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Engineering

Phoenix PubSub Fan-Out Patterns: Topics Are a Contract

PubSub is free β€” until the fan-out is wrong and one broadcast wakes 10,000 LiveView sockets. Three topic naming rules that keep Prismatic's live dashboards responsive at scale.

Apr 09, 2026 Β· 6 min read Β· TomΓ‘Ε‘ Korcak (korczis)
pubsub phoenix liveview +2

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elixir 52 osint 21 architecture 20 compliance 11 due-diligence 11 security 11 phoenix 10 intelligence 10 otp 10 liveview 9 pipeline 8 performance 7 deployment 6 quality 6 czech 6 pubsub 6 nis2 6 ci-cd 6 api 6 evolution 6 umbrella 5 observability 5 doctrine 5 metrics 5