string|null prefers(string|array $contentTypes) Return the most suitable

throwResponse() Throws the response in a HttpResponseException instance.

UploadedFile|array|null file(string $key = null, mixed $default = null)

string extension() Get the file's extension.

$this instance() Return the Request instance.

mixed __call(string $method, array $parameters) Dynamically handle calls

int status() Get the status code for the response.

string ip() Returns the client IP address.

bool expectsJson() Determine if the current request probably expects a

$this withInput(array $input = null) Flash an array of input to the session