OpenAI Web Search

final agent = Agent(
  'openai-responses',
  chatModelOptions: const OpenAIResponsesChatModelOptions(
    serverSideTools: {OpenAIServerSideTool.webSearch},
  ),
);

await for (final chunk in agent.sendStream('Latest Dart language news?')) {
  stdout.write(chunk.output);
  dumpWebSearch(chunk.metadata);
}

void dumpWebSearch(Map<String, dynamic> metadata) {
  final events = metadata['web_search'] as List?;
  if (events == null) return;
  for (final event in events) {
    stdout.writeln('[web-search] ${event['type']}');
  }
}

final options = OpenAIResponsesChatModelOptions(
  serverSideTools: const {OpenAIServerSideTool.webSearch},
  webSearchConfig: const WebSearchConfig(
    contextSize: WebSearchContextSize.high,
    followupQuestions: true,
    location: WebSearchLocation(city: 'Portland', region: 'OR'),
  ),
);

final agent = Agent('openai-responses', chatModelOptions: options);

final events = chunk.metadata['web_search'] as List?;
if (events != null) {
  for (final event in events) {
    if (event['results'] case final List<dynamic> results?) {
      for (final result in results) {
        stdout.writeln('- ${result['url']}');
      }
    }
  }
}