Update page 'Day 8 homework - Karen'

Day 8 homework - Karen.md

@@ -33,3 +33,36 @@ if __name__ == '__main__':
 
 ![Flask](https://gogs.gtsplab.com:5432/j/python-bootcamp/raw/Branch_Karen/flack.png)
 
+I also try to use fastapi this morning, and the result turns to be like this:
+
+
+![fastapi](https://gogs.gtsplab.com:5432/j/python-bootcamp/raw/Branch_Karen/fastapi.png)
+
+
+```
+import os
+from fastapi import FastAPI
+from fastapi.responses import FileResponse
+from urllib.parse import urlparse
+
+app = FastAPI()
+
+@app.get('/')
+def index():
+    return 'Hello, welcome to the cat picture server!'
+
+@app.get('/{path:path}')
+async def serve_jpeg(path: str):
+    if path.endswith('.jpg'):
+        file_path = path[1:]
+        if os.path.isfile(file_path):
+            return FileResponse(file_path, media_type='image/jpeg')
+        else:
+            return {'detail': 'File not found'}, 404
+    else:
+        return {'detail': 'Only .jpg files are allowed'}, 403
+
+if __name__ == '__main__':
+    import uvicorn
+    uvicorn.run(app, host='0.0.0.0', port=8000)
+```