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The XY Problem http://www.perlmonks.org/index.pl?node_id=542341

I wouldn't. I'd make a HTTP call to the server, and let the server handle it. (i.e. your "what's so different from the backend method")?

Yep, and i wrote about differences to such approach in the post. Don't get me wrong, this is definitely a hack, I'm not saying people should stop doing it the old way.

Likewise. While I appreciate the concept of a bridge (I'm a strong believer that the fastest app is the app that does practically nothing at all, and I can see the benefit of using a TCP-bridge like thing to make something faster), I just think we should not be reinventing the wheel.

That is to say, if you need a TCP connection to any server, you probably should not be implementing it over HTTP (well, this is where definitions get difficult, since you know, HTTP is technically TCP. Fuck)

REST is far more appropriate for databases.

Pub/sub is well catered for by socket.io (websockets).

This glue belongs on the server.

If I did need arbitrary TCP connections my first thought would be a websocket proxy...