to create a quick start target for Google Apps Script. At the end of this section I followed the Node.js tutorial to execute this script from a local node.js server: https://developers.google.com/apps-script/guides/rest/quickstart/nodejs
It all worked!
But, then I replaced the default code in Google Apps Script from this:
function getFoldersUnderRoot() {
var root = DriveApp.getRootFolder();
var folders = root.getFolders();
var folderSet = {};
while (folders.hasNext()) {
var folder = folders.next();
folderSet[folder.getId()] = folder.getName();
}
return folderSet;
}
to this:
function getPressInfo() {
var spreadsheet = SpreadsheetApp.openById("MY_SHEET_ID");
var sheets = spreadsheet.getSheets();
var activeSheet = null;
for (var i = 0; i < sheets.length; i++) {
var sheet = sheets[i];
var name = sheet.getName();
if (/published/i.test(name)) {
activeSheet = sheet;
break;
}
}
if (!sheet) {
return null;
}
var lastRow = sheet.getLastRow();
var lastCol = sheet.getLastColumn();
return sheet.getSheetValues(1, 1, lastRow, lastCol);
}
I updated my target version and renamed my function resource to getPressInfo in my node.js script. Now I get an authorization error... I can't tell if this is in reference to the Google Sheet (Set to Publicly Visible), the Google Apps Script (Set Access to Anyone), or something entirely different. Error reads:
The API returned an error: { [Error: ScriptError]
code: 401,
errors:
[ { message: 'ScriptError',
domain: 'global',
reason: 'unauthorized' } ] }
Anyone else run into this issue? I don't think it's the Google Apps Script, because when I roll back to the target with the default example it still works. If it helps I can recreate with dummy data.., but I suspect there's something simple in my code that is actually triggering the error.

Okay, I was totally over thinking the task to begin with. Google Sheets has a GET request for particular formats. I used tsv, but they also accept csv. This was my node.js script — no need for Google Apps Script whatsoever:
var https = require('https');
var path = require('path');
var fs = require('fs');
var format = 'tsv';
var id = 'ID_OF_GOOGLE_SHEET';
https.get('https://docs.google.com/spreadsheets/d/' + id + '/export?format=' + format + '&id=' + id, function(resp) {
var body = '';
resp
.on('data', function(data) {
body += ab2str(data);
})
.on('end', function() {
var json = [];
var rows = body.split(/\r\n/i);
for (var i = 0; i < rows.length; i++) {
json.push(rows[i].split(/\t/i));
}
fs.writeFileSync(path.resolve(__dirname, './sheet.json'), JSON.stringify(json));
console.log('Generated sheet.json');
});
});
function ab2str(buf) {
return String.fromCharCode.apply(null, new Uint16Array(buf));
}
Most notably this requires your Google Sheet to be publicly viewable.

How to Make a list on Google SpreadSheet of all files in a Google Drive folder

I have a Folder With more than 2000 Files.. And i Need to make a List of all these files on google spreadsheet.. I Found online some Scripts.. but they're not completely working.
When i hit "RUN" i just get a list of 250 Files.
Reading on Google Developers page i found some things about enabling Google Drive advanced services (and i did it)..
And i think i could solve this problem using something named "tokens"??
I don't know.. i'm not a programmer, and i barely know english..
i Tried editing this script making a fusion of what i found online.. But anything works.. i just get errors that i can't even understand..
So.. is there someone able to fix it?
function listFilesInFolder() {
var folder = DocsList.getFolder("Film");
var contents = folder.getFiles();
var file;
var data;
var sheet = SpreadsheetApp.getActiveSheet();
sheet.clear();
sheet.appendRow(["Nome", "Data", "Dimensione"]);
for (var i = 0; i < contents.length; i++) {
file = contents[i];
if (file.getFileType() == "SPREADSHEET") {
continue;
}
data = [
file.getName(),
file.getDateCreated(),
file.getSize(),
];
sheet.appendRow(data);
}
};

This Script works for at least 2200 Files :)
function listFilesInFolder(id) {
var folder = DriveApp.getFolderById('MyFolderID');
var contents = folder.getFiles();
var file;
var name;
var sheet = SpreadsheetApp.getActiveSheet();
var date;
var size;
sheet.clear();
sheet.appendRow(["Nome", "Data", "Dimensione"]);
while(contents.hasNext()) {
file = contents.next();
name = file.getName();
date = file.getDateCreated()
size = file.getSize()
data = [name, date, size]
sheet.appendRow(data);
}
};

The answer above appends a row in every iteration wich is particularly slow and there is a chance you will exceed the maximum execution time (see best practices)) so here is a version that uses an array to collect data and writes the array using a single setValues() .
The other issue is that it gets all the files in your drive, not in the folder you chose...
so below is a version that gets all files that are not Google documents, ie it counts only files that take space (images, pdf...) with a maximum of 4000 files.
full code below :
function listFilesInFolder() {
var folder = DocsList.getFolderById('0B3qSFd3iikE3MS0yMzU4YjQ4NC04NjQxLTQyYmEtYTExNC1lMWVhNTZiMjlhMmI');
var file;
var sheet = SpreadsheetApp.getActiveSheet();
sheet.clear();
var data = [];
data.push(["Name", "Data", "Size", "url"]);
var filesresult = folder.getFilesByTypeForPaging(DocsList.FileType.OTHER, 4000);
var files = filesresult.getFiles();
Logger.log(files.length);
for (var i in files) {
file = files[i];
data.push([
file.getName(),
file.getDateCreated(),
file.getSize(),
file.getUrl()
]);
}
sheet.getRange(1,1,data.length,data[0].length).setValues(data);
}

Paging is what you're looking for. When you have a large number of results (like 2000 files), you generally divide the request into 'pages', either to show the user page by page or in this case, to stay within the API limits.
The 'token' isn't a big deal.. it's just how your script remembers the page number while it's dealing with the current page.
So there's information about this here: https://developers.google.com/apps-script/reference/docs-list/files-result
The script at the top of the page is quite apt to your situation. Your script becomes something like...
function listFilesInFolder() {
var folder = DocsList.getFolder("Film");
//var contents = folder.getFiles();
var file;
//var data;
var sheet = SpreadsheetApp.getActiveSheet();
sheet.clear();
sheet.appendRow(["Nome", "Data", "Dimensione"]);
var pageSize = 200;
var files = null;
var token = null; // use a null token for the first lookup
do {
var result = DocsList.getAllFilesForPaging(pageSize, token);
files = result.getFiles();
token = result.getToken();
for (var i = 0; i < files.length; i++) {
//Logger.log(files[i].getName());
file = files[i];
if (file.getFileType() == "SPREADSHEET") {
continue;
}
data = [
file.getName(),
file.getDateCreated(),
file.getSize(),
];
sheet.appendRow(data);
}
} while (files.length >= pageSize);
};
I'm not promising this will work.. but I'm sure you can sort it out. Basically the "while loop" on that page replaces the "for loop" from your script. The loop on that page just calls Logger.log(), so you swap that with the sheet.appendRow(data)

I've taken the script suggested by Jonathan Livingston and made some edits.
Now it:
can take a name of a sheet with future report. It can make a new sheet if it doesn't exist,
gives more parameters, including list of editors (e-mails)
Here's the code:
function TESTlistFilesInFolder() {
listFilesInFolder("0B0pifCWzjn-ib0ZWT2x1ekNOWAY", "Files Report");
// ^^^^^^^^ folder ID ^^^^^^^^^ ^sheet Name^
}
// original script: http://stackoverflow.com/a/25730522/5372400
function listFilesInFolder(id, sheetName) {
sheetName = sheetName || id;
var sheet = createSheetIfNotExists(sheetName);
var folder = DriveApp.getFolderById(id);
var contents = folder.getFiles();
sheet.clear();
sheet.appendRow(["Name", "CreatedDate", "Last Updated", "Id", "Url", "Editors", "Viewers", "Owner", "Access", "Permission", "Size"]);
var data = [];
var file;
var info = [];
while(contents.hasNext()) {
data = [];
file = contents.next();
data.push(file.getName());
data.push(file.getDateCreated());
data.push(file.getLastUpdated());
data.push(file.getId());
data.push(file.getUrl());
// convert to string: http://www.w3schools.com/jsref/jsref_join.asp
data.push(getEmails(file.getEditors()).join());
data.push(getEmails(file.getViewers()).join());
data.push(getEmails(file.getOwner()).join());
data.push(file.getSharingAccess());
data.push(file.getSharingPermission());
data.push(file.getSize());
info.push(data);
}
var rows = info.length;
var cols = info[0].length;
var range = sheet.getRange(2,1,rows,cols);
range.setValues(info);
};
function createSheetIfNotExists(name) {
var ss = SpreadsheetApp.getActiveSpreadsheet();
try {ss.setActiveSheet(ss.getSheetByName(name));}
catch (e) {ss.insertSheet(name);}
var sheet = ss.getSheetByName(name);
return sheet;
}
// users: https://developers.google.com/apps-script/reference/base/user
function getEmails(users) {
var emails = [];
var user;
https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray
if (!Array.isArray(users)) { users = [users]; }
for (var i = 0; i < users.length; i++) {
user = users[i];
emails.push(user.getEmail());
}
return emails;
}