53 lines
1.4 KiB
Markdown
53 lines
1.4 KiB
Markdown
# Command Bus for ReactPHP
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* Can run monolithic (create a bus and use as is), or distributed (create bus and use clients), or a hybrid.
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* All commands called asynchronously using promises and deferreds.
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## Installing
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```shell
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$ composer require noccylabs/react-command-bus:^0.1.0
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```
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## Usage
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```php
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// This is enough to setup a local bus.
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$bus = new CommandBus();
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$bus->register('hello', function (Context $context) {
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return new Promise(function (callable $resolve) use ($context) {
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return $resolve([ 'message' => "Hello, {$context->name}" ]);
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});
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});
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// You can call it as expected
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$bus->execute('hello', [ 'name' => "Bob" ])
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->then(function (array $result) {
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echo "Result: {$result['message']}\n";
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});
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// Add a listener, and you can now connect to it!
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$bus->addServer($server);
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// So using this in another script works as expected, if you consider
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// the async flow. See the examples for working examples.
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$client = new CommandBusClient();
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$client->connect($socket);
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$client->execute('hello', [ 'name' => "Bob" ])
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->then(function (array $result) {
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echo "Result: {$result['message']}\n";
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});
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// The bus can also notify all clients about important events
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$bus->notify('updateCompleted', [ 'info' => [] ]);
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// Listening on the bus or client will yield the event
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$bus->on('notify', function (string $event, array $data) {});
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$client->on('notify', function (string $event, array $data) {});
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```
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