wehub-resource-sync
49b9bb6724
Deploy Docs / deploy-docs (push) Failing after 1s
Conformance Tests / client-conformance (push) Failing after 3s
Conformance Tests / server-conformance (push) Failing after 1s
GitHub Actions Security Analysis / zizmor (push) Failing after 1s
CI / checks (push) Failing after 59m20s
CI / all-green (push) Waiting to run
42 lines
907 B
Python
42 lines
907 B
Python
from collections.abc import AsyncIterator
|
|
from contextlib import asynccontextmanager
|
|
from dataclasses import dataclass
|
|
|
|
from mcp.server import MCPServer
|
|
from mcp.server.mcpserver import Context
|
|
|
|
|
|
class Database:
|
|
@classmethod
|
|
async def connect(cls) -> "Database":
|
|
return cls()
|
|
|
|
async def disconnect(self) -> None: ...
|
|
|
|
def query(self) -> int:
|
|
return 3
|
|
|
|
|
|
@dataclass
|
|
class AppContext:
|
|
db: Database
|
|
|
|
|
|
@asynccontextmanager
|
|
async def app_lifespan(server: MCPServer) -> AsyncIterator[AppContext]:
|
|
db = await Database.connect()
|
|
try:
|
|
yield AppContext(db=db)
|
|
finally:
|
|
await db.disconnect()
|
|
|
|
|
|
mcp = MCPServer("Bookshop", lifespan=app_lifespan)
|
|
|
|
|
|
@mcp.tool()
|
|
def count_books(genre: str, ctx: Context[AppContext]) -> str:
|
|
"""Count the books in a genre."""
|
|
db = ctx.request_context.lifespan_context.db
|
|
return f"{db.query()} books in {genre!r}."
|