getJSON example

return true;
    }

    /** * Takes a Request object and grabs the input data to use from its * array values. */
    public function withRequest(RequestInterface $request): ValidationInterface
    {
        /** @var IncomingRequest $request */
        if (strpos($request->getHeaderLine('Content-Type'), 'application/json') !== false) {
            $this->data = $request->getJSON(true);

            return $this;
        }

        if (in_array(strtolower($request->getMethod()), ['put', 'patch', 'delete'], true)
            && strpos($request->getHeaderLine('Content-Type'), 'multipart/form-data') === false
        ) {
            $this->data = $request->getRawInput();
        } else {
            $this->data = $request->getVar() ?? [];
        }

        

    public function getJsonVar($index = null, bool $assoc = false, ?int $filter = null, $flags = null)
    {
        helper('array');

        $data = $this->getJSON(true);
        if (! is_array($data)) {
            return null;
        }

        if (is_string($index)) {
            $data = dot_array_search($index, $data);
        } elseif (is_array($index)) {
            $result = [];

            foreach ($index as $key) {
                $result[$key] = dot_array_search($key, $data);
            }

// --------------------------------------------------------------------     // JSON     // --------------------------------------------------------------------
    /** * Returns the response's body as JSON * * @return false|string */
    public function getJSON()
    {
        $response = $this->response->getJSON();

        if ($response === null) {
            return false;
        }

        return $response;
    }

    /** * Test that the response contains a matching JSON fragment. * * @throws Exception */