src/Kernel.php
public function getStoragePath(): string
    {
        if ($this->storagePath == '') {
            $this->setStoragePath($this->getBasePath() . '/storage');
        }

        return $this->storagePath;
    }
public function getStoragePath(): string
    {
        if ($this->storagePath == '') {
            $this->setStoragePath($this->getBasePath() . '/storage');
        }

        return $this->storagePath;
    }
Returns storage path, e.g. /var/www/storage

@return string