Updated readme, examples

README.md

@@ -1,7 +1,14 @@
 # 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.
+* 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
 
@@ -12,41 +19,29 @@ $ composer require noccylabs/react-command-bus:^0.1.0
 ## Usage
 
 ```php
-// This is enough to setup a local bus.
-$bus = new CommandBus();
-$bus->register('hello', function (Context $context) {
+// The registry holds the callable commands
+$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) {
+    // You don't have to, but you should return a promise from your 
+    // commands.
     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
-$bus->execute('hello', [ 'name' => "Bob" ])
-    ->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 $data) {});
+// Create the bus
+$bus = new CommandBus($commands);
 
+// And execute some commands!
+$bus->execute('hello', ['name'=>'Bob'])->then(
+    function ($result) {
+        var_dump($result);
+    }
+);
 ```

examples/local.php

@@ -9,7 +9,12 @@ use React\EventLoop\Loop;
 use React\Promise\Promise;
 
 $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) {
+    // You don't have to, but you should return a promise from your 
+    // commands.
     return new Promise(function (callable $resolve) use ($context) {
         Loop::addTimer(1, function () use ($context, $resolve) {
             $resolve("Hello, {$context->name}");
@@ -17,17 +22,22 @@ $commands->register("hello", function (Context $context) {
     });
 });
 $commands->register("hello2", function (Context $context) {
+    // Just returning the value works just fine!
     return "Hello2, {$context->name}";
 });
 
+// Create the bus
 $bus = new CommandBus($commands);
 
-$bus->execute('hello', ['name'=>'Bob'])
-->then(function ($result) {
-    var_dump($result);
-});
+// And execute some commands!
+$bus->execute('hello', ['name'=>'Bob'])->then(
+    function ($result) {
+        var_dump($result);
+    }
+);
 
-$bus->execute('hello2', ['name'=>'Bob'])
-->then(function ($result) {
-    var_dump($result);
-});
+$bus->execute('hello2', ['name'=>'Bob'])->then(
+    function ($result) {
+        var_dump($result);
+    }
+);