/lib/api/session.rb

 1module API
 2  class Session < Grape::API
 3    desc 'Login to get token' do
 4      success Entities::UserLogin
 5    end
 6    params do
 7      optional :login, type: String, desc: 'The username'
 8      optional :email, type: String, desc: 'The email of the user'
 9      requires :password, type: String, desc: 'The password of the user'
10      at_least_one_of :login, :email
11    end
12    post "/session" do
13      user = Gitlab::Auth.find_with_user_password(params[:email] || params[:login], params[:password])
14
15      return unauthorized! unless user
16      return render_api_error!('401 Unauthorized. You have 2FA enabled. Please use a personal access token to access the API', 401) if user.two_factor_enabled?
17      present user, with: Entities::UserLogin
18    end
19  end
20end