| Exception |
| File |
| RateLimiter |
| Session |
| Test |
| RequestMatcherInterface | RequestMatcherInterface is an interface for strategies to match a Request. |
| ExpressionRequestMatcher | ExpressionRequestMatcher uses an expression to match a Request. |
| InputBag | InputBag is a container for user input values such as $_GET, $_POST, $_REQUEST, and $_COOKIE. |
| ParameterBag | ParameterBag is a container for key/value pairs. |
| RedirectResponse | RedirectResponse represents an HTTP response doing a redirect. |
| RequestStack | Request stack that controls the lifecycle of requests. |
| UrlHelper | A helper service for manipulating URLs within and outside the request scope. |