Parse Server Signup

Parse._linkWith.js

const authData = {
    "id": profile.getId(),
    "id_token": id_token
}
const options = {
    "authData": authData
}
const user = new Parse.User();
user._linkWith('google', options).then(function(user) {
    console.log('Successful user._linkWith(). returned user=' + JSON.stringify(user))
}, function(error) {
    console.log('Error linking/creating user: ' + error)
    alert('Error linking/creating user: ' + error)
    // TODO handle error
})