Redis Pub/Sub under the hood

Do you want to code a chat app? Here you’ll see how to do it the hard way. I show how Redis Pub/Sub works in detail, all the way down to the bits and bytes! This is the first part of a series of deep dives into Redis. At Pusher, instead of treating our system as a stack of black boxes, we like to get our hands dirty and poke around. Today we’ll roll up our sleeves and dismantle the drivetrain of Pusher’s pub/sub system: Redis. Redis is best known as a key-value server. Clients open a TCP connect...

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