Struct ProgressNotificationSender 

pub struct ProgressNotificationSender<F>
where
    F: Fn(JsonRpcRequest) + Send + Sync,
{ /* private fields */ }

A notification sender that sends progress notifications via a callback.

This is the server-side implementation used to send notifications back to the client during handler execution. It rejects non-finite numeric fields and serialization failures, and contains callback panics so a reporting failure cannot unwind through the request handler.

The exact-2024 path remains immediate. Final request-owned dispatch can instead install [FinalProgressRuntime] and retain its explicit flush and terminal-finalization primitives in the outer transport owner.

Implementations

impl<F> ProgressNotificationSender<F>

where F: Fn(JsonRpcRequest) + Send + Sync,

pub fn new(marker: ProgressMarker, send_fn: F) -> Self

Creates a new progress notification sender.

pub fn new_final(marker: ProgressMarker, send_fn: F) -> Self

Creates a progress sender for MCP 2026-07-28 handler dispatch.

Calls made through the ordinary ProgressReporter bridge are admitted as exact finite JSON numbers and emitted with FinalProgressNotificationParams. The exact-2024 constructor Self::new deliberately retains its f64 wire model.

pub fn into_reporter(self) -> ProgressReporter

where Self: 'static,

Creates a progress reporter from this sender.

Trait Implementations

impl<F> Debug for ProgressNotificationSender<F>

where F: Fn(JsonRpcRequest) + Send + Sync,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<F> NotificationSender for ProgressNotificationSender<F>

where F: Fn(JsonRpcRequest) + Send + Sync,

fn send_progress_exact( &self, progress: Number, total: Option<Number>, message: Option<&str>, )

Sends one exact-number final progress notification.

fn send_progress( &self, progress: f64, total: Option<f64>, message: Option<&str>, )

Sends a progress notification to the client.

fn send_log(&self, _level: McpLogLevel, _logger: Option<&str>, _data: Value)

Sends one notifications/message log frame to the client.

fn send_catalog_changed(&self, _kind: McpCatalogKind)

Sends one catalog list_changed notification after a session mutation.

fn send_resource_updated(&self, _uri: &str)

Sends notifications/resources/updated for one subscribed URI.