# Tutorial

## Get started with Ecotone

The best way to get started with **Ecotone** is to actually build something realistic.\
Therefore we will build a small back-end for Shopping System during this tutorial.\
The techniques we will learn in the tutorial are **fundamental to building any application using Ecotone**.

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Found something to improve in the docs?\
Create Pull Request in [Documentation repository](https://github.com/ecotoneframework/documentation).
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## Lessons

The tutorial is divided into several lessons:

* [Lesson 1](https://docs.ecotone.tech/tutorial-php-ddd-cqrs-event-sourcing/php-messaging-architecture), we will learn **the fundamentals** of **Ecotone**: Endpoints, Messages, Channels, and Command Query Responsibility Segregation (**CQRS**)
* [Lesson 2](https://docs.ecotone.tech/tutorial-php-ddd-cqrs-event-sourcing/php-domain-driven-design), we will learn **Tactical Domain Driven Design (DDD)**: Aggregates, Repositories and also Event Handlers
* [Lesson 3](https://docs.ecotone.tech/tutorial-php-ddd-cqrs-event-sourcing/php-serialization-deserialization), we will learn **how to use Converters,** therefore how to handle serialization and deserialization
* [Lesson 4](https://docs.ecotone.tech/tutorial-php-ddd-cqrs-event-sourcing/php-metadata-method-invocation), we will learn about **Metadata and Method Invocation** - How we can execute Message Handlers in a way not available in any other PHP Framework
* [Lesson 5](https://docs.ecotone.tech/tutorial-php-ddd-cqrs-event-sourcing/php-interceptors-middlewares), we will learn about **Interceptors**, Ecotone's powerful Middlewares
* [Lesson 6](https://docs.ecotone.tech/tutorial-php-ddd-cqrs-event-sourcing/php-asynchronous-processing), we we will learn about **Asynchronous** Endpoints, so how to process our Messages asynchronously.

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You don’t have to complete all of the lessons at once to get the value out of this tutorial.\
**You will start benefit from the tutorial even if it’s one or two lessons.**
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