rails s api

gistfile1.txt

1. update:

    api:
      put :update do
        authenticate!

        if current_user.update_attributes params[:user]
          current_user
        else
          error!({ error: current_user.errors.full_messages }, 422)
        end
      end
      
     postman:
      X-USER-ACCESS-TOKEN       FMsqf6AG5ZnxqBbuqnqT
      user[first_name]          ben