add datadog script in all proxies in single attempt

[api_learn]

I have to integrate datadog script in all the APIs, is there any way I can do it in single action rather than changing the each proxy

[dchiesa1]

Sure!

Build your logging logic into a SharedFlow, and then attach that via a FlowHook. 

You can search around for those terms, and you'll get some hints (probably from here and from other places).