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https://github.com/lezhnev74/prooph-direct-router

Router for proophessor (getprooph.org) library to implicitly route command to handler
https://github.com/lezhnev74/prooph-direct-router

prooph router

Last synced: 20 days ago
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Router for proophessor (getprooph.org) library to implicitly route command to handler

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# Implicit routing a command to it's handler
A command is routed to the handler with the same name and "Handler" appended under the same namespace:
```php
namespace Some\Space;

// your command
class Command {}

// your command handler
class CommandHandler {
function __invoke(Command $cmd) {...}
}
```

## Benefits

By using conventions (implicit routing) you can easily add commands\queries without constant updating configuration files. Just put both files in the same folder and follow the name convention:
- Handler class must be name exactly as a Command + `Handler` appended at the end
- Both command and a handler must reside under the same namespace

Just a handy tool :)

## Installation

```
composer require lezhnev74/prooph-direct-router
```

## Configuration

In case you use config files in your project, visit your `prooph.php` config file and update the "service_bus.command_bus.router.type" field.
If you set up message bus manually, then scroll down to the "Usage" section.

```php
//...
'service_bus' => [
'command_bus' => [
'router' => [
'routes' => [
// list of commands with corresponding command handler
],
'type' => \DirectRouter\DirectRouter::class
],
],
//…
```

## Usage
This package uses dependency-container to locate the handler for a given command,
so you need to install some container package (which supports [ContainerInterface](http://www.php-fig.org/psr/psr-11/))

```php
//
// Manual message bus setup
// 1. Prepare router
$router = new DirectRouter();
$router->attachToMessageBus($commandBus);
// 2. Add service locator (to instantiate the handler). $container is your implementation of PSR-11 ContainerInterface
$locator = new ServiceLocatorPlugin($container);
$locator->attachToMessageBus($bus);

//
// Dispatch command
//
$command = new \Some\Space\Command(...);
$commandBus->dispatch($command);
```