Function query_database_async

examples/tool_calling_async.cpp:64–92

Async tool: Simulate database query

// Async tool: Simulate database query
std::future<ai::JsonValue> query_database_async(
    const ai::JsonValue& args,
    const ai::ToolExecutionContext& context) {
  std::string query = args["query"].get<std::string>();

  return std::async(std::launch::async, [query]() {
    std::cout << "🗄️  Executing database query: " << query << " (async)..."
              << std::endl;

    // Simulate database processing time
    std::this_thread::sleep_for(std::chrono::milliseconds(800));

    ai::JsonValue results = ai::JsonValue::array();
    if (query.find("users") != std::string::npos) {
      results = {{{"id", 1}, {"name", "John"}, {"active", true}},
                 {{"id", 2}, {"name", "Jane"}, {"active", true}},
                 {{"id", 3}, {"name", "Bob"}, {"active", false}}};
    } else if (query.find("orders") != std::string::npos) {
      results = {
          {{"order_id", 100}, {"amount", 99.99}, {"status", "shipped"}},
          {{"order_id", 101}, {"amount", 149.99}, {"status", "pending"}}};
    }

    std::cout << "🗄️  Database query completed: " << query << std::endl;

    return ai::JsonValue{
        {"query", query}, {"results", results}, {"execution_time_ms", 800}};
  });
}

// Sync tool for comparison: Quick calculation
ai::JsonValue calculate_stats(const ai::JsonValue& args,