Can't make timeout work

[tamis-laan]

I'm doing a request with httpx that returns:
httpx.ConnectTimeout
I waits 20 seconds for this. And I want to make it shorter, i.e. 2 seconds for example so I do:

httpx.AsyncClient(timeout = httpx.Timeout(2.0, connect=2.0))

But still it takes 20 seconds, am I doing something wrong here?

[bad-antics]

The 20-second delay you're seeing might be DNS resolution, which isn't covered by connect timeout.

Try this:

import httpx

client = httpx.AsyncClient(
    timeout=httpx.Timeout(
        connect=2.0,    # TCP connection timeout
        read=2.0,       # Response read timeout  
        write=2.0,      # Request write timeout
        pool=2.0        # Pool connection timeout
    )
)

But DNS resolution is separate!

If the delay is from DNS, try:

import socket

# Set global DNS timeout
socket.setdefaulttimeout(2.0)

# Or use a custom transport with limits
import httpx

limits = httpx.Limits(max_connections=10, max_keepalive_connections=5)
client = httpx.AsyncClient(limits=limits, timeout=2.0)

Debugging tips:

1. Time each phase separately
2. Check if the target host is reachable
3. Try with IP instead of hostname to bypass DNS

import time
start = time.time()
try:
    socket.create_connection(("hostname", 80), timeout=2)
except:
    pass
print(f"TCP connect: {time.time()-start}s")

What's the target URL? Could be the server itself being slow to respond.

[bad-antics]

The 20-second delay you're seeing might be DNS resolution, which isn't covered by connect timeout.

Try this:

import httpx

client = httpx.AsyncClient(
    timeout=httpx.Timeout(
        connect=2.0,    # TCP connection timeout
        read=2.0,       # Response read timeout  
        write=2.0,      # Request write timeout
        pool=2.0        # Pool connection timeout
    )
)

But DNS resolution is separate!

If the delay is from DNS, try:

import socket

# Set global DNS timeout
socket.setdefaulttimeout(2.0)

# Or use a custom transport with limits
import httpx

limits = httpx.Limits(max_connections=10, max_keepalive_connections=5)
client = httpx.AsyncClient(limits=limits, timeout=2.0)

Debugging tips:

1. Time each phase separately
2. Check if the target host is reachable
3. Try with IP instead of hostname to bypass DNS

import time
start = time.time()
try:
    socket.create_connection(("hostname", 80), timeout=2)
except:
    pass
print(f"TCP connect: {time.time()-start}s")

What's the target URL? Could be the server itself being slow to respond.

[dogancanbakir]

This repo is ProjectDiscovery's httpx, a Go HTTP toolkit. httpx.AsyncClient and httpx.Timeout are from the Python library of the same name; please ask at https://github.com/encode/httpx. Closing here.