Method evaluateIfNoneMatch

lib/Controller/OutputController.php:171–183

($reportMetadata)

	}

	private function evaluateIfNoneMatch($reportMetadata) {
		$clientETag = $this->getRequestCacheKey();
		if ($clientETag !== null && $clientETag !== '') {
			$clientETag = (int)$clientETag;
			// Compare with your current version/etag
			if ($clientETag === (int)$reportMetadata['version']) {
				$response = new DataResponse(null, HTTP::STATUS_NOT_MODIFIED);
				$response->addHeader('ETag', '"' . $reportMetadata['version'] . '"');
				$response->addHeader('X-Analytics-Cacheable', 'true');
				return $response;
			}
		}
	}

	private function getRequestCacheKey(): ?string {
		$clientETag = $this->request->getHeader('If-None-Match');