asgi/wsgi mounting implemented

examples/apps/fastapi_app.py

@@ -0,0 +1,118 @@
+"""
+Example FastAPI application for PyServe ASGI mounting.
+
+This demonstrates how to create a FastAPI application that can be
+mounted at a specific path in PyServe.
+"""
+
+from typing import Optional, Dict, Any
+
+try:
+    from fastapi import FastAPI, HTTPException
+    from fastapi.responses import JSONResponse
+    from pydantic import BaseModel
+except ImportError:
+    raise ImportError(
+        "FastAPI is not installed. Install with: pip install fastapi"
+    )
+
+
+app = FastAPI(
+    title="Example FastAPI App",
+    description="This is an example FastAPI application mounted in PyServe",
+    version="1.0.0",
+)
+
+
+class Item(BaseModel):
+    name: str
+    description: Optional[str] = None
+    price: float
+    tax: Optional[float] = None
+
+
+class Message(BaseModel):
+    message: str
+
+
+items_db: Dict[int, Dict[str, Any]] = {
+    1: {"name": "Item 1", "description": "First item", "price": 10.5, "tax": 1.05},
+    2: {"name": "Item 2", "description": "Second item", "price": 20.0, "tax": 2.0},
+}
+
+
+@app.get("/")
+async def root():
+    return {"message": "Welcome to FastAPI mounted in PyServe!"}
+
+
+@app.get("/health")
+async def health_check():
+    return {"status": "healthy", "app": "fastapi"}
+
+
+@app.get("/items")
+async def list_items():
+    return {"items": list(items_db.values()), "count": len(items_db)}
+
+
+@app.get("/items/{item_id}")
+async def get_item(item_id: int):
+    if item_id not in items_db:
+        raise HTTPException(status_code=404, detail="Item not found")
+    return items_db[item_id]
+
+
+@app.post("/items", response_model=Message)
+async def create_item(item: Item):
+    new_id = max(items_db.keys()) + 1 if items_db else 1
+    items_db[new_id] = item.model_dump()
+    return {"message": f"Item created with ID {new_id}"}
+
+
+@app.put("/items/{item_id}")
+async def update_item(item_id: int, item: Item):
+    if item_id not in items_db:
+        raise HTTPException(status_code=404, detail="Item not found")
+    items_db[item_id] = item.model_dump()
+    return {"message": f"Item {item_id} updated"}
+
+
+@app.delete("/items/{item_id}")
+async def delete_item(item_id: int):
+    if item_id not in items_db:
+        raise HTTPException(status_code=404, detail="Item not found")
+    del items_db[item_id]
+    return {"message": f"Item {item_id} deleted"}
+
+
+def create_app(debug: bool = False, **kwargs) -> FastAPI:
+    application = FastAPI(
+        title="Example FastAPI App (Factory)",
+        description="FastAPI application created via factory function",
+        version="2.0.0",
+        debug=debug,
+    )
+
+    @application.get("/")
+    async def factory_root():
+        return {
+            "message": "Welcome to FastAPI (factory) mounted in PyServe!",
+            "debug": debug,
+            "config": kwargs,
+        }
+
+    @application.get("/health")
+    async def factory_health():
+        return {"status": "healthy", "app": "fastapi-factory", "debug": debug}
+
+    @application.get("/echo/{message}")
+    async def echo(message: str):
+        return {"echo": message}
+
+    return application
+
+
+if __name__ == "__main__":
+    import uvicorn
+    uvicorn.run(app, host="0.0.0.0", port=8001)