Using Google Apps script, how to check if an email has a pdf attached to it, then forward it to another email address? - pdf

Question

I managed to create a function that converts an email to a pdf and then it forwards it to another email address ( I used this great library made by Mike Greiling :https://github.com/pixelcog/gmail-to-pdf).
but now I want to create another function that checks if the email already has an attachment, and then forward it right away.
here's my working function:
function saveExpenses() {
GmailUtils.processStarred( 'label: test', 5, function(message) {
// create a pdf of the message
var pdf = GmailUtils.messageToPdf(message);
// prefix the pdf filename with a date string
pdf.setName(GmailUtils.formatDate(message, 'yyyy/MM/dd - ') + pdf.getName());
// send confirmation email to the original sender
var confirmationEmail = message.getFrom();
// Get the name of the document to use as an email subject line.
var subject = pdf.getName();
var body = "This is a confirmation that this receipt has been sent";
// Send a confirmation email to the sender
GmailApp.sendEmail(confirmationEmail, subject, body, {attachments: [pdf]});
return true;
});
}
}

Answer 1

Ok, I found the solution, actually it was pretty easy.
I guess I didn't think enough, so basically I just get all the attachments from the message with the function getAttachmentswhich returns an array of attachments, I then just check if the length of the array is greater than 0 ( which means there are attachments in the email )
and if the result is 0, it means there are no attachments.
Here is what I did :
var attachment = message.getAttachments();
if (attachment.length > 0 ) {
// I add the code to deal with the attachment
} else if (attachment.length == 0 ) {
// I add the code that I posted in the question above
}