get first_name and last_name fields from facebook omniauth

Question

I am now implementing omniauth feature into my app. Everything works fine except that i cant get the first and last name from the facebook. Here is my model code.

Answer 1

Ran into this issue while designing the OAuth flow for an app that was using Devise + omniauth-facebook.

Using the public_profile scope, you get back a name attribute on the auth hash. request.env["omniauth.auth"]

My issue is that a user has one profile and it is autosaved ( user is required to enter a first name and last name at sign up which is validated on the profile model)

Solution: Create a name parsing method in your omniauth services model, which you can pass the request.env["omniauth.auth"]["info"]["name"] as an argument.

# auth hash returns a name like "John Doe Smith"
def parse_name_from_string(ful_name_string) 
  
   name_array = name_string.split(" ")  # break apart the name

   # I chose to return a PORO so i can do something like parsed_user_name_from_facebook_auth.first_name
   {
     last_name: name_array.pop,
     first_name: name_array.join(" ")
   }
end