Recent email of the thread - Gmail - google-apps-script

Question

Can anyone help me with a query that I can use to extract data from my Gmail?
Here are the requirements,
Date range, so I can select a specific date
Subject of the email
Date of the email
Body of recent email of the thread
Sender of the recent email of the thread
Receiver of the recent email of the thread
var ui = SpreadsheetApp.getUi();
function onOpen(e) {
ui.createMenu("Gmail Manager").addItem("Get Emails", "getEmails").addToUi();
}
function getEmails() {
const threads = GmailApp.getInboxThreads();
for (let i = 0; i < threads.length; i++) {
const msgs = threads[i].getMessages();
const lastmsg = msgs[msgs.length - 1];
var firstmessage = thread.getMessages()[0];
var recentmessagesender = firstmessage.getFrom();
var recentMessageSubject = thread.getFirstMessageSubject();
}
}

Answer 1

If you want to retrieve the recent message of each thread, you can try this:
Code
function getEmails() {
let threads = GmailApp.getInboxThreads();
for (let i=0; i< threads.length; i++) {
let thread = threads[0];
let messages = thread.getMessages();
let recentMessage = messages[0];
let recentMessageSender = recentMessage.getFrom();
let recentMessageReceiver = recentMessage.getTo();
let recentMessageSubject = recentMessage.getSubject();
let recentMessageDate = recentMessage.getDate();
let recentMessageBody = recentMessage.getPlainBody();
}
}
Explanation
The above snippet gathers all the threads and then for each thread it retrieves the first message, this being denoted by the messages[0]. Afterwards, the sender, received, subject, date and body are retrieved using the specific methods for the GmailMessage object.
However, depending on what exactly you plan on doing with the information obtained, you can either use :
console.log in order to display it to the logger
OR if you want to write it to the spreadsheet, you will have to
use the SpreadsheetApp service, something similar to this:
// add this outside the `for` loop
let activeSheet = SpreadsheetApp.getActiveSheet();
// add this inside the `for` loop
activeSheet.getRange(i+1,1).setValue(recentMessageSender);
activeSheet.getRange(i+1,2).setValue(recentMessageReceiver);
When writing to the spreadsheet, you will have to take into account the range you want to paste the date onto. In the above example, the first row will correspond to the first message of the first thread, the second row will correspond to the first message of the second thread and so on.
Reference
Apps Script GmailMessage Class;
Apps Script Sheet Class - getRange();
Apps Script Range Class - setValue().