Updated readme, examples
This commit is contained in:
parent
befe5f5d59
commit
f849ac481a
61
README.md
61
README.md
@ -1,7 +1,14 @@
|
|||||||
# Command Bus for ReactPHP
|
# Command Bus for ReactPHP
|
||||||
|
|
||||||
* Can run monolithic (create a bus and use as is), or distributed (create bus and use clients), or a hybrid.
|
## Features
|
||||||
|
|
||||||
|
* Can run monolithic (create a bus and use as is), or distributed (create bus and use clients), or in a hybrid setup. The CommandBus functions identical with or without clients.
|
||||||
* All commands called asynchronously using promises and deferreds.
|
* All commands called asynchronously using promises and deferreds.
|
||||||
|
* Push notifications from the bus to subscribers and listeners, such as progress or log/error messages. (WIP)
|
||||||
|
|
||||||
|
### Potential caveats
|
||||||
|
|
||||||
|
* There is no security, nor encryption. This is intended to work between a daemon and a frontend, and is designed primarily considering all activity taking place on localhost. You can use ReactPHPs `SecureConnector` and `SecureServer` to encrypt the traffic, but this still allows anyone to connect and interact with the bus. If this sounds like something that should be changed, open a ticket.
|
||||||
|
|
||||||
## Installing
|
## Installing
|
||||||
|
|
||||||
@ -12,41 +19,29 @@ $ composer require noccylabs/react-command-bus:^0.1.0
|
|||||||
## Usage
|
## Usage
|
||||||
|
|
||||||
```php
|
```php
|
||||||
// This is enough to setup a local bus.
|
// The registry holds the callable commands
|
||||||
$bus = new CommandBus();
|
$commands = new CommandRegistry();
|
||||||
$bus->register('hello', function (Context $context) {
|
|
||||||
|
// Register some function to call. The name here is "hello", and it will
|
||||||
|
// receive a Context holding the call context. Any passed data will be
|
||||||
|
// available as properties on the Context object.
|
||||||
|
$commands->register("hello", function (Context $context) {
|
||||||
|
// You don't have to, but you should return a promise from your
|
||||||
|
// commands.
|
||||||
return new Promise(function (callable $resolve) use ($context) {
|
return new Promise(function (callable $resolve) use ($context) {
|
||||||
return $resolve([ 'message' => "Hello, {$context->name}" ]);
|
Loop::addTimer(1, function () use ($context, $resolve) {
|
||||||
|
$resolve("Hello, {$context->name}");
|
||||||
|
});
|
||||||
});
|
});
|
||||||
});
|
});
|
||||||
|
|
||||||
// You can call it as expected
|
// Create the bus
|
||||||
$bus->execute('hello', [ 'name' => "Bob" ])
|
$bus = new CommandBus($commands);
|
||||||
->then(function (array $result) {
|
|
||||||
echo "Result: {$result['message']}\n";
|
|
||||||
});
|
|
||||||
|
|
||||||
// Add a listener, and you can now connect to it!
|
|
||||||
$bus->addServer($server);
|
|
||||||
|
|
||||||
|
|
||||||
// So using this in another script works as expected, if you consider
|
|
||||||
// the async flow. See the examples for working examples.
|
|
||||||
|
|
||||||
$client = new CommandBusClient();
|
|
||||||
$client->connect($socket);
|
|
||||||
|
|
||||||
$client->execute('hello', [ 'name' => "Bob" ])
|
|
||||||
->then(function (array $result) {
|
|
||||||
echo "Result: {$result['message']}\n";
|
|
||||||
});
|
|
||||||
|
|
||||||
|
|
||||||
// The bus can also notify all clients about important events
|
|
||||||
$bus->notify('updateCompleted', [ 'info' => [] ]);
|
|
||||||
|
|
||||||
// Listening on the bus or client will yield the event
|
|
||||||
$bus->on('notify', function (string $event, array $data) {});
|
|
||||||
$client->on('notify', function (string $event, array $data) {});
|
|
||||||
|
|
||||||
|
// And execute some commands!
|
||||||
|
$bus->execute('hello', ['name'=>'Bob'])->then(
|
||||||
|
function ($result) {
|
||||||
|
var_dump($result);
|
||||||
|
}
|
||||||
|
);
|
||||||
```
|
```
|
||||||
|
@ -9,7 +9,12 @@ use React\EventLoop\Loop;
|
|||||||
use React\Promise\Promise;
|
use React\Promise\Promise;
|
||||||
|
|
||||||
$commands = new CommandRegistry();
|
$commands = new CommandRegistry();
|
||||||
|
// Register some function to call. The name here is "hello", and it will
|
||||||
|
// receive a Context holding the call context. Any passed data will be
|
||||||
|
// available as properties on the Context object.
|
||||||
$commands->register("hello", function (Context $context) {
|
$commands->register("hello", function (Context $context) {
|
||||||
|
// You don't have to, but you should return a promise from your
|
||||||
|
// commands.
|
||||||
return new Promise(function (callable $resolve) use ($context) {
|
return new Promise(function (callable $resolve) use ($context) {
|
||||||
Loop::addTimer(1, function () use ($context, $resolve) {
|
Loop::addTimer(1, function () use ($context, $resolve) {
|
||||||
$resolve("Hello, {$context->name}");
|
$resolve("Hello, {$context->name}");
|
||||||
@ -17,17 +22,22 @@ $commands->register("hello", function (Context $context) {
|
|||||||
});
|
});
|
||||||
});
|
});
|
||||||
$commands->register("hello2", function (Context $context) {
|
$commands->register("hello2", function (Context $context) {
|
||||||
|
// Just returning the value works just fine!
|
||||||
return "Hello2, {$context->name}";
|
return "Hello2, {$context->name}";
|
||||||
});
|
});
|
||||||
|
|
||||||
|
// Create the bus
|
||||||
$bus = new CommandBus($commands);
|
$bus = new CommandBus($commands);
|
||||||
|
|
||||||
$bus->execute('hello', ['name'=>'Bob'])
|
// And execute some commands!
|
||||||
->then(function ($result) {
|
$bus->execute('hello', ['name'=>'Bob'])->then(
|
||||||
|
function ($result) {
|
||||||
var_dump($result);
|
var_dump($result);
|
||||||
});
|
}
|
||||||
|
);
|
||||||
|
|
||||||
$bus->execute('hello2', ['name'=>'Bob'])
|
$bus->execute('hello2', ['name'=>'Bob'])->then(
|
||||||
->then(function ($result) {
|
function ($result) {
|
||||||
var_dump($result);
|
var_dump($result);
|
||||||
});
|
}
|
||||||
|
);
|
||||||
|
Loading…
Reference in New Issue
Block a user