Update Google Contacts with Google Apps Script

This Google Apps Script project will allow your existing contacts to update their Google Contacts entries using a simple online form. The HTML form is published using Apps Script’s HtmlService.

function go() {    
  
  var emailNAME     = ScriptProperties.getProperty("NAME");
  var googleGROUP   = ContactsApp.getContactGroup(
                          ScriptProperties.getProperty("GROUP"));
  
  if (googleGROUP) {
    
    var emailSUBJECT  = "Your contact information";    
    var myContacts = googleGROUP.getContacts();
    
    for (i=0; i<myContacts.length; i++) {
      
      var email = myContacts[i].getPrimaryEmail();
      var ID = myContacts[i].getId();
      ID = ID.substr(ID.lastIndexOf("/") + 1);
      
      var emailBody = "Hi,<br /><br />" +
        "Would you please take a moment and update your contact information in my address book. <br /><br />" + 
          "Please <a href='" + ScriptApp.getService().getUrl() + "?" + 
            Utilities.base64Encode(ID + "#" + email) + "'>click here</a> and fill-in the required details." +
              "Your information will be directly added to my Google Contacts." +
                "<br /><br />Thanks,<br />" + emailNAME;
      
      var emailTEXT = "Hi,\n\n" + 
        "Would you please take a moment and update your contact information in my address book. \n\n" + 
          ScriptApp.getService().getUrl() + "?" + Utilities.base64Encode(ID + "#" + email) +
            "\n\nJust click the URL, fill-in the form and your details will be directly added to my Google Contacts." + 
              "\n\nThanks,\n" + emailNAME;
      
      GmailApp.sendEmail(email, emailSUBJECT, emailTEXT, 
                         {htmlBody:emailBody, name:emailNAME});
    }
  }   
}

function doGet() {
  var html = HtmlService.createTemplateFromFile("form").evaluate();
  html.setTitle("Google Contacts - Digital Inspiration")
  return html;  
}

function labnolGetContact(q) {    
  
  var contact = {};  
  contact.FOUND = 0;
  
  try {
    
    var id = Utilities.base64Decode(q);  
    var email = "";
    
    for(var i = 0; i<id.length; i++) {    
      email += String.fromCharCode(id[i]);
    }   
    
    var contactID = email.substr(0, email.indexOf("#"));
    email = email.substr(email.indexOf("#")+1);
            
    var c = ContactsApp.getContact(email);    
    
    if (c) {
      
      var originalID = c.getId();
      originalID = originalID.substr(originalID.lastIndexOf("/") + 1);
      
      if (contactID != originalID)
        return contact;
      
      contact.FOUND = 1;
      
      if (c.getFullName().length)
        contact.FULL_NAME = c.getFullName();
      
      if(c.getEmails(ContactsApp.Field.HOME_EMAIL).length)
        contact.HOME_EMAIL = c.getEmails(ContactsApp.Field.HOME_EMAIL)[0].getAddress();
      
      if(c.getAddresses(ContactsApp.Field.HOME_ADDRESS).length) {
        contact.HOME_ADDRESS = c.getAddresses(ContactsApp.Field.HOME_ADDRESS)[0].getAddress();
        contact.HOME_ADDRESS = contact.HOME_ADDRESS.replace(/\n/g, ", ");
      }

      if(c.getPhones(ContactsApp.Field.MOBILE_PHONE).length)
        contact.MOBILE_PHONE = c.getPhones(ContactsApp.Field.MOBILE_PHONE)[0].getPhoneNumber();
      
      if(c.getIMs(ContactsApp.Field.SKYPE).length)
        contact.SKYPE = c.getIMs(ContactsApp.Field.SKYPE)[0].getAddress();

      if(c.getUrls(ContactsApp.Field.BLOG).length)
        contact.BLOG = c.getUrls(ContactsApp.Field.BLOG)[0].getAddress();
      
      if(c.getDates(ContactsApp.Field.BIRTHDAY).length) {

          var months = 
              [ 0, ContactsApp.Month.JANUARY, ContactsApp.Month.FEBRUARY, ContactsApp.Month.MARCH,
               ContactsApp.Month.APRIL, ContactsApp.Month.MAY, ContactsApp.Month.JUNE,
               ContactsApp.Month.JULY, ContactsApp.Month.AUGUST, ContactsApp.Month.SEPTEMBER,
               ContactsApp.Month.OCTOBER, ContactsApp.Month.NOVEMBER, ContactsApp.Month.DECEMBER
              ];

        contact.BIRTHDAY = months.indexOf(c.getDates(ContactsApp.Field.BIRTHDAY)[0].getMonth().toString()) +
          "/" + c.getDates(ContactsApp.Field.BIRTHDAY)[0].getDay() +
          "/" + c.getDates(ContactsApp.Field.BIRTHDAY)[0].getYear();
      }      
    }    
    
    return contact;
  
  } catch (e) {
  
    return contact;    
  
  }  
  
}