RSMQ (Redis Simple Message Queue)

RSMQ is a lightweight FIFO message queue for Node.js that requires only a Redis server (no dedicated queue server). Version 0.12.4 (stable) runs on Node >=6 and Redis >=2.6 (due to Lua scripts). It guarantees message delivery to exactly one consumer within a configurable visibility timeout. The core library is ~500 lines of JavaScript and ships TypeScript type definitions. Optional promise-based API via *Async method suffixes. Key differentiator vs Bull or Kue: no dependencies beyond Redis, minimal API surface, and very high throughput (10k+ messages/sec). Releases are infrequent; maintained by smrchy.