美国代理：住宅和数据中心代理

import requests

# Rola-IP US Residential Proxy Configuration
# Auth format: customer-{username}:{password}@{host}:{port}
proxy_url = "http://customer-{username}-cc-US:{password}@res.rola-ip.co:8080"

proxies = {
    "http": proxy_url,
    "https": proxy_url
}

# Target: scrape US-localized content (e.g. Amazon US / Google US SERP)
response = requests.get(
    "https://api.ipify.org?format=json",  # verify exit IP
    proxies=proxies,
    timeout=30
)

print(f"US Proxy IP: {response.json()['ip']}")
print(f"Status: {response.status_code}")

# Production: persistent session for large-scale data collection
session = requests.Session()
session.proxies = proxies
session.headers.update({
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36"
})

# City-level targeting — Los Angeles exit
# proxy_url = "http://customer-{username}-cc-US-city-losangeles:{password}@res.rola-ip.co:8080"

# Basic connectivity test
curl -x "http://customer-{username}-cc-US:{password}@res.rola-ip.co:8080" \
     https://api.ipify.org?format=json

# City-level targeting — Los Angeles, CA
curl -x "http://customer-{username}-cc-US-city-losangeles:{password}@res.rola-ip.co:8080" \
     -H "User-Agent: Mozilla/5.0" \
     https://httpbin.org/ip

# SOCKS5 protocol
curl -x "socks5://customer-{username}-cc-US:{password}@res.rola-ip.co:1080" \
     https://api.ipify.org?format=json

# Large-scale — rotate IPs across 10 concurrent requests
for i in {1..10}; do
  curl -s -x "http://customer-{username}-cc-US:{password}@res.rola-ip.co:8080" \
       https://api.ipify.org?format=json &
done
wait