Engineering Blog

Engineering deep-dives from the SlashFeed team — Elixir, Phoenix, and how the product is built.

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A per-domain circuit breaker and rate limiter for feed fetching

How SlashFeed stops hammering a publisher that has started saying no — Hammer counters for the error rate, Postgres for the breaker state, a worker gate that cancels or snoozes jobs, a per-domain request budget, and an admin page to drive it all.

Oct 14, 2026

elixir oban hammer circuit-breaker rate-limiting

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