Dart

OpenAI (ChatGPT) Create Transcription

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Show how to transcribe audio to text. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // This example assumes the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  final http = CkHttp();

  // Implements the following CURL command:

  // curl https://api.openai.com/v1/audio/transcriptions \
  //   -H "Authorization: Bearer $OPENAI_API_KEY" \
  //   -H "Content-Type: multipart/form-data" \
  //   -F file="@/path/to/file/audio.mp3" \
  //   -F model="whisper-1"

  // Use the following online tool to generate HTTP code from a CURL command
  // Convert a cURL Command to HTTP Source Code

  final req = CkHttpRequest();
  req.httpVerb = 'POST';
  req.path = '/v1/audio/transcriptions';
  req.contentType = 'multipart/form-data';
  req.addFileForUpload2('file', 'qa_data/mp3/Conversation-with-39-year-old-male-Virginia_afccal000227_001_00-03-37.mp3', 'audio/mpeg');

  req.addParam('model', 'whisper-1');

  req.addHeader('Expect', '100-continue');
  // This is NOT a real key.  Change the "sk-vi...." to your own key.
  req.addHeader('Authorization', 'Bearer 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');

  final resp = CkHttpResponse();
  try {
    http.httpSReq('api.openai.com', 443, true, req, resp);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final sbResponseBody = CkStringBuilder();
  resp.getBodySb(sbResponseBody);

  final jResp = CkJsonObject();
  jResp.loadSb(sbResponseBody);
  jResp.emitCompact = false;

  print('Response Body:');
  print(jResp.emit());

  final respStatusCode = resp.statusCode;
  print('Response Status Code = $respStatusCode');
  if (respStatusCode >= 400) {
    print('Response Header:');
    print(resp.header);
    print('Failed.');
    return;
  }

  // Sample JSON response:
  // (Sample code for parsing the JSON response is shown below)

  // {
  //   "text": "Imagine the wildest idea that you've ever had, and you're curious about how it might scale to something that's a 100, a 1,000 times bigger. This is a place where you can get to do that."
  // }

  // Sample code for parsing the JSON response...
  // Use the following online tool to generate parsing code from sample JSON:
  // Generate Parsing Code from JSON

  final text = jResp.stringOf('text');
}