Gmail App Scripts: Attachments based on Google Drive URL - google-apps-script

Question

I am using a mail merger script I found here, but I'm having trouble finding the right class to attach the file (rows 14 and 15).
function sendEmails() {
var sheet = SpreadsheetApp.getActiveSheet();
var startRow = 2; // First row of data to process
var numRows = 1; // Number of rows to process
// Fetch the range of cells A2:B2
var dataRange = sheet.getRange(startRow, 1, numRows, 1)
// Fetch values for each row in the Range.
var data = dataRange.getValues();
for (i in data) {
var row = data[i];
var emailAddress = row[3]; // First column
var message = row[10]; // Second column
var subject = row[6];
var attachment = Attachment.setUrl(row[11]);
MailApp.sendEmail(emailAddress, subject, message, {attachments: attachment});
}
}
I've tried a handful of variations for the attachment function, but I've gotten an error each time. The rows correspond to columns in a Google Sheet, and row[11] is the URL for an image in google drive.

Answer 1

here is a working example of your script : you had 2 errors :
the range definition had only one column
the argument of attachment should be an array of blobs
function sendEmails() {
var sheet = SpreadsheetApp.getActiveSheet();
var startRow = 2; // First row of data to process
var numRows = 1; // Number of rows to process
// Fetch the range of cells A2:B12 since you use row[11], the data must at least be 12 cells wide
var dataRange = sheet.getRange(startRow, 1, numRows, 12);
// Fetch values for each row in the Range.
var data = dataRange.getValues();
for (i in data) {
var row = data[i];
var emailAddress = row[3]; // Fourth column
var message = row[10]; // elevenths column
var subject = row[6];
var attachment = [UrlFetchApp.fetch(row[11]).getBlob()];
MailApp.sendEmail(emailAddress, subject, message, {attachments: attachment});
}
}
note also that url must be valid and that the file must be publicly shared : example :
https://drive.google.com/uc?export=view&id=0B3qSFd3iikE3TUFFLTc5MDE0MzkwLWQxYWItNDkwNy05ZjVkLWIyZDhiZDM4MjdmMg

Answer 2

Similar to Serge insas's answer, this is what I had to do in order to bypass the 401 error when using UrlFetchApp.fetch
var fileUrl = row[11] // Based on OP's case
var attachment = [
UrlFetchApp.fetch(fileUrl, {
headers: { Authorization: 'Bearer ' + ScriptApp.getOAuthToken() },
}).getBlob(),
]
MailApp.sendEmail(emailAddress, subject, message, {attachments: attachment});