188 lines
5.8 KiB
Python
188 lines
5.8 KiB
Python
"""
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低代码智能体平台 - FastAPI 主应用
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"""
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import logging
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from fastapi import FastAPI, Request
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.exceptions import RequestValidationError
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from sqlalchemy.exc import SQLAlchemyError
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from app.core.config import settings
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from app.core.error_handler import (
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validation_exception_handler,
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api_exception_handler,
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sqlalchemy_exception_handler,
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general_exception_handler
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)
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from app.core.exceptions import BaseAPIException
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from app.core.database import init_db
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# 配置日志
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
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)
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logger = logging.getLogger(__name__)
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app = FastAPI(
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title=settings.APP_NAME,
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version=settings.APP_VERSION,
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description="""
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## 低代码智能体平台 API
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一个支持可视化工作流设计和智能Agent配置的低代码平台。
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### 主要功能
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* **用户认证** - 用户注册、登录、JWT认证
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* **工作流管理** - 工作流的创建、读取、更新、删除、执行
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* **工作流版本管理** - 版本保存、版本列表、版本回滚
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* **执行管理** - 工作流执行、执行记录查询、执行状态监控
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* **执行日志** - 详细的执行日志记录和查询
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* **数据源管理** - 多种数据源的连接和管理
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* **WebSocket实时推送** - 执行状态实时更新
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### 认证方式
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大部分API需要JWT认证。请先通过 `/api/v1/auth/login` 获取token，然后在请求头中添加：
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```
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Authorization: Bearer <your_token>
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```
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### API版本
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当前API版本：v1
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### 文档
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* **Swagger UI**: `/docs` - 交互式API文档
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* **ReDoc**: `/redoc` - 可读性更好的API文档
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""",
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docs_url="/docs",
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redoc_url="/redoc",
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openapi_tags=[
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{
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"name": "auth",
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"description": "用户认证相关API，包括注册、登录、获取用户信息等。"
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},
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{
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"name": "workflows",
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"description": "工作流管理API，包括工作流的CRUD操作、执行、版本管理等。"
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},
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{
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"name": "executions",
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"description": "执行管理API，包括执行记录的创建、查询、状态获取等。"
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},
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{
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"name": "execution-logs",
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"description": "执行日志API，包括日志查询、日志统计等。"
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},
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{
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"name": "data-sources",
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"description": "数据源管理API，包括数据源的CRUD操作、连接测试、数据查询等。"
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},
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{
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"name": "websocket",
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"description": "WebSocket API，用于实时推送执行状态。"
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}
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]
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)
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# CORS 配置
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cors_origins = [origin.strip() for origin in settings.CORS_ORIGINS.split(",")]
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app.add_middleware(
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CORSMiddleware,
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allow_origins=cors_origins,
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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# 注册全局异常处理器
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app.add_exception_handler(RequestValidationError, validation_exception_handler)
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app.add_exception_handler(BaseAPIException, api_exception_handler)
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app.add_exception_handler(SQLAlchemyError, sqlalchemy_exception_handler)
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app.add_exception_handler(Exception, general_exception_handler)
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# 请求日志中间件
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@app.middleware("http")
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async def log_requests(request: Request, call_next):
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"""记录请求日志"""
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import time
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start_time = time.time()
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# 记录请求
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logger.info(f"{request.method} {request.url.path} - 客户端: {request.client.host if request.client else 'unknown'}")
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try:
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response = await call_next(request)
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process_time = time.time() - start_time
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# 记录响应
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logger.info(
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f"{request.method} {request.url.path} - "
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f"状态码: {response.status_code} - "
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f"耗时: {process_time:.3f}s"
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)
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return response
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except Exception as e:
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process_time = time.time() - start_time
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logger.error(
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f"{request.method} {request.url.path} - "
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f"异常: {str(e)} - "
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f"耗时: {process_time:.3f}s"
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)
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raise
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@app.get("/")
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async def root():
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"""根路径"""
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return {
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"message": "欢迎使用低代码智能体平台 API",
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"version": settings.APP_VERSION,
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"docs": "/docs"
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}
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@app.get("/health")
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async def health_check():
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"""健康检查"""
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return {"status": "healthy"}
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# 应用启动时初始化数据库
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@app.on_event("startup")
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async def startup_event():
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"""应用启动事件"""
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try:
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logger.info("正在初始化数据库...")
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init_db()
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logger.info("数据库初始化完成")
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except Exception as e:
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logger.error(f"数据库初始化失败: {e}")
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# 不抛出异常，允许应用继续启动
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# 注册路由
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from app.api import auth, workflows, executions, websocket, execution_logs, data_sources, agents, model_configs, webhooks, template_market, batch_operations, collaboration, permissions, monitoring, alert_rules, node_test, node_templates
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app.include_router(auth.router)
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app.include_router(workflows.router)
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app.include_router(executions.router)
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app.include_router(websocket.router)
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app.include_router(execution_logs.router)
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app.include_router(data_sources.router)
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app.include_router(agents.router)
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app.include_router(model_configs.router)
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app.include_router(webhooks.router)
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app.include_router(template_market.router)
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app.include_router(batch_operations.router)
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app.include_router(collaboration.router)
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app.include_router(permissions.router)
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app.include_router(monitoring.router)
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app.include_router(alert_rules.router)
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app.include_router(node_test.router)
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app.include_router(node_templates.router)
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if __name__ == "__main__":
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import uvicorn
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uvicorn.run(app, host="0.0.0.0", port=8000)
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