feat: 移除fastapi 接口
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@@ -41,8 +41,8 @@ package-lock.json
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**/backend-mock/data
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# local env files
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.env.local
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.env.*.local
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#.env.local
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#.env.*.local
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.eslintcache
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logs
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@@ -1,6 +1,15 @@
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from rest_framework import serializers
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import asyncio
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from django.http import StreamingHttpResponse
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from rest_framework import serializers, status
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from rest_framework.decorators import action
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from rest_framework.response import Response
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from ai.llm.enums import LLMProvider
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from ai.llm.factory import get_adapter
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from ai.models import ChatMessage
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from backend import settings
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from models.ai import MessageType
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from utils.serializers import CustomModelSerializer
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from utils.custom_model_viewSet import CustomModelViewSet
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from django_filters import rest_framework as filters
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@@ -36,3 +45,119 @@ class ChatMessageViewSet(CustomModelViewSet):
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ordering_fields = ['create_time', 'id']
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ordering = ['-create_time']
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@action(detail=False, methods=['post'], url_path='stream')
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def stream(self, request):
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"""
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流式聊天接口
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"""
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content = request.data.get('content')
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conversation_id = request.data.get('conversation_id')
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platform = request.data.get('platform', 'deepseek')
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# 获取平台配置
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if platform == 'tongyi':
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model = 'qwen-plus'
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api_key = settings.DASHSCOPE_API_KEY
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provider = LLMProvider.TONGYI
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else:
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# 默认使用 DeepSeek
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model = 'deepseek-chat'
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api_key = settings.DEEPSEEK_API_KEY
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provider = LLMProvider.DEEPSEEK
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# 获取当前用户
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user_id = request.user.id
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try:
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# 获取或创建对话
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conversation = ChatMessage.objects.filter(conversation_id=conversation_id).order_by('id')
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except ValueError as e:
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return Response({"error": str(e)}, status=status.HTTP_400_BAD_REQUEST)
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# 添加用户消息
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ChatMessage.objects.create(
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conversation_id=conversation_id,
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user_id=user_id,
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role_id=None,
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model=model,
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model_id=None,
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type=MessageType.USER,
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reply_id=None,
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content=content,
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use_context=True,
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segment_ids=None,
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)
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# 构建上下文
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context = [("system", "You are a helpful assistant")]
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history = ChatMessage.objects.filter(conversation_id=conversation_id).order_by('id')
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for msg in history:
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context.append((msg.type, msg.content))
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# 获取LLM适配器
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llm = get_adapter(provider, api_key=api_key, model=model)
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# 创建流式响应
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# 8. 同步生成器(包装异步LLM流,核心修复点)
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def generate():
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ai_reply = ""
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loop = None
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try:
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# 创建新的事件循环(避免复用主线程循环)
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loop = asyncio.new_event_loop()
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asyncio.set_event_loop(loop)
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# 异步生成器包装函数
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async def async_stream():
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# 调用LLM的异步流式接口(假设 llm.stream_chat 是 async_generator)
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async for chunk in llm.stream_chat(context):
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yield chunk
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# 将异步生成器转换为同步迭代
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async_gen = async_stream()
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while True:
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try:
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# 逐个获取异步chunk
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chunk = loop.run_until_complete(async_gen.__anext__())
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except StopAsyncIteration:
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break # 流结束,退出循环
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except Exception as e:
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# 捕获LLM流异常,返回错误信息
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yield f"data: 错误:{str(e)}\n\n"
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break
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# 提取chunk内容(适配不同LLM的返回格式)
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if hasattr(chunk, 'content'):
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chunk_content = chunk.content.strip()
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elif isinstance(chunk, dict) and 'content' in chunk:
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chunk_content = chunk['content'].strip()
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else:
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chunk_content = str(chunk).strip()
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# 只返回非空内容
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if chunk_content:
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ai_reply += chunk_content
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# 遵循SSE格式:data: 内容\n\n(必须以\n\n结尾)
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yield f"data: {chunk_content}\n\n"
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finally:
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# 关闭事件循环(避免资源泄漏)
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if loop:
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loop.close()
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# 保存AI回复
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if ai_reply.strip():
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ChatMessage.objects.create(
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conversation_id=conversation_id,
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user_id=user_id,
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role_id=None,
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model=model,
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model_id=None,
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type=MessageType.ASSISTANT,
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reply_id=None,
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content=ai_reply,
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use_context=True,
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segment_ids=None,
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)
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return StreamingHttpResponse(generate(), content_type='text/event-stream')
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@@ -103,7 +103,7 @@ DATABASES = {
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'ENGINE': 'django.db.backends.mysql',
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'NAME': 'django_vue',
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'USER': os.getenv('DB_USER', 'chenze'),
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'PASSWORD': os.getenv('DB_PASSWORD', 'my-secret-pw'),
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'PASSWORD': os.getenv('DB_PASSWORD', '123456'),
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'HOST': os.getenv('DB_HOST', 'localhost'),
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}
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}
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@@ -112,25 +112,25 @@ services:
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env_file:
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- ./docker/.env.dev
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- ./docker/.env.local
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ai_service:
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build:
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context: ./ai_service
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dockerfile: Dockerfile
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target: dev
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volumes:
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- ./ai_service:/app
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ports:
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- "48010:8010"
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depends_on:
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- db
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- redis
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networks:
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- dj_admin_network
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env_file:
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- ./docker/.env.dev
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- ./docker/.env.local
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command: uvicorn main:app --host 0.0.0.0 --port 8010 --reload
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#
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# ai_service:
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# build:
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# context: ./ai_service
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# dockerfile: Dockerfile
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# target: dev
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# volumes:
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# - ./ai_service:/app
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# ports:
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# - "48010:8010"
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# depends_on:
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# - db
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# - redis
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# networks:
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# - dj_admin_network
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# env_file:
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# - ./docker/.env.dev
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# - ./docker/.env.local
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# command: uvicorn main:app --host 0.0.0.0 --port 8010 --reload
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networks:
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dj_admin_network:
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@@ -95,24 +95,24 @@ services:
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networks:
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- app_net
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ai_service:
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restart: always
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build:
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context: ./ai_service
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dockerfile: Dockerfile # 复用 backend 的 Dockerfile
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target: prod
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volumes:
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- ./ai_service:/app
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ports:
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- "38010:8010"
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depends_on:
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- db
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- redis
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networks:
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- app_net
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env_file:
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- ./docker/.env.prod
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- ./docker/.env.local
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# ai_service:
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# restart: always
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# build:
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# context: ./ai_service
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# dockerfile: Dockerfile # 复用 backend 的 Dockerfile
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# target: prod
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# volumes:
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# - ./ai_service:/app
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# ports:
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# - "38010:8010"
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# depends_on:
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# - db
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# - redis
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# networks:
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# - app_net
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# env_file:
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# - ./docker/.env.prod
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# - ./docker/.env.local
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frontend:
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restart: always
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@@ -35,7 +35,7 @@ export async function fetchAIStream({
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platform,
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conversation_id,
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}: FetchAIStreamParams) {
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const res = await fetchWithAuth('chat/stream', {
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const res = await fetchWithAuth('ai/chat_message/stream/', {
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method: 'POST',
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body: JSON.stringify({ content, platform, conversation_id }),
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});
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@@ -2,7 +2,7 @@ import { useAccessStore } from '@vben/stores';
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import { formatToken } from '#/utils/auth';
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export const API_BASE = '/api/ai/v1/';
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export const API_BASE = '/api/admin/';
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export function fetchWithAuth(input: RequestInfo, init: RequestInit = {}) {
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const accessStore = useAccessStore();
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@@ -13,14 +13,10 @@ import {
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Row,
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Select,
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} from 'ant-design-vue';
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import {
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createConversation,
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fetchAIStream,
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getConversations,
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getMessages,
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} from '#/api/ai/chat';
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import {AiChatConversationModel} from "#/models/ai/chat_conversation";
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import {AiChatMessageModel} from "#/models/ai/chat_message";
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import { AiChatConversationModel } from '#/models/ai/chat_conversation';
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import { AiChatMessageModel } from '#/models/ai/chat_message';
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import {fetchAIStream} from "#/api/ai/chat";
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const aiChatConversation = new AiChatConversationModel();
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const aiChatMessageModel = new AiChatMessageModel();
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