Ad verification for your own campaigns

import { createHash } from "node:crypto";
import { mkdir, writeFile } from "node:fs/promises";
import puppeteer, { KnownDevices } from "puppeteer";

const USER = process.env.NETDASH_USERNAME;
const PASS = process.env.NETDASH_PASSWORD;

// One check of your own campaign: one country, one device.
const check = {
  campaignId: "spring-sale-us-mobile",
  country: "US",
  landingUrl: "https://www.yourcompany.example/spring-sale?utm_campaign=spring-sale",
};
const capturedAt = new Date().toISOString();
const sid = createHash("sha256").update(`${check.campaignId}:${check.country}:${capturedAt}`).digest("hex").slice(0, 8);

// Chrome takes the gateway here; the username and password go to page.authenticate().
const browser = await puppeteer.launch({ args: ["--proxy-server=http://mobile-us.netdash.io:4000"] });
try {
  const page = await browser.newPage();
  await page.authenticate({ username: `${USER}-cc-${check.country}-session-${sid}-ttl-15`, password: PASS });
  await page.emulate(KnownDevices["iPhone 15"]); // mobile user agent and viewport, before navigating

  const response = await page.goto(check.landingUrl, { waitUntil: "networkidle2", timeout: 60_000 });
  if (!response) throw new Error("No response for the landing URL");
  const chain = [...response.request().redirectChain(), response.request()].map((req) => ({
    url: req.url(),
    status: req.response()?.status() ?? null,
  }));

  await mkdir("evidence", { recursive: true });
  const base = `evidence/${check.campaignId}-${check.country}-mobile`;
  await page.screenshot({ path: `${base}.png`, fullPage: true });
  const record = {
    campaignId: check.campaignId,
    exitCountry: check.country,
    plan: "mobile",
    session: sid,
    capturedAt,
    redirectChain: chain,
    finalUrl: page.url(),
    landingStatus: response.status(),
    pageLang: await page.evaluate(() => document.documentElement.lang),
  };
  await writeFile(`${base}.json`, JSON.stringify(record, null, 2));
} finally {
  await browser.close();
}