private void buildPostRoute(TarantoolClient tarantoolClient) { router.post("/post") .handler(rc -> tarantoolClient.graphql(rc.getBodyAsJson()) .onSuccess(httpResp -> { if ( httpResp.statusCode() == 200 && !httpResp.getHeader("content-type").contentEquals("application/json") ) { rc.end(httpResp.bodyAsBuffer()); } else { log.error("GraphQL query not found"); rc.response() .setStatusCode(400) .putHeader("Content-Type", "application/json") .end( new JsonObject() .put("message", httpResp.statusMessage()) .toBuffer() ); } }) ); }