# Asynchronous Handling and Scheduling

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

You added async processing, but now you can't tell which messages are stuck, which failed silently, and which will retry forever. Going async required touching every handler — adding queue configuration, serialization logic, and retry strategies individually.

## How Ecotone Solves It

Ecotone makes any handler async with a single `#[Asynchronous]` attribute. Retries, error handling, and dead letter are configured at the channel level And switch between synchronous and asynchronous execution without changing your business code.

***

{% content-ref url="asynchronous-handling/asynchronous-message-handlers" %}
[asynchronous-message-handlers](https://docs.ecotone.tech/modelling/asynchronous-handling/asynchronous-message-handlers)
{% endcontent-ref %}

{% content-ref url="asynchronous-handling/asynchronous-message-bus-gateways" %}
[asynchronous-message-bus-gateways](https://docs.ecotone.tech/modelling/asynchronous-handling/asynchronous-message-bus-gateways)
{% endcontent-ref %}

{% content-ref url="asynchronous-handling/scheduling" %}
[scheduling](https://docs.ecotone.tech/modelling/asynchronous-handling/scheduling)
{% endcontent-ref %}

{% content-ref url="asynchronous-handling/dynamic-message-channels" %}
[dynamic-message-channels](https://docs.ecotone.tech/modelling/asynchronous-handling/dynamic-message-channels)
{% endcontent-ref %}

## Materials

### Demo implementation

You may find demo implementation [here](https://github.com/ecotoneframework/quickstart-examples/tree/main/OutboxPattern).

### Links

* [Queues and Streaming Channels Architecture](https://blog.ecotone.tech/async-failure-recovery-queue-vs-streaming-channel-strategies/) \[Article]
* [Asynchronous processing with zero configuration](https://blog.ecotone.tech/message-channels-zero-configuration-async-processing/) \[Article]
* [Asynchronous PHP To Support Stability Of Your Application](https://blog.ecotone.tech/asynchronous-php/) \[Article]
* [Asynchronous Messaging in Laravel](https://blog.ecotone.tech/ddd-and-messaging-with-laravel-and-ecotone/) \[Article]
* [Testing Asynchronous Messaging](https://docs.ecotone.tech/modelling/testing-support/testing-asynchronous-messaging) \[Documentation]
* [Testing Asynchronous Message Driven Architecture](https://blog.ecotone.tech/testing-messaging-architecture-in-php/) \[Article]