How I Built a Redis-Compatible Pub/Sub System Using Golang

Over the last year, I’ve been building EchoVault, an embeddable Redis alternative for the Golang ecosystem. EchoVault aims to replicate most of the Redis features while providing both an embedded interface and a client-server interface that is compatible with existing Redis clients using the RESP protocol. One of the features implemented in EchoVault is the Pub/Sub feature. This article is a short walkthrough of how the Pub/Sub module has been implemented at the time of writing.