from typing import Any

from mcp import Client

from mcp.server import Server, ServerRequestContext

from mcp.types import ListResourcesResult, PaginatedRequestParams, Resource

BOOKS = [f"book-{n}" for n in range(1, 101)]

PAGE_SIZE = 10

async def list_books(ctx: ServerRequestContext[Any], params: PaginatedRequestParams | None) -> ListResourcesResult:

start = 0 if params is None or params.cursor is None else int(params.cursor)

end = start + PAGE_SIZE

page = [Resource(uri=f"books://catalog/{name}", name=name) for name in BOOKS[start:end]]

next_cursor = str(end) if end < len(BOOKS) else None

return ListResourcesResult(resources=page, next_cursor=next_cursor)

server = Server("Bookshop", on_list_resources=list_books)

async def main() -> None:

async with Client(server) as client:

resources: list[Resource] = []

cursor: str | None = None

while True:

page = await client.list_resources(cursor=cursor)

resources.extend(page.resources)

if page.next_cursor is None:

break

cursor = page.next_cursor

print(f"{len(resources)} resources")