HTTP3 via SOCKS5 UDP Example

An example on how to do an HTTP3 request via a SOCKS5 UDP proxy.

HTTP/3 uses UDP instead of TCP at the transport layer, which requires SOCKS5 UDP support, a feature not widely available in standard HTTP client libraries. This tool bridges that gap by:

• Implementing SOCKS5 UDP association
• Handling QUIC/HTTP3 connections over the proxy
• Providing a simple CLI interface

Usage

  -body string
        optional request body
  -h string
        proxy host with port, i.e. host:port (default "socks.pr.oxylabs.io:7777")
  -p string
        proxy password
  -t string
        target host (default "echo-udp.oxylabs.io")
  -u string
        proxy username

i.e.

./http3viasocks5udp -h <proxy-host:port> -u <username> -p <password> -t <target-host>

real params example:

./http3viasocks5udp -h socks.pr.oxylabs.io:7777 -u myproxyusername -p myproxypassword -t echo-udp.oxylabs.io -body "Hello HTTP3"

Installation

Clone and build the tool:

git clone https://github.com/oxylabs/gohttp3viaSOCKS5UDP.git
cd gohttp3viaSOCKS5UDP
go build -o http3viasocks5udp .

Or download a pre-built binary from the releases page.

Integration

For programmatic usage, refer to main.go for implementation details on:

• Setting up SOCKS5 UDP dialers
• Configuring HTTP/3 transport
• Handling authentication