pyserveX/examples/apps/starlette_app.py
2025-12-03 12:10:28 +03:00

113 lines
3.2 KiB
Python

"""
Example Starlette application for PyServe ASGI mounting.
This demonstrates how to create a Starlette application that can be
mounted at a specific path in PyServe.
"""
try:
from starlette.applications import Starlette
from starlette.responses import JSONResponse
from starlette.routing import Route
from starlette.requests import Request
except ImportError:
raise ImportError(
"Starlette is not installed. Install with: pip install starlette"
)
tasks_db = {
1: {"id": 1, "title": "Task 1", "completed": False},
2: {"id": 2, "title": "Task 2", "completed": True},
}
async def homepage(request: Request) -> JSONResponse:
return JSONResponse({
"message": "Welcome to Starlette mounted in PyServe!"
})
async def health_check(request: Request) -> JSONResponse:
return JSONResponse({"status": "healthy", "app": "starlette"})
async def list_tasks(request: Request) -> JSONResponse:
return JSONResponse({
"tasks": list(tasks_db.values()),
"count": len(tasks_db)
})
async def get_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)
return JSONResponse(tasks_db[task_id])
async def create_task(request: Request) -> JSONResponse:
data = await request.json()
if not data or "title" not in data:
return JSONResponse({"error": "Title is required"}, status_code=400)
new_id = max(tasks_db.keys()) + 1 if tasks_db else 1
tasks_db[new_id] = {
"id": new_id,
"title": data["title"],
"completed": data.get("completed", False),
}
return JSONResponse(
{"message": f"Task created with ID {new_id}", "task": tasks_db[new_id]},
status_code=201
)
async def update_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)
data = await request.json()
if data:
if "title" in data:
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)