# File lib/chef_zero/endpoints/organization_users_endpoint.rb, line 9
      def post(request)
        orgname = request.rest_path[1]
        json = FFI_Yajl::Parser.parse(request.body, :create_additions => false)
        username = json['username']

        if exists_data?(request, [ 'organizations', orgname, 'users', username ])
          raise RestErrorResponse.new(409, "User #{username} is already in organization #{orgname}")
        end

        users = get_data(request, [ 'organizations', orgname, 'groups', 'users' ])
        users = FFI_Yajl::Parser.parse(users, :create_additions => false)

        create_data(request, request.rest_path, username, '{}')

        # /organizations/ORG/association_requests/USERNAME-ORG
        begin
          delete_data(request, [ 'organizations', orgname, 'association_requests', username], :data_store_exceptions)
        rescue DataStore::DataNotFoundError
        end

        # Add the user to the users group if it isn't already there
        if !users['users'] || !users['users'].include?(username)
          users['users'] ||= []
          users['users'] |= [ username ]
          set_data(request, [ 'organizations', orgname, 'groups', 'users' ], FFI_Yajl::Encoder.encode(users, :pretty => true))
        end
        json_response(201, { "uri" => build_uri(request.base_uri, request.rest_path + [ username ]) })
      end