Max Isbey
39 lines
1.1 KiB
Python
39 lines
1.1 KiB
Python
"""
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Example of implementing pagination with MCP server decorators.
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"""
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from pydantic import AnyUrl
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import mcp.types as types
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from mcp.server.lowlevel import Server
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# Initialize the server
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server = Server("paginated-server")
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# Sample data to paginate
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ITEMS = [f"Item {i}" for i in range(1, 101)] # 100 items
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@server.list_resources()
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async def list_resources_paginated(request: types.ListResourcesRequest) -> types.ListResourcesResult:
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"""List resources with pagination support."""
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page_size = 10
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# Extract cursor from request params
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cursor = request.params.cursor if request.params is not None else None
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# Parse cursor to get offset
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start = 0 if cursor is None else int(cursor)
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end = start + page_size
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# Get page of resources
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page_items = [
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types.Resource(uri=AnyUrl(f"resource://items/{item}"), name=item, description=f"Description for {item}")
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for item in ITEMS[start:end]
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]
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# Determine next cursor
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next_cursor = str(end) if end < len(ITEMS) else None
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return types.ListResourcesResult(resources=page_items, nextCursor=next_cursor)
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