Auto send Email from Sheets Using Google Scrip - google-apps-script

Question

I am trying to automate an email system where whenever someone submits a form, therefore editing the spreadsheet, google-scripts will send me an email containing the message. The code works perfectly fine and does what I want. However, I need to manually run the script every time which defeats the purpose. I have tried to do the function onEdit(e) however it never worked. I have also tried the triggers feature of AppsScript with no luck.
/**
* Sends emails with data from the current spreadsheet.
*/
function sendEmails() {
var sheet = SpreadsheetApp.getActiveSheet();
var startRow = sheet.getLastRow();
var numRows = sheet.getLastRow();
// Fetch the range of cells
var dataRange = sheet.getRange(startRow, 1, numRows, sheet.getLastColumn());
// Fetch values for each row in the Range.
var data = dataRange.getValues();
var emailAddress = 'email#email.com'; // First column
var message = data[0][3]; // Fourth column;
var subject = 'A Subject';//this will always be the same
Logger.log(emailAddress, subject, message); //This is to test because of the limit of how many emails you can send a day.
MailApp.sendEmail(emailAddress, subject, message);
}
Here is a link to a google sheet that you can test and edit the script on: https://docs.google.com/spreadsheets/d/1bBNDc33fBx2JPcRByt-8TA2vrLqa51H72TIM-SeARsc/edit?usp=sharing
The sheets is not using google forms, it is getting it's data from the results of an HTML webpage I built that is used as a form.

Answer 1

This is possible by using Installable Triggers.
Follow these steps once you created the form inside your sheets:
For New Editor
Open your Apps Script project.
At the left, click Triggers alarm.
At the bottom right, click Add Trigger.
Select and configure the type of trigger you want to create.
Click Save.
For Legacy Editor
From the script editor, choose Edit > Current project's triggers.
Click the link that says: No triggers set up. Click here to add one now.
Under Run, select the name of function you want to trigger.
Under Events, select either Time-driven or the Google App that the script is bound to (for example, From spreadsheet).
Select and configure the type of trigger you want to create (for example, an > > - Hour timer that runs Every hour or an On open trigger).
Optionally, click Notifications to configure how and when you are contacted by email if your triggered function fails.
Click Save.
For this scenario, Select event source: From spreadsheet and Select event type: On form submit.
Once the setup for Installable trigger is done, you can now add an event object e to the function parameter to access the form values submitted by the user.
Try this in your code:
function onSubmitForm(e){
var message = e.namedValues["Message"]; //get the message value using question name
var emailAddress = 'xxxxxsampleemailxxxxxx';
var subject = 'A Subject';
MailApp.sendEmail(emailAddress, subject, message); //send email
}
Example:
Output:
References:
Installable Triggers
Event Object