Get file from Google Drive based of Google Form info submission - google-apps-script

Question

I have created a Google Form containing two fields (First Name, Last Name)
I have PDF files in Google Drive/specific folder, PDF files named as "First Name"+"Last Name"
I want to get PDF file from my Google Drive based on form submission and get the URL to be sent by email.
I need the way to get PDF file based on form user submission.

Answer 1

I have written the below code which shall send the PDF as email attachment in place of the URL of PDF. I hope this code can help you. This code is a very basic code which can be further advanced as per your needs. Please let me know if you need any further help.
function pdfextractor() {
var ss = SpreadsheetApp.getActiveSpreadsheet(); // Get active spreadsheet.
var lastrow = ss.getLastRow();
var sheetName = ss.getRange("B" + lastrow).getValue() + " " + ss.getRange("C" + lastrow).getValue(); //considering format 'FirstName LastName' stored in column B & C of spreasheet generated by submission of google forms.
var pdfName = sheetName + ".pdf";
ss.getRange("D" + lastrow).setValue(pdfName);
var files = DriveApp.getFilesByName(pdfName);
var body = "This is a test email";
var subject = "PDF File "
var email = "admin#gmail.com"
while (files.hasNext()) {
var file = files.next();
}
GmailApp.sendEmail(email, subject, body, {
attachments: [file]
});
}
You can also change the email of each mail you want to send if stored with the sheet.

Answer 2

One way to do it is to create trigger that fires when the form is submitted. Based on this event, you can get the responses from the form submission, use them to search the file in Drive and send it attached to an email.
Here's an example that you can adapt to build what you need:
function onSubmit(e) {
// Get submitted responses
let itemResponses = e.response.getItemResponses();
// Get form answers (assume the form has three question in this order: First Name, Last Name, Email)
let firstName = itemResponses[0].getResponse();
let lastName = itemResponses[1].getResponse();
let email = itemResponses[2].getResponse();
// Get file (first file found with specified name)
let searchResult = DriveApp.searchFiles(`title contains \'${firstName+lastName}\'`);
let respondentFile = searchResult.next();
if (!respondentFile) throw 'File not found';
// Send email with respondent's file
MailApp.sendEmail(email, 'Your PDF File', 'Your PDF file is attached.', {
name: 'Automatic Emailer Script',
attachments: [respondentFile.getAs(MimeType.PDF)]
});
}