Libraries tagged by exactly-once

Safe request retries for Laravel APIs via the Idempotency-Key header.

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Enable WordPress actions and filter callbacks to be called exactly once.

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Transactional outbox for Laravel: stage messages inside your database transaction and relay them reliably with retries and backoff.

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Stripe-style Idempotency-Key middleware for Laravel APIs with response replay and concurrent locks

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Stripe-style Idempotency-Key middleware for Laravel APIs with response replay and concurrent locks

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A SQL-backed (MySQL/Postgres) queue implementation for kinetis/queue's QueueInterface — SELECT ... FOR UPDATE SKIP LOCKED for exactly-once delivery, an optional visibility timeout for a crashed worker's reserved job.

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Meters Cbox ID identity usage to a billing service — reads the shared auth.* vocabulary off the transactional outbox and reports it exactly once. Optional: install it only where you actually bill.

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The travelling salesman problem asks the following question: "Given a list of cities and the distances between each pair of cities, what is the shortest possible route that visits each city exactly once and returns to the origin city

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A Filament plugin that solves the single-record resource pattern — resources that display exactly one record per authenticated user (e.g. 'My Profile', 'My Wallet', 'My Settings') without an index page, and their arbitrarily nested child resources.

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With this extension you can execute exactly one defined shell command as long as only one editor is logged into backend

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