How to sync google sheets database with google contacts - google-apps-script

Question

I have a google sheets database with contacts
here is an example of my database
I need to sync this contacts to my googlee contacts with a google apps script
If there is a new contact to upload it
If there is an existing contact that changed any of his data information to update it in google contacts
Any help on this pelease ?
--
Update:
so far I got this script working
function myFunction() {
// Sheet Variables Below
var ss = SpreadsheetApp.getActiveSpreadsheet()
var sheet = ss.getSheetByName('xx')
var headerRows = 1;
var MaxRow = sheet.getLastRow();
var dataRange = sheet.getDataRange();
var data = dataRange.getValues(); // Read all data
data.splice(0, headerRows); // Remove header rows
function addContact() {
for (var i = 0; i < data.length; i++) {
var row = data[i];
var firstName = row[1];
var lastName = row[2];
var email = row[3];
var phone = row[4];
var group = row[5];
var atiende = row[6];
var address1 = row[7];
var address2 = row[8];
var address3 = row[9]
var notes = row[10];
var customfields = row[11];
var status = row[12];
var contactid = row[13];
var contact = ContactsApp.createContact(firstName, lastName, email);
contact.addPhone(ContactsApp.Field.MOBILE_PHONE, phone);
contact.addAddress(ContactsApp.Field.HOME_ADDRESS, address1);
contact.setNotes(address2 + ' ' + address3)
contact.addCompany(atiende)
var group = ContactsApp.getContactGroup("System Group: My Contacts");
group.addContact(contact);
}
}
addContact();
}
I have changed the data structure to this
this works in order to upload all the contacts to google contacts
But I need now to check if the contact exist by phone number, and if exists update it, if there is no changes to skip it, other way im having duplicates in google contacts
I believe its important to mention than this is a database generated automatically, is not something that I change the data manually

Answer 1

You could update contacts when you add a new row to yr ss using the event object
warning: I'm an amateur tho enthusiastic gscripter so be careful using any advice I give
function newContact(e) {
var sht = e.source.getActiveSheet();
var row = e.range.getRow();
var drng = sht.getRange(row, 2, 1, 6).getValues();
// drng is a single row 2D array
// adjust indexes to suit
var first = drng[0][0];
var surname = drng[0][1];
var phone = drng[0][2];
var email = drng[0][3];
var consentDate = drng[0][5];
var grp = 'group-name';
//create contact
var contact = ContactsApp.createContact(first, surname, email);
var contactID = contact.getId();
//add info via bug workaround ie getting the new contact via contactID
contact = ContactsApp.getContactById(contactID);
contact.addPhone('mobile', phone);
//update contact
var group = ContactsApp.getContactGroup(grp);
contact = contact.addToGroup(group);
}