How to Create a Go SOCKS5 Proxy Client?

Creating a Go SOCKS5 Proxy Client

Need help setting up a SOCKS5 client in Go? This detailed guide will provide you with step-by-step instructions.

Understanding the SOCKS5 Function

The proxy.SOCKS5() function creates a SOCKS5 proxy dialer. Its syntax is:

func SOCKS5(network, addr string, auth *Auth, forward Dialer) (Dialer, error)

Parameters:

• network: The network type, typically "tcp" or "udp".
• addr: The SOCKS5 proxy address in the format "host:port".
• auth: An optional authentication method for connecting to the proxy.
• forward: A custom dialer to use for all SOCKS5 connections. This is advanced usage.

Return Value:

• A Dialer that can be used to create connections through the SOCKS5 proxy.

Setting Up Your Client

To set up a SOCKS5 client in Go, follow these steps:

1. Import the proxy package:

import (
    "log"
    "net/http"
    "net/http/proxy"
)

2. Configure the proxy dialer using the SOCKS5() function:

dialSocksProxy, err := proxy.SOCKS5("tcp", "proxy_ip", nil, proxy.Direct)
if err != nil {
    log.Fatalf("Error connecting to proxy: %v", err)
}

3. Create a custom http.Transport that uses the proxy dialer:

tr := &http.Transport{
    Dial: dialSocksProxy.Dial,
}

4. Create an http.Client that uses the custom transport:

myClient := &http.Client{
    Transport: tr,
}

Now, the myClient can be used to make HTTP requests through the SOCKS5 proxy.

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