Why resolve hostname -> IP through a connect rather than DNS?

[tgwizard]

Thank you for this library, it looks almost exactly like what I need.

In

httpx-secure/httpx_secure/__init__.py

Lines 125 to 137 in 57ca973

	async def _resolve(self, request: Request, hostname: str, port: int) -> str:
	try:
	with fail_after(self.connect_timeout):
	async with await connect_tcp(
	hostname,
	port,
	happy_eyeballs_delay=self.happy_eyeballs_delay,
	) as stream:
	return stream._raw_socket.getpeername()[0]
	except TimeoutError as e:
	raise ConnectTimeout(str(e), request=request) from e
	except OSError as e:
	raise ConnectError(str(e), request=request) from e

you open a TCP connection to the host just to get the IP. Why not do something like

socket.getaddrinfo(host, port, type=socket.SOCK_STREAM)

to get the IP?

The drawback I see with the connection is that you have to establish a full connection, just to discard it immediately. The benefit of doing a DNS lookup is that you always have to do that anyway, and you can also validate all the IPs that the domain resolves too.

Happy to attempt a PR if you agree.