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<?php |
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namespace Overblog\GraphQLBundle\Request; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpKernel\Exception\BadRequestHttpException; |
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class BatchParser implements ParserInterface |
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{ |
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const PARAM_ID = 'id'; |
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private static $queriesDefaultValue = [ |
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self::PARAM_ID => null, |
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self::PARAM_QUERY => null, |
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self::PARAM_VARIABLES => null, |
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]; |
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/** |
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* @param Request $request |
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* |
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* @return array |
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*/ |
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public function parse(Request $request) |
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{ |
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// Extracts the GraphQL request parameters |
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$queries = $this->getParsedBody($request); |
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if (empty($queries)) { |
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throw new BadRequestHttpException('Must provide at least one valid query.'); |
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} |
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foreach ($queries as $i => &$query) { |
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$query = array_filter($query) + self::$queriesDefaultValue; |
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if (!is_string($query[static::PARAM_QUERY])) { |
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throw new BadRequestHttpException(sprintf('%s is not a valid query', json_encode($query[static::PARAM_QUERY]))); |
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} |
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} |
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return $queries; |
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} |
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/** |
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* Gets the body from the request. |
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* |
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* @param Request $request |
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* |
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* @return array |
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*/ |
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private function getParsedBody(Request $request) |
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{ |
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$type = explode(';', $request->headers->get('content-type'))[0]; |
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// JSON object |
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if ($type !== static::CONTENT_TYPE_JSON) { |
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throw new BadRequestHttpException(sprintf('Only request with content type "%s" is accepted.', static::CONTENT_TYPE_JSON)); |
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} |
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$parsedBody = json_decode($request->getContent(), true); |
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if (JSON_ERROR_NONE !== json_last_error()) { |
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throw new BadRequestHttpException('POST body sent invalid JSON'); |
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} |
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return $parsedBody; |
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} |
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} |
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overblog /
GraphQLBundle
