How To Use Google App Scripts To Retrieve Gmail Emails In A Customised Way?

Here's a neat javascript code I wrote to get all emails from my Gmail and put the list of sender name in a google spreadsheet. function doGet() { var myspreadsheet = SpreadsheetA

Solution 1:

Looks like about 10secs /100 messages this way. Can't think of anything faster in GAS.

function getMail(){
    var inc = 100;
    var start = 0;
    do  {
        var now = new Date();
      var thread = GmailApp.getInboxThreads(start, inc);

      start += inc;
      var messages = GmailApp.getMessagesForThreads(thread);
      Logger.log("# threads"+thread.length+"# of messages" + messages.length+" time :"+(new Date()-now));

      }  while (thread.length == inc);
  }