Method sendJsonRpc

src/quip_factory.cpp:352–391

  static int getNextRequestId() { return request_id_counter_++; }

  nlohmann::json sendJsonRpc(const std::string &method,
                             const nlohmann::json &params) const {
    CURL *curl;
    CURLcode res;
    std::string readBuffer;

    curl = curl_easy_init();
    if (curl) {
      struct curl_slist *headers = NULL;
      headers = curl_slist_append(headers, "Content-Type: application/json");

      nlohmann::json request = {{"jsonrpc", "2.0"},
                                {"method", method},
                                {"params", params},
                                {"id", getNextRequestId()}};

      std::string request_str = request.dump();

      curl_easy_setopt(curl, CURLOPT_URL, rpc_url_.c_str());
      curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
      curl_easy_setopt(curl, CURLOPT_POSTFIELDS, request_str.c_str());
      curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
      curl_easy_setopt(curl, CURLOPT_WRITEDATA, &readBuffer);
      res = curl_easy_perform(curl);
      curl_easy_cleanup(curl);
      curl_slist_free_all(headers);

      if (res != CURLE_OK) {
        throw std::runtime_error("curl_easy_perform() failed: " +
                                 std::string(curl_easy_strerror(res)));
      }

      auto response_json = nlohmann::json::parse(readBuffer);
      if (response_json.contains("error")) {
        throw std::runtime_error("RPC error: " + response_json["error"].dump());
      }
      return response_json;
    }
    throw std::runtime_error("curl_easy_init() failed");
  }

  // Helper to call the abiEncode.ts script
  std::string abiEncode(const std::string &functionName, const std::string &abi,