Hubspot contact & web application contact sync

contacts

#1

Hi,
i have a web application where i have contacts. I also can create contact from that application. Now i have Hubspot CRM where i also have contacts. I want to synchronize the contact record in my web application, when a contact is created / updated in hubspot. And also when a contact is created / updated in my web application i want to synchronize the same in Hubspot. How can i achieve that?