Express: fine tuning with keepAliveTimeout and res.end

[nigrosimone]

expressjs/perf-wg#21

[waghanza]

Thanks for this 🎉

Could you please explain the differences between send and end ?

Please notice also that this project is not about performance only, but show indicators for each framework (performance is one of them, but not the only one)

[nigrosimone]

res.end() is low-level http.ServerResponse method, ends the response as-is, with no extra logic (minimal overhead).

res.send() Is an Express helper

Adds a lot of convenience:

• Automatically sets Content-Type
• Serializes objects to JSON
• Sets Content-Length
• Handles default status codes
• Ends the response for you

[waghanza]

Then I think we should keep send.

Indeed, send seems more accurate that end on production builds.

[nigrosimone]

Indeed, send seems more accurate that end on production builds.

Yep, if the goal is not to achieve maximum performance, res.send() it is more correct