add 实时进度API

app/api/endpoints/system.py

@@ -0,0 +1,25 @@
+import asyncio
+import json
+
+from fastapi import APIRouter
+from fastapi.responses import StreamingResponse
+
+from app.helper.progress import ProgressHelper
+
+router = APIRouter()
+
+
+@router.get("/progress/{process_type}", summary="实时进度")
+async def get_progress(process_type: str):
+    """
+    实时获取处理进度，返回格式为SSE
+    """
+    progress = ProgressHelper()
+
+    async def event_generator():
+        while True:
+            detail = progress.get(process_type)
+            yield 'data: %s\n\n' % json.dumps(detail)
+            await asyncio.sleep(0.2)
+
+    return StreamingResponse(event_generator(), media_type="text/event-stream")