Add heartbeat

2026-02-12 21:59:47 +01:00
parent 28169f48bc
commit 58d09ebc35
3 changed files with 38 additions and 0 deletions
--- a/mcpServer/modules/filesystem/index.ts
+++ b/mcpServer/modules/filesystem/index.ts
@@ -633,6 +633,20 @@ function runServer() {
        transport.onclose = () => {
          sseTransportsBySessionId.delete(transport.sessionId);
        };
+        // SSE heartbeat to prevent client ReadTimeout during idle (e.g. while waiting for Ollama)
+        const heartbeatIntervalMs = 15_000;
+        const heartbeatInterval = setInterval(() => {
+          try {
+            if (!res.writableEnded) {
+              res.write(': heartbeat\n\n');
+            } else {
+              clearInterval(heartbeatInterval);
+            }
+          } catch {
+            clearInterval(heartbeatInterval);
+          }
+        }, heartbeatIntervalMs);
+        res.on('close', () => clearInterval(heartbeatInterval));
        await server.connect(transport);
        console.error("Secure MCP Filesystem Server: new SSE client connected");
      } catch (error) {