tanlongsheng
2 years ago
15 changed files with 152 additions and 78 deletions
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Before Width: | Height: | Size: 92 KiB |
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After Width: | Height: | Size: 123 KiB |
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Before Width: | Height: | Size: 423 KiB |
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Before Width: | Height: | Size: 537 KiB After Width: | Height: | Size: 110 KiB |
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import 'dart:convert'; |
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import 'package:http/http.dart' as http; |
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import '../../core/utils/logger.dart'; |
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class KouziAIService { |
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final String apiKey = |
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'pat_QGDh6UGm3PaeL9GRS95JxrJ9aoU92ehMLQQ2NCre1TeBC5YeTcjpDmlz3efsJ8lh'; |
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final String modelId = '7481292724306657316'; |
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Stream<String> sendMessageStream({ |
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required List<Map<String, String>> messages, |
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required String systemPrompt, |
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}) async* { |
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final client = http.Client(); |
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final url = Uri.parse('https://api.coze.cn/v3/chat'); |
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final headers = { |
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'Content-Type': 'application/json', |
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'Authorization': 'Bearer $apiKey', |
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}; |
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final requestBody = { |
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"bot_id": modelId, |
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"user_id": "3422", |
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"additional_messages": [ |
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{ |
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"content": messages.last['content'], |
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"content_type": "text", |
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"role": "user", |
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"type": "question", |
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}, |
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], |
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"shortcut_command": {"command_id": "0"}, |
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"stream": true, |
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}; |
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try { |
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final request = http.Request('POST', url) |
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..headers.addAll(headers) |
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..body = jsonEncode(requestBody); |
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final response = await client.send(request); |
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final regex = RegExp(r'(?<=[。！？；：.:;?!\n])'); |
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String allContent = ''; |
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//流式处理响应数据 |
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await for (final chunk in response.stream |
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.transform(utf8.decoder) |
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.transform(const LineSplitter())) { |
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if (chunk.isEmpty) continue; |
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if (chunk.startsWith('data:')) { |
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final jsonStr = chunk.substring(5).trim(); |
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if (jsonStr == '[DONE]') { |
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break; |
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} |
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try { |
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final data = jsonDecode(jsonStr); |
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if (data['type'] == 'answer') { |
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String content = data['content'] ?? ''; |
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if (content.isNotEmpty && allContent != content) { |
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allContent += content; |
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List splitText = |
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content.split(regex).where((s) => s.isNotEmpty).toList(); |
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for (var element in splitText) { |
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yield element; |
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} |
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} |
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} |
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} catch (e) { |
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Logger.error('JSON解析错误: $e'); |
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} |
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} |
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} |
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} catch (e) { |
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Logger.error('请求异常: $e'); |
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} finally { |
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client.close(); |
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} |
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} |
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} |
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