Is there anyway to stream audio data in flutter using api?

I am building something and i need it to use openai tts in my flutter app
Everything is good but the audio response can take some time sometimes.
So it would be nice if i can stream it but coundnt find any documentation to stream with api.
Please help if you have any idea

https://platform.openai.com/docs/guides/text-to-speech/streaming-real-time-audio

You can just start playing the audio file as soon as some of the chunks have been downloaded.

instead of using file i am using direct bits to play it without it needing to download to a file

  Future<Uint8List> generateAudioFromText(String text, String voice) async {
    final url = Uri.parse(AppConstants.openAISpeech);
    final headers = {
      'Authorization': 'Bearer ${AppConstants.openAIApiKey}',
      'Content-Type': 'application/json',
    };
    final body = jsonEncode({
      'model': 'tts-1',
      'input': text,
      'voice': voice,
    });

    final response = await http.post(url, headers: headers, body: body);
    if (response.statusCode == 200) {
      return response.bodyBytes;
    } else {
      throw Exception('Failed to generate audio: ${response.body}');
    }
  }

That should work too.

Quick question, doesn’t this expose your OpenAI API key? How do you make sure it’s safe without using any backed/middleware service?