Method routing

external/httplib.h:6805–6880

}

inline bool Server::routing(Request &req, Response &res, Stream &strm) {
  if (pre_routing_handler_ &&
      pre_routing_handler_(req, res) == HandlerResponse::Handled) {
    return true;
  }

  // File handler
  auto is_head_request = req.method == "HEAD";
  if ((req.method == "GET" || is_head_request) &&
      handle_file_request(req, res, is_head_request)) {
    return true;
  }

  if (detail::expect_content(req)) {
    // Content reader handler
    {
      ContentReader reader(
          [&](ContentReceiver receiver) {
            return read_content_with_content_receiver(
                strm, req, res, std::move(receiver), nullptr, nullptr);
          },
          [&](MultipartContentHeader header, ContentReceiver receiver) {
            return read_content_with_content_receiver(strm, req, res, nullptr,
                                                      std::move(header),
                                                      std::move(receiver));
          });

      if (req.method == "POST") {
        if (dispatch_request_for_content_reader(
                req, res, std::move(reader),
                post_handlers_for_content_reader_)) {
          return true;
        }
      } else if (req.method == "PUT") {
        if (dispatch_request_for_content_reader(
                req, res, std::move(reader),
                put_handlers_for_content_reader_)) {
          return true;
        }
      } else if (req.method == "PATCH") {
        if (dispatch_request_for_content_reader(
                req, res, std::move(reader),
                patch_handlers_for_content_reader_)) {
          return true;
        }
      } else if (req.method == "DELETE") {
        if (dispatch_request_for_content_reader(
                req, res, std::move(reader),
                delete_handlers_for_content_reader_)) {
          return true;
        }
      }
    }

    // Read content into `req.body`
    if (!read_content(strm, req, res)) { return false; }
  }