Another use case to document; changing the client's class, and how to autowire that to another own service definition.

Possible content

The bundle can get used as "a factory" to create an autowireable class. That way the bundle puts the middleware (like logging / error reporting / timing) in place.

<?php

namespace Acme\Infra\Shopping;

class Client extends \GuzzleHttp\Clie

The MockMiddleware creates a RejectedPromise with a string reason in https://github.com/csarrazi/guzzle-cache-middleware/blob/master/src/MockMiddleware.php#L47 if the cache is not found. The log middleware then fails because the MessageFormatter requires an exception in https://github.com/guzzle/guzzle/blob/master/src/MessageFormatter.php#L70

It seems like a rejection reason does not necessaril