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docs/foundation/flow/queue/README.md
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docs/foundation/flow/queue/README.md
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# @suaveplan/queue - Enterprise-grade queue management: memory/priority/delayed queues, concurrent workers with retry and dead-letter, job state machines, OTel instrumentation
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## Summary
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Enterprise-grade queue management: memory/priority/delayed queues, concurrent workers with retry and dead-letter forwarding, job state machines, and OTel instrumentation.
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<!-- begin:auto-docs -->
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## Documentation tree
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- [errors](./src/errors/queue-error.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
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- [queue-error](./src/errors/queue-error.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
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- [job](./src/job/job.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
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- [job](./src/job/job.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
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- [delayed-queue](./src/queue/delayed-queue.md) — `DelayedQueue<T>` is an explicit alias for a delay-aware FIFO queue. It extends `MemoryQueue<T>` to make the delay inte…
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- [memory-queue](./src/queue/memory-queue.md) — `MemoryQueue<T>` is the foundational FIFO queue for `@suaveplan/queue`. It stores jobs in memory in insertion order and…
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- [priority-queue](./src/queue/priority-queue.md) — `PriorityQueue<T>` extends `MemoryQueue<T>` to provide priority-ordered job scheduling. Jobs with higher `priority` val…
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- [types](./src/types/queue-types.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
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- [queue-types](./src/types/queue-types.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
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- [worker](./src/worker/queue-worker.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
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- [queue-worker](./src/worker/queue-worker.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
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<!-- end:auto-docs --> - [queue-error](./src/errors/queue-error.md) — <!-- begin:auto-docs --> _(no submodules)_- [job](./src/job/job.md) — <!-- begin:auto-docs --> _(no submodules)_- [job](./src/job/job.md) — <!-- begin:auto-docs --> _(no submodules)_- [delayed-queue](./src/queue/delayed-queue.md) — `DelayedQueue<T>` is an explicit alias for a delay-aware FIFO queue. It extends `MemoryQueue<T>` to make the delay inte…
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- [memory-queue](./src/queue/memory-queue.md) — `MemoryQueue<T>` is the foundational FIFO queue for `@suaveplan/queue`. It stores jobs in memory in insertion order and…
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- [priority-queue](./src/queue/priority-queue.md) — `PriorityQueue<T>` extends `MemoryQueue<T>` to provide priority-ordered job scheduling. Jobs with higher `priority` val…
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- [types](./src/types/queue-types.md) — <!-- begin:auto-docs --> _(no submodules)_- [queue-types](./src/types/queue-types.md) — <!-- begin:auto-docs --> _(no submodules)_- [worker](./src/worker/queue-worker.md) — <!-- begin:auto-docs --> _(no submodules)_- [queue-worker](./src/worker/queue-worker.md) — <!-- begin:auto-docs --> _(no submodules)_- [queue-error](./src/errors/queue-error.md) — <!-- begin:auto-docs --> _(no submodules)_- [job](./src/job/job.md) — <!-- begin:auto-docs --> _(no submodules)_- [job](./src/job/job.md) — <!-- begin:auto-docs --> _(no submodules)_- [delayed-queue](./src/queue/delayed-queue.md) — `DelayedQueue<T>` is an explicit alias for a delay-aware FIFO queue. It extends `MemoryQueue<T>` to make the delay inte…
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- [memory-queue](./src/queue/memory-queue.md) — `MemoryQueue<T>` is the foundational FIFO queue for `@suaveplan/queue`. It stores jobs in memory in insertion order and…
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- [priority-queue](./src/queue/priority-queue.md) — `PriorityQueue<T>` extends `MemoryQueue<T>` to provide priority-ordered job scheduling. Jobs with higher `priority` val…
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- [types](./src/types/queue-types.md) — <!-- begin:auto-docs --> _(no submodules)_- [queue-types](./src/types/queue-types.md) — <!-- begin:auto-docs --> _(no submodules)_- [worker](./src/worker/queue-worker.md) — <!-- begin:auto-docs --> _(no submodules)_- [queue-worker](./src/worker/queue-worker.md) — <!-- begin:auto-docs --> _(no submodules)_- [queue-error](./src/errors/queue-error.md) — <!-- begin:auto-docs --> _(no submodules)_- [job](./src/job/job.md) — <!-- begin:auto-docs --> _(no submodules)_- [job](./src/job/job.md) — <!-- begin:auto-docs --> _(no submodules)_- [delayed-queue](./src/queue/delayed-queue.md) — `DelayedQueue<T>` is an explicit alias for a delay-aware FIFO queue. It extends `MemoryQueue<T>` to make the delay inte…
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- [memory-queue](./src/queue/memory-queue.md) — `MemoryQueue<T>` is the foundational FIFO queue for `@suaveplan/queue`. It stores jobs in memory in insertion order and…
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- [priority-queue](./src/queue/priority-queue.md) — `PriorityQueue<T>` extends `MemoryQueue<T>` to provide priority-ordered job scheduling. Jobs with higher `priority` val…
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- [types](./src/types/queue-types.md) — <!-- begin:auto-docs --> _(no submodules)_- [queue-types](./src/types/queue-types.md) — <!-- begin:auto-docs --> _(no submodules)_- [worker](./src/worker/queue-worker.md) — <!-- begin:auto-docs --> _(no submodules)_- [queue-worker](./src/worker/queue-worker.md) — <!-- begin:auto-docs --> _(no submodules)_- [queue-error](./src/errors/queue-error.md) — <!-- begin:auto-docs --> _(no submodules)_- [job](./src/job/job.md) — <!-- begin:auto-docs --> _(no submodules)_ - [job](./src/job/job.md) — <!-- begin:auto-docs --> _(no submodules)_- [delayed-queue](./src/queue/delayed-queue.md) — `DelayedQueue<T>` is an explicit alias for a delay-aware FIFO queue. It extends `MemoryQueue<T>` to make the delay inte…
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- [memory-queue](./src/queue/memory-queue.md) — `MemoryQueue<T>` is the foundational FIFO queue for `@suaveplan/queue`. It stores jobs in memory in insertion order and…
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- [priority-queue](./src/queue/priority-queue.md) — `PriorityQueue<T>` extends `MemoryQueue<T>` to provide priority-ordered job scheduling. Jobs with higher `priority` val…
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- [types](./src/types/queue-types.md) — <!-- begin:auto-docs --> _(no submodules)_ - [queue-types](./src/types/queue-types.md) — <!-- begin:auto-docs --> _(no submodules)_- [worker](./src/worker/queue-worker.md) — <!-- begin:auto-docs --> _(no submodules)_ - [queue-worker](./src/worker/queue-worker.md) — <!-- begin:auto-docs --> _(no submodules)_
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## Packages
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| Module | Description |
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|--------|-------------|
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| [errors/queue-error](src/errors/queue-error.md) | Error hierarchy with stable codes |
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| [job/job](src/job/job.md) | Job state machine |
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| [queue/memory-queue](src/queue/memory-queue.md) | FIFO in-memory queue |
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| [queue/priority-queue](src/queue/priority-queue.md) | Priority-ordered queue |
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| [queue/delayed-queue](src/queue/delayed-queue.md) | Delay-aware queue |
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| [worker/queue-worker](src/worker/queue-worker.md) | Concurrent job worker with retry |
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| [types/queue-types](src/types/queue-types.md) | Shared types and Zod schemas |
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## Quick Start
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```ts
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import { createMemoryQueue } from "@suaveplan/queue/queue/memory-queue";
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import { runWorker } from "@suaveplan/queue/worker/queue-worker";
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const queue = createMemoryQueue<{ userId: string }>();
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await queue.enqueue({ userId: "user_1" });
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await queue.enqueue({ userId: "user_2" });
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const stats = await runWorker(queue, async (job) => {
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console.log("Processing user:", job.payload.userId);
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}, {
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concurrency: 2,
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retryPolicy: { maxAttempts: 3, backoffMs: 1000, backoffMultiplier: 2 },
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});
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console.log(stats); // { processed: 2, succeeded: 2, failed: 0, dead: 0, retried: 0 }
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```
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