PATTERNS FOR BUILDING REALTIME FEATURES

Summary from the TLDR newsletter

Realtime features share changes triggered by one user to other users as the changes are happening. This typically means servers need to send data to a set of clients that don't know they are missing data. This post contains a collection of patterns for building realtime features that rely on a connection between the client and server, where the server can notify the client of some data. The connection can be anything that allows the server to send data to the client without the client knowing that there is new data.