src/Controller.php
public function middleware(string $key, string $group = null)
    {
        return $this->middleMan->middle($key, $group);
    }
public function middleware(string $key, string $group = null)
    {
        return $this->middleMan->middle($key, $group);
    }
Use an a particular middleware once at this spot using the given identifiers.

@param string $key
@param string|null $group
@return mixed