プロキシロケーションチェッカー：米国都市IPを確認

curl -s --max-time 30 \
  -x http://USERNAME-country-us-state-or-city-portland:[email protected]:7777 \
  https://ipinfo.io/json

import requests

GATEWAY = "gw.metroproxies.com:7777"
USER, PASSWORD = "USERNAME", "PASSWORD"

# (state code, city segment, city name as lookup services usually spell it)
CITIES = [("or", "portland", "Portland"), ("tx", "san_antonio", "San Antonio"), ("fl", "tampa", "Tampa")]


def exit_info(state: str, city: str) -> dict:
    user = f"{USER}-country-us-state-{state}-city-{city}"
    proxy = f"http://{user}:{PASSWORD}@{GATEWAY}"
    with requests.Session() as s:  # a fresh session = a fresh connection = a fresh IP
        r = s.get("https://ipinfo.io/json", proxies={"http": proxy, "https": proxy}, timeout=30)
        r.raise_for_status()
        return r.json()


for state, segment, expected in CITIES:
    try:
        info = exit_info(state, segment)
    except requests.RequestException as e:
        print(f"{segment}: request failed ({e.__class__.__name__}); widen to the state or retry later")
        continue
    city, region, org = info.get("city"), info.get("region"), info.get("org")
    flag = "ok" if city == expected else "check"
    print(f"{segment:12} -> {info.get('ip')}  {city}, {region}  {org}  [{flag}]")

// save as check.mjs, then: npm install undici && node check.mjs
import { ProxyAgent, fetch } from 'undici';

const gateway = 'http://gw.metroproxies.com:7777';
const user = 'USERNAME-country-us-state-co-city-colorado_springs';
const token = 'Basic ' + Buffer.from(`${user}:PASSWORD`).toString('base64');

const agent = new ProxyAgent({ uri: gateway, token });
const res = await fetch('https://ipinfo.io/json', { dispatcher: agent, signal: AbortSignal.timeout(30000) });
if (!res.ok) throw new Error(`HTTP ${res.status}`);
const info = await res.json();
console.log(info.ip, info.city, info.region, info.org);
await agent.close();