A PHP 5.3-compatible fork of Guzzle Commands.
Sadly, 60% of all PHP web servers still run PHP 5.4 and lower, but Guzzle Commands needs PHP 5.5 or higher. This fork makes Guzzle Commands compatible with PHP 5.3.29 through 7.1.
Usage is identical to guzzle/command
, except that the code in this library is
namespaced under Hough\Guzzle\Command
instead of GuzzleHttp\Command
.
This library uses Guzzle (ehough/guzzle
, version 6.x) and provides the
foundations to create fully-featured web service clients by abstracting Guzzle
HTTP requests and responses into higher-level commands and
results. A middleware system, analogous to — but separate from — the one
in the HTTP layer may be used to customize client behavior when preparing
commands into requests and processing responses into results.
Key-value pair objects representing an operation of a web service. Commands have a name and a set of parameters.
Key-value pair objects representing the processed result of executing an operation of a web service.
Service Clients are web service clients that implement the
Hough\Guzzle\Command\ServiceClientInterface
and use an underlying Guzzle HTTP
client (GuzzleHttp\Client
) to communicate with the service. Service clients
create and execute commands (Hough\Guzzle\Command\CommandInterface
),
which encapsulate operations within the web service, including the operation
name and parameters. This library provides a generic implementation of a service
client: the Hough\Guzzle\Command\ServiceClient
class.
@TODO Add documentation
ServiceClient
's constructor- Transformer functions (
$commandToRequestTransformer
and$responseToResultTransformer
) - The
HandlerStack
Service clients create command objects using the getCommand()
method.
$commandName = 'foo';
$arguments = ['baz' => 'bar'];
$command = $client->getCommand($commandName, $arguments);
After creating a command, you may execute the command using the execute()
method of the client.
$result = $client->execute($command);
The result of executing a command will be a Hough\Guzzle\Command\ResultInterface
object. Result objects are ArrayAccess
-ible and contain the data parsed from
HTTP response.
Service clients have magic methods that act as shortcuts to executing commands
by name without having to create the Command
object in a separate step
before executing it.
$result = $client->foo(['baz' => 'bar']);
@TODO Add documentation
-Async
suffix for client methods- Promises
// Create and execute an asynchronous command.
$command = $command = $client->getCommand('foo', ['baz' => 'bar']);
$promise = $client->executeAsync($command);
// Use asynchronous commands with magic methods.
$promise = $client->fooAsync(['baz' => 'bar']);
@TODO Add documentation
wait()
-ing on promises.
$result = $promise->wait();
echo $result['fizz']; //> 'buzz'
@TODO Add documentation
executeAll()
executeAllAsync()
.- Options (
fulfilled
,rejected
,concurrency
)
Middleware can be added to the service client or underlying HTTP client to
implement additional behavior and customize the Command
-to-Result
and
Request
-to-Response
lifecycles, respectively.
- Middleware system and command vs request layers
- The
HandlerStack