Method decode

include/mgmt/rpc/jsonrpc/json/YAMLCodec.h:132–167

@brief Decode a string, either json or yaml into a @see specs::RPCRequest . @c ec will report the error if occurs @see RPCErrorCode @param request The string request, this should be either json or yaml. @param ec Output value, The error reporting. @return specs::RPCRequest A valid rpc response object if no errors.

  /// @return specs::RPCRequest A valid rpc response object if no errors.
  ///
  static specs::RPCRequest
  decode(std::string const &request, std::error_code &ec) noexcept
  {
    specs::RPCRequest msg;
    try {
      YAML::Node node = YAML::Load(request);
      switch (node.Type()) {
      case YAML::NodeType::Map: { // 4
        // single element
        msg.add_message(decode_and_validate(node));
      } break;
      case YAML::NodeType::Sequence: { // 3
        // In case we get [] which is valid sequence but invalid jsonrpc message.
        if (node.size() > 0) {
          // it's a batch
          msg.is_batch(true);
          msg.reserve(node.size());

          for (auto &&n : node) {
            msg.add_message(decode_and_validate(n));
          }
        } else {
          // Valid json but invalid base on jsonrpc specs, ie: [].
          ec = error::RPCErrorCode::INVALID_REQUEST;
        }
      } break;
      default:
        // Only Sequences or Objects are valid.
        ec = error::RPCErrorCode::INVALID_REQUEST;
        break;
      }
    } catch (YAML::Exception const &e) {
      ec = error::RPCErrorCode::PARSE_ERROR;
    }
    return msg;
  }
};

///