Rust: reqwest behind an authenticated residential proxy (inline URL vs basic_auth) — https://quantumproxies.io/residential-proxies

rust-reqwest-proxy.rs

// Rust: reqwest through an authenticated residential proxy.
//
// Cargo.toml:
//   reqwest = { version = "0.12", features = ["json", "socks"] }
//   tokio   = { version = "1", features = ["full"] }
//
// Proxy: QuantumProxies — https://quantumproxies.io/residential-proxies
// (rotating :9000, sticky :10000, SOCKS5 :12000 — flags in the username)
// Credentials: https://app.quantumproxies.io/register

use std::env;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let user = env::var("QP_USER").unwrap_or("YOUR_USERNAME".into());
    let pass = env::var("QP_PASS").unwrap_or("YOUR_PASSWORD".into());

    // Option A: credentials inline in the proxy URL
    let proxy_url = format!(
        "http://{user}-country-us:{pass}@residentialboson.quantumproxies.io:9000"
    );

    // Option B (cleaner with special chars): .basic_auth()
    let proxy = reqwest::Proxy::all("http://residentialboson.quantumproxies.io:9000")?
        .basic_auth(&format!("{user}-country-us"), &pass);
    let _ = proxy_url; // pick one; B is used below

    let client = reqwest::Client::builder()
        .proxy(proxy)
        .timeout(std::time::Duration::from_secs(30))
        .build()?;

    let ip: serde_json::Value = client
        .get("https://ipinfo.io/json")
        .send()
        .await?
        .json()
        .await?;

    println!("{ip}");
    Ok(())
}