Function abiEncode

src/common.cpp:13–60

Shared ABI encoding function implementation

// Shared ABI encoding function implementation
std::string abiEncode(const std::string &function_name,
                      const std::string &abi_json,
                      const std::string &params_json) {
  // Escape quotes in the JSON strings for shell command
  std::string escaped_abi = abi_json;
  std::string escaped_params = params_json;

  // Replace " with \" for shell safety
  size_t pos = 0;
  while ((pos = escaped_abi.find("\"", pos)) != std::string::npos) {
    escaped_abi.replace(pos, 1, "\\\"");
    pos += 2;
  }
  pos = 0;
  while ((pos = escaped_params.find("\"", pos)) != std::string::npos) {
    escaped_params.replace(pos, 1, "\\\"");
    pos += 2;
  }

  std::string command =
      "npx ts-node " + std::string(getenv("PWD") ? getenv("PWD") : ".") +
      "/ethereum-sdk/scripts/abiEncode.ts \"" + escaped_abi + "\" \"" +
      function_name + "\" \"" + escaped_params + "\"";

  FILE *pipe = popen(command.c_str(), "r");
  if (!pipe) {
    throw std::runtime_error("Failed to execute ABI encoding script");
  }

  std::string result;
  char buffer[128];
  while (fgets(buffer, sizeof(buffer), pipe) != nullptr) {
    result += buffer;
  }

  int status = pclose(pipe);
  if (status != 0) {
    throw std::runtime_error("ABI encoding script failed with status " +
                             std::to_string(status));
  }

  // Remove trailing newline
  if (!result.empty() && result.back() == '\n') {
    result.pop_back();
  }

  return result;
}

// Helper function for curl write callback
static size_t WriteCallback(void *contents, size_t size, size_t nmemb,