# Resiliency

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Works with: **Laravel**, **Symfony**, and **Standalone PHP**
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## The Problem

A failed HTTP call crashes your handler. A duplicate webhook triggers double-processing. You've wrapped handlers in try/catch blocks and retry loops — each one slightly different. Error handling is scattered across your codebase with no consistent strategy.

## How Ecotone Solves It

Ecotone handles failures at the **messaging layer** — not per feature. Automatic retries, error channels, dead letter queues, the outbox pattern, and idempotency are configured once and apply to all handlers on a channel. When something fails, messages are preserved and can be replayed after the bug is fixed.

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Explore the resiliency features:

* [Retries](/modelling/recovering-tracing-and-monitoring/resiliency/retries.md) — Automatic retry strategies for transient failures
* [Error Channel and Dead Letter](/modelling/recovering-tracing-and-monitoring/resiliency/error-channel-and-dead-letter.md) — Store failed messages for later replay
* [Final Failure Strategy](/modelling/recovering-tracing-and-monitoring/resiliency/final-failure-strategy.md) — What happens when all retries are exhausted
* [Idempotency (Deduplication)](/modelling/recovering-tracing-and-monitoring/resiliency/idempotent-consumer-deduplication.md) — Prevent double-processing
* [Resilient Sending](/modelling/recovering-tracing-and-monitoring/resiliency/resilient-sending.md) — Guaranteed delivery to async channels
* [Outbox Pattern](/modelling/recovering-tracing-and-monitoring/resiliency/outbox-pattern.md) — Atomic message publishing with database transactions
* [Concurrency Handling](/modelling/recovering-tracing-and-monitoring/resiliency/concurrency-handling.md) — Optimistic and pessimistic locking


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