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fix: negotiate protocol version in handler (#930)

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* fix: negotiate protocol version in handler (fixes #916)

* fix: use server pinned version as fallback in default initialize handler
This commit is contained in:
actsalan 2026-06-29 10:29:06 -07:00 • committed by GitHub
commit 80a74795e9
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1 changed files with 247 additions and 6 deletions
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10
crates/rmcp/src/handler/server.rs
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@ -7,6 +7,7 @@ use crate::{
model::{TaskSupport, *},
service::{
MaybeSendFuture, NotificationContext, RequestContext, RoleServer, Service, ServiceRole,
negotiate_protocol_version,
},
};
@ -202,8 +203,13 @@ macro_rules! server_handler_methods {
request: InitializeRequestParams,
context: RequestContext<RoleServer>,
) -> impl Future<Output = Result<InitializeResult, McpError>> + MaybeSendFuture + '_ {
context.peer.set_peer_info(request);
std::future::ready(Ok(self.get_info()))
context.peer.set_peer_info(request.clone());
let mut info = self.get_info();
info.protocol_version = negotiate_protocol_version(
&request.protocol_version,
info.protocol_version,
);
std::future::ready(Ok(info))
}
fn complete(
&self,