# This is example how to rescue from exception ActionDispatch::Http::MimeNegotiation::InvalidType
# and show nice JSON error in your API
module API
  class BaseController < ActionController::API
    def process_action(*args)
      super
    rescue ActionDispatch::Http::MimeNegotiation::InvalidType => exception
      # set valid Content-Type to be able to call render method below
      request.headers['Content-Type'] = 'application/json'
      render status: 400, json: { errors: [exception.message] }
    end
  end
end