I created custom registration process in WordPress with a lot of extra fields like first name, last name etc.
I would like to make integration with Facebook/LinkedIn so first name, last name, email, fields are be prefilled with Facebook/LinkedIn, but still, users will need to enter other fields to finish registration.
Is it possible to do something like that, or is there some plugin which is doing that?
I’d recommend Auth0 plugin https://wordpress.org/plugins/auth0/
oAuth plugins should auto populate the data that your API call allows. And your users should be able to edit their profiles also.
LinkedIn also has an AutoFill function here: https://docs.microsoft.com/en-us/linkedin/consumer/integrations/self-serve/plugins/autofill-plugin