`fastmcp.server.middleware.ping`

Ping middleware for keeping client connections alive.

Classes

`PingMiddleware`

Middleware that sends periodic pings to keep client connections alive. Starts a background ping task on first message from each session. The task sends server-to-client pings at the configured interval until the session ends. Methods:

`on_message`

on_message(self, context: MiddlewareContext, call_next: CallNext) -> Any

Start ping task on first message from a connection.

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