asgi/wsgi mounting implemented
This commit is contained in:
Илья Глазунов
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"""Example applications package."""
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"""
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Example custom ASGI application for PyServe ASGI mounting.
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This demonstrates how to create a raw ASGI application without
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any framework - similar to Python's http.server but async.
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"""
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from typing import Dict, Any, List, Callable, Awaitable, Optional
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import json
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Scope = Dict[str, Any]
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Receive = Callable[[], Awaitable[Dict[str, Any]]]
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Send = Callable[[Dict[str, Any]], Awaitable[None]]
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class SimpleASGIApp:
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def __init__(self):
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self.routes: Dict[str, Callable] = {}
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self._setup_routes()
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def _setup_routes(self) -> None:
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self.routes = {
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"/": self._handle_root,
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"/health": self._handle_health,
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"/echo": self._handle_echo,
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"/info": self._handle_info,
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"/headers": self._handle_headers,
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}
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async def __call__(self, scope: Scope, receive: Receive, send: Send) -> None:
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if scope["type"] != "http":
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return
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path = scope.get("path", "/")
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method = scope.get("method", "GET")
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handler = self.routes.get(path)
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if handler is None:
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if path.startswith("/echo/"):
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handler = self._handle_echo_path
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else:
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await self._send_response(
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send,
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status=404,
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body={"error": "Not found", "path": path}
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)
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return
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await handler(scope, receive, send)
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async def _handle_root(self, scope: Scope, receive: Receive, send: Send) -> None:
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await self._send_response(
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send,
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body={
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"message": "Welcome to Custom ASGI App mounted in PyServe!",
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"description": "This is a raw ASGI application without any framework",
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"endpoints": list(self.routes.keys()) + ["/echo/{message}"],
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}
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)
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async def _handle_health(self, scope: Scope, receive: Receive, send: Send) -> None:
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await self._send_response(
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send,
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body={"status": "healthy", "app": "custom-asgi"}
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)
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async def _handle_echo(self, scope: Scope, receive: Receive, send: Send) -> None:
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method = scope.get("method", "GET")
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if method == "POST":
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body = await self._read_body(receive)
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await self._send_response(
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send,
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body={"echo": body.decode("utf-8") if body else ""}
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)
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else:
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await self._send_response(
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send,
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body={"message": "Send a POST request to echo data"}
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)
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async def _handle_echo_path(self, scope: Scope, receive: Receive, send: Send) -> None:
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path = scope.get("path", "")
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message = path.replace("/echo/", "", 1)
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await self._send_response(
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send,
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body={"echo": message}
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)
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async def _handle_info(self, scope: Scope, receive: Receive, send: Send) -> None:
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await self._send_response(
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send,
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body={
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"method": scope.get("method"),
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"path": scope.get("path"),
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"query_string": scope.get("query_string", b"").decode("utf-8"),
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"root_path": scope.get("root_path", ""),
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"scheme": scope.get("scheme", "http"),
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"server": list(scope.get("server", ())),
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"asgi": scope.get("asgi", {}),
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}
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)
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async def _handle_headers(self, scope: Scope, receive: Receive, send: Send) -> None:
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headers = {}
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for name, value in scope.get("headers", []):
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headers[name.decode("utf-8")] = value.decode("utf-8")
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await self._send_response(
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send,
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body={"headers": headers}
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)
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async def _read_body(self, receive: Receive) -> bytes:
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body = b""
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more_body = True
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while more_body:
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message = await receive()
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body += message.get("body", b"")
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more_body = message.get("more_body", False)
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return body
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async def _send_response(
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self,
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send: Send,
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status: int = 200,
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body: Any = None,
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content_type: str = "application/json",
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headers: Optional[List[tuple]] = None,
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) -> None:
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response_headers = [
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(b"content-type", content_type.encode("utf-8")),
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]
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if headers:
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response_headers.extend(headers)
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if body is not None:
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if content_type == "application/json":
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body_bytes = json.dumps(body, ensure_ascii=False).encode("utf-8")
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elif isinstance(body, bytes):
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body_bytes = body
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else:
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body_bytes = str(body).encode("utf-8")
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else:
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body_bytes = b""
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response_headers.append(
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(b"content-length", str(len(body_bytes)).encode("utf-8"))
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)
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await send({
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"type": "http.response.start",
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"status": status,
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"headers": response_headers,
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})
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await send({
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"type": "http.response.body",
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"body": body_bytes,
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})
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app = SimpleASGIApp()
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async def simple_asgi_app(scope: Scope, receive: Receive, send: Send) -> None:
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if scope["type"] != "http":
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return
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response_body = json.dumps({
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"message": "Hello from minimal ASGI app!",
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"path": scope.get("path", "/"),
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}).encode("utf-8")
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await send({
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"type": "http.response.start",
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"status": 200,
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"headers": [
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(b"content-type", b"application/json"),
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(b"content-length", str(len(response_body)).encode("utf-8")),
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],
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})
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await send({
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"type": "http.response.body",
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"body": response_body,
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})
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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=8004)
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@@ -0,0 +1,118 @@
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"""
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Example FastAPI application for PyServe ASGI mounting.
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This demonstrates how to create a FastAPI application that can be
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mounted at a specific path in PyServe.
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"""
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from typing import Optional, Dict, Any
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try:
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from fastapi import FastAPI, HTTPException
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from fastapi.responses import JSONResponse
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from pydantic import BaseModel
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except ImportError:
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raise ImportError(
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"FastAPI is not installed. Install with: pip install fastapi"
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)
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app = FastAPI(
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title="Example FastAPI App",
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description="This is an example FastAPI application mounted in PyServe",
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version="1.0.0",
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)
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class Item(BaseModel):
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name: str
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description: Optional[str] = None
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price: float
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tax: Optional[float] = None
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class Message(BaseModel):
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message: str
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items_db: Dict[int, Dict[str, Any]] = {
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1: {"name": "Item 1", "description": "First item", "price": 10.5, "tax": 1.05},
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2: {"name": "Item 2", "description": "Second item", "price": 20.0, "tax": 2.0},
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}
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@app.get("/")
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async def root():
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return {"message": "Welcome to FastAPI mounted in PyServe!"}
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@app.get("/health")
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async def health_check():
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return {"status": "healthy", "app": "fastapi"}
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@app.get("/items")
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async def list_items():
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return {"items": list(items_db.values()), "count": len(items_db)}
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@app.get("/items/{item_id}")
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async def get_item(item_id: int):
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if item_id not in items_db:
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raise HTTPException(status_code=404, detail="Item not found")
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return items_db[item_id]
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@app.post("/items", response_model=Message)
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async def create_item(item: Item):
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new_id = max(items_db.keys()) + 1 if items_db else 1
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items_db[new_id] = item.model_dump()
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return {"message": f"Item created with ID {new_id}"}
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@app.put("/items/{item_id}")
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async def update_item(item_id: int, item: Item):
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if item_id not in items_db:
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raise HTTPException(status_code=404, detail="Item not found")
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items_db[item_id] = item.model_dump()
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return {"message": f"Item {item_id} updated"}
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@app.delete("/items/{item_id}")
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async def delete_item(item_id: int):
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if item_id not in items_db:
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raise HTTPException(status_code=404, detail="Item not found")
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del items_db[item_id]
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return {"message": f"Item {item_id} deleted"}
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def create_app(debug: bool = False, **kwargs) -> FastAPI:
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application = FastAPI(
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title="Example FastAPI App (Factory)",
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description="FastAPI application created via factory function",
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version="2.0.0",
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debug=debug,
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)
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@application.get("/")
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async def factory_root():
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return {
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"message": "Welcome to FastAPI (factory) mounted in PyServe!",
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"debug": debug,
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"config": kwargs,
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}
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@application.get("/health")
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async def factory_health():
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return {"status": "healthy", "app": "fastapi-factory", "debug": debug}
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@application.get("/echo/{message}")
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async def echo(message: str):
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return {"echo": message}
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return application
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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=8001)
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@@ -0,0 +1,112 @@
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"""
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Example Flask application for PyServe ASGI mounting.
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This demonstrates how to create a Flask application that can be
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mounted at a specific path in PyServe (via WSGI-to-ASGI adapter).
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"""
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from typing import Optional
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try:
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from flask import Flask, jsonify, request
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except ImportError:
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raise ImportError(
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"Flask is not installed. Install with: pip install flask"
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)
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app = Flask(__name__)
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users_db = {
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1: {"id": 1, "name": "Alice", "email": "alice@example.com"},
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2: {"id": 2, "name": "Bob", "email": "bob@example.com"},
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}
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@app.route("/")
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def root():
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return jsonify({"message": "Welcome to Flask mounted in PyServe!"})
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@app.route("/health")
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def health_check():
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return jsonify({"status": "healthy", "app": "flask"})
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@app.route("/users")
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def list_users():
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return jsonify({"users": list(users_db.values()), "count": len(users_db)})
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@app.route("/users/<int:user_id>")
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def get_user(user_id: int):
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if user_id not in users_db:
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return jsonify({"error": "User not found"}), 404
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return jsonify(users_db[user_id])
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@app.route("/users", methods=["POST"])
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def create_user():
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data = request.get_json()
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if not data or "name" not in data:
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return jsonify({"error": "Name is required"}), 400
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new_id = max(users_db.keys()) + 1 if users_db else 1
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users_db[new_id] = {
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"id": new_id,
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"name": data["name"],
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"email": data.get("email", ""),
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}
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return jsonify({"message": f"User created with ID {new_id}", "user": users_db[new_id]}), 201
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@app.route("/users/<int:user_id>", methods=["PUT"])
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def update_user(user_id: int):
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if user_id not in users_db:
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return jsonify({"error": "User not found"}), 404
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data = request.get_json()
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if data:
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if "name" in data:
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users_db[user_id]["name"] = data["name"]
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if "email" in data:
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users_db[user_id]["email"] = data["email"]
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return jsonify({"message": f"User {user_id} updated", "user": users_db[user_id]})
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@app.route("/users/<int:user_id>", methods=["DELETE"])
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def delete_user(user_id: int):
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if user_id not in users_db:
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return jsonify({"error": "User not found"}), 404
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del users_db[user_id]
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return jsonify({"message": f"User {user_id} deleted"})
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def create_app(config: Optional[dict] = None) -> Flask:
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application = Flask(__name__)
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|
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if config:
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application.config.update(config)
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@application.route("/")
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def factory_root():
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return jsonify({
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"message": "Welcome to Flask (factory) mounted in PyServe!",
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"config": config or {},
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})
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@application.route("/health")
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def factory_health():
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return jsonify({"status": "healthy", "app": "flask-factory"})
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@application.route("/echo/<message>")
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def echo(message: str):
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return jsonify({"echo": message})
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return application
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if __name__ == "__main__":
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app.run(host="0.0.0.0", port=8002, debug=True)
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@@ -0,0 +1,112 @@
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"""
|
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Example Starlette application for PyServe ASGI mounting.
|
||||
|
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This demonstrates how to create a Starlette application that can be
|
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mounted at a specific path in PyServe.
|
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"""
|
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|
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try:
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from starlette.applications import Starlette
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from starlette.responses import JSONResponse
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from starlette.routing import Route
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from starlette.requests import Request
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except ImportError:
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raise ImportError(
|
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"Starlette is not installed. Install with: pip install starlette"
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)
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tasks_db = {
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1: {"id": 1, "title": "Task 1", "completed": False},
|
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2: {"id": 2, "title": "Task 2", "completed": True},
|
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}
|
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async def homepage(request: Request) -> JSONResponse:
|
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return JSONResponse({
|
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"message": "Welcome to Starlette mounted in PyServe!"
|
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})
|
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|
||||
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async def health_check(request: Request) -> JSONResponse:
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return JSONResponse({"status": "healthy", "app": "starlette"})
|
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|
||||
|
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async def list_tasks(request: Request) -> JSONResponse:
|
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return JSONResponse({
|
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"tasks": list(tasks_db.values()),
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"count": len(tasks_db)
|
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})
|
||||
|
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async def get_task(request: Request) -> JSONResponse:
|
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task_id = int(request.path_params["task_id"])
|
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if task_id not in tasks_db:
|
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return JSONResponse({"error": "Task not found"}, status_code=404)
|
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return JSONResponse(tasks_db[task_id])
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|
||||
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async def create_task(request: Request) -> JSONResponse:
|
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data = await request.json()
|
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if not data or "title" not in data:
|
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return JSONResponse({"error": "Title is required"}, status_code=400)
|
||||
|
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new_id = max(tasks_db.keys()) + 1 if tasks_db else 1
|
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tasks_db[new_id] = {
|
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"id": new_id,
|
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"title": data["title"],
|
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"completed": data.get("completed", False),
|
||||
}
|
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return JSONResponse(
|
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{"message": f"Task created with ID {new_id}", "task": tasks_db[new_id]},
|
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status_code=201
|
||||
)
|
||||
|
||||
|
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async def update_task(request: Request) -> JSONResponse:
|
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task_id = int(request.path_params["task_id"])
|
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if task_id not in tasks_db:
|
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return JSONResponse({"error": "Task not found"}, status_code=404)
|
||||
|
||||
data = await request.json()
|
||||
if data:
|
||||
if "title" in data:
|
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tasks_db[task_id]["title"] = data["title"]
|
||||
if "completed" in data:
|
||||
tasks_db[task_id]["completed"] = data["completed"]
|
||||
|
||||
return JSONResponse({
|
||||
"message": f"Task {task_id} updated",
|
||||
"task": tasks_db[task_id]
|
||||
})
|
||||
|
||||
|
||||
async def delete_task(request: Request) -> JSONResponse:
|
||||
task_id = int(request.path_params["task_id"])
|
||||
if task_id not in tasks_db:
|
||||
return JSONResponse({"error": "Task not found"}, status_code=404)
|
||||
|
||||
del tasks_db[task_id]
|
||||
return JSONResponse({"message": f"Task {task_id} deleted"})
|
||||
|
||||
|
||||
routes = [
|
||||
Route("/", homepage),
|
||||
Route("/health", health_check),
|
||||
Route("/tasks", list_tasks, methods=["GET"]),
|
||||
Route("/tasks", create_task, methods=["POST"]),
|
||||
Route("/tasks/{task_id:int}", get_task, methods=["GET"]),
|
||||
Route("/tasks/{task_id:int}", update_task, methods=["PUT"]),
|
||||
Route("/tasks/{task_id:int}", delete_task, methods=["DELETE"]),
|
||||
]
|
||||
|
||||
app = Starlette(debug=True, routes=routes)
|
||||
|
||||
|
||||
def create_app(debug: bool = False) -> Starlette:
|
||||
return Starlette(debug=debug, routes=routes)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
import uvicorn
|
||||
uvicorn.run(app, host="0.0.0.0", port=8003)
|
||||
@@ -0,0 +1,103 @@
|
||||
# Example configuration for ASGI application mounts
|
||||
# This demonstrates how to mount various Python web frameworks
|
||||
|
||||
http:
|
||||
static_dir: ./static
|
||||
templates_dir: ./templates
|
||||
|
||||
server:
|
||||
host: 0.0.0.0
|
||||
port: 8080
|
||||
backlog: 5
|
||||
proxy_timeout: 30.0
|
||||
|
||||
logging:
|
||||
level: DEBUG
|
||||
console_output: true
|
||||
format:
|
||||
type: standard
|
||||
use_colors: true
|
||||
|
||||
extensions:
|
||||
# ASGI Application Mount Extension
|
||||
- type: asgi
|
||||
config:
|
||||
mounts:
|
||||
# FastAPI application
|
||||
- path: "/api"
|
||||
app_path: "examples.apps.fastapi_app:app"
|
||||
app_type: asgi
|
||||
name: "fastapi-api"
|
||||
strip_path: true
|
||||
|
||||
# FastAPI with factory pattern
|
||||
- path: "/api/v2"
|
||||
app_path: "examples.apps.fastapi_app:create_app"
|
||||
app_type: asgi
|
||||
factory: true
|
||||
factory_args:
|
||||
debug: true
|
||||
name: "fastapi-api-v2"
|
||||
strip_path: true
|
||||
|
||||
# Flask application (WSGI wrapped to ASGI)
|
||||
- path: "/flask"
|
||||
app_path: "examples.apps.flask_app:app"
|
||||
app_type: wsgi
|
||||
name: "flask-app"
|
||||
strip_path: true
|
||||
|
||||
# Flask with factory pattern
|
||||
- path: "/flask-v2"
|
||||
app_path: "examples.apps.flask_app:create_app"
|
||||
app_type: wsgi
|
||||
factory: true
|
||||
name: "flask-app-factory"
|
||||
strip_path: true
|
||||
|
||||
# Django application
|
||||
# Uncomment and configure for your Django project
|
||||
# - path: "/django"
|
||||
# django_settings: "myproject.settings"
|
||||
# module_path: "/path/to/django/project"
|
||||
# name: "django-app"
|
||||
# strip_path: true
|
||||
|
||||
# Starlette application
|
||||
- path: "/starlette"
|
||||
app_path: "examples.apps.starlette_app:app"
|
||||
app_type: asgi
|
||||
name: "starlette-app"
|
||||
strip_path: true
|
||||
|
||||
# Custom ASGI application (http.server style)
|
||||
- path: "/custom"
|
||||
app_path: "examples.apps.custom_asgi:app"
|
||||
app_type: asgi
|
||||
name: "custom-asgi"
|
||||
strip_path: true
|
||||
|
||||
# Standard routing for other paths
|
||||
- type: routing
|
||||
config:
|
||||
regex_locations:
|
||||
# Health check
|
||||
"=/health":
|
||||
return: "200 OK"
|
||||
content_type: "text/plain"
|
||||
|
||||
# Static files
|
||||
"~*\\.(js|css|png|jpg|gif|ico|svg|woff2?)$":
|
||||
root: "./static"
|
||||
cache_control: "public, max-age=31536000"
|
||||
|
||||
# Root path
|
||||
"=/":
|
||||
root: "./static"
|
||||
index_file: "index.html"
|
||||
|
||||
# Default fallback
|
||||
"__default__":
|
||||
spa_fallback: true
|
||||
root: "./static"
|
||||
index_file: "index.html"
|
||||
Reference in New Issue
Block a user