the socket rabbit hole

[KJM]

I've tended to use urequests or variants of it for for server connections but I've never been really happy with it. There are some overly long non user adjustable timeouts baked into it & the DNS lookups can be cranky on lte based bearers.

Many examples of connecting to servers tend not to use urequests & show examples based simply on sockets. I tend to disregard them because they don't use ssl. Recently a Freenove example

Code: Select all

connectWifi(ssidRouter,passwordRouter)
s = socket.socket()
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.connect((host,port))

used the socket.SO_REUSEADDR cmd. This was new to me https://stackoverflow.com/questions/322 ... tion-linux & got me wondering how these non urequests based connections convert the server name to an ip address since there is no obvious DNS lookup? Can anyone enlighten me?

[Microprofessor]

I think I feel your pain

I've been trying to get sockets to work the last few days, and it's still a mystery to me. Sorry I can't help you.
The problem I'm currently running into is:

self.serv_soc.setsockopt(usocket.SOL_SOCKET, usocket.SO_REUSEADDR, 1)

AttributeError: 'module' object has no attribute 'SOL_SOCKET'

[Roberthh]

Socket support is incomplete on some ports like rp2040 nano connect. Other ports like the ESP32 or ESP8266 and Pyboard have better coverage.