Sample API Controller

sample_api_controller_1.rb

class ApiController < ActionController::Base
  attr_reader :current_user
  before_action :find_current_user
  
  protected
  
  def find_current_user
    @current_user = User.find_by(api_key: request.authorization)
    unless @current_user
      render json: { error: 'Cannot find user by API key' }, status: :unauthorized
    end
  end
end