How to access NodeJS KeepAlive

[markfermor]

I'm not sure how or if it's even possible to use https://nodejs.org/docs/latest-v8.x/api/http.html#http_request_setsocketkeepalive_enable_initialdelay

I'm interested in being able to do something like

    if (req.headers['via'].incudes('random')) {
      req.setSocketKeepAlive(true, 1000)
    }

The point being I'd like to be able to change the HTTP Keep Alive behaviour per request based on the content of the request being sent. Obviously the above doesn't work, is there a way to do it?

I can use https://nodejs.org/docs/latest-v8.x/api/http.html#http_server_keepalivetimeout as a setting for any/all requests, but I'm wondering if I don't have to do that, and could instead do it on a per request basis?

[dougwilson]

It doesn't looks like this is possible to do in Node.js. Express just uses the Node.js HTTP server so is limited by what it allows you to do. The "req" object is https://nodejs.org/docs/latest-v8.x/api/http.html#http_class_http_incomingmessage and the "res" object is https://nodejs.org/docs/latest-v8.x/api/http.html#http_class_http_serverresponse

[dougwilson]

Actually from the Node.js docs, looks like it is "req.socket.setKeepAlive()"

[markfermor]

ahh that's beautiful. I've been trying to understand how it works/all links together. That solves it I think.
Many Thanks