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refactor: split RequestContext between server and client (#1987)

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Marcelo Trylesinski 2026-02-03 14:35:07 +01:00 • committed by GitHub
commit b1f7eec3cd
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1 changed files with 210 additions and 212 deletions
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README.v2.md
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@ -229,7 +229,6 @@ from contextlib import asynccontextmanager
from dataclasses import dataclass
from mcp.server.mcpserver import Context, MCPServer
from mcp.server.session import ServerSession
# Mock database class for example
@ -275,7 +274,7 @@ mcp = MCPServer("My App", lifespan=app_lifespan)
# Access type-safe lifespan context in tools
@mcp.tool()
def query_db(ctx: Context[ServerSession, AppContext]) -> str:
def query_db(ctx: Context[AppContext]) -> str:
"""Tool that uses initialized resources."""
db = ctx.request_context.lifespan_context.db
return db.query()
@ -2135,7 +2134,7 @@ server_params = StdioServerParameters(
# Optional: create a sampling callback
async def handle_sampling_message(
context: RequestContext[ClientSession, None], params: types.CreateMessageRequestParams
context: RequestContext[ClientSession], params: types.CreateMessageRequestParams
) -> types.CreateMessageResult:
print(f"Sampling request: {params.messages}")
return types.CreateMessageResult(