Send multiple requests through a middleware in Guzzle - php

Question

Is there any way I can send multiple requests with guzzle using a middleware and according to certain parameters?
To be more specific I need:
class MyMiddleware
{
/**
* #param callable $handler
* #return \Closure
*/
public function __invoke(callable $handler)
{
return function (RequestInterface $request, array $options) use ($handler) {
if(!isset($options['token']){
//request the token from a url
}
//after the token is aquired proceed with the original request
return $handler($request, $options);
};
}
}

Answer 1

Is this similar to what you are inquiring about? I have done similar to it.
$handler = GuzzleHttp\HandlerStack::create();
$client = new GuzzleHttp\Client([
'handler' = $handler,
// other options
])
$handler->push(GuzzleHttp\Middleware::mapRequest(
function (Psr\Http\Message\RequestInterface $request) use ($client) {
if ('POST' !== $request->getMethod()) {
return $request;
}
if($RequestIsOkAsIs) {
return $request;
}
$response = $client->get($someUrl, $requestOptions);
// Play with the response to modify the body
$newBody = 'results of stuff';
return new GuzzleHttp\Psr7\Request(
$request->getMethod(),
$request->getUri(),
$request->getHeaders(),
$newBody,
$request->getProtocolVersion()
);
}
);