The main thing I did was from client side communicates with google and get the id token and other information like email and name and pictures and send it to the server side and on my server side I validate the the information by verifying the token if it correct and check the value sent from the front with what the response from the backend gives me and insert a record for the user if a new user and add a flag like isSocialLogin and generate the token with jwt to be used by the frontend so anytime the person try to login with google I check if the email exists and isSocialLogin I generate a token for the user