Patent attributes
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for selective distribution of messages from a scalable, real-time messaging system. An example method includes: receiving query instructions from a subscriber client, wherein the subscriber client is subscribed to a channel of a plurality of channels; receiving a plurality of messages from a plurality of publisher clients, wherein each message is associated with a particular one of the plurality of channels; applying the query instructions to the plurality of messages for the channel as the messages are received; and sending the messages resulting from the application of the query instructions to the subscriber client, wherein the messages received by the subscriber client from the channel are limited to those that satisfy the query instructions.
