curl --fail-with-body --silent --show-error --max-time 65 \
  -X POST 'https://api.adscrawl.net/cloud-browsers' \
  -H 'x-api-key: <api-key>' \
  -H 'content-type: application/json' \
  --data '{
  "remark": "work profile",
  "browserSettings": {
    "viewport": {
      "width": 1440,
      "height": 900
    }
  }
}'

// Node.js 20+, save as .mjs. Replace proxy placeholders before running.
const baseUrl = "https://api.adscrawl.net";
const apiKey = process.env.ADSCRAWL_API_KEY;
if (!apiKey) throw new Error("ADSCRAWL_API_KEY is required");

const proxy = {
  server: "http://proxy.example.com:8080",
  username: "<proxy-user>",
  password: "<proxy-password>",
};

async function request(method, path, body, timeoutMs = 65000) {
  const res = await fetch(baseUrl + path, {
    method,
    headers: { "x-api-key": apiKey, "content-type": "application/json" },
    body: body === undefined ? undefined : JSON.stringify(body),
    signal: AbortSignal.timeout(timeoutMs),
  });
  const data = await res.json();
  if (!res.ok) {
    const error = new Error(data.error || "HTTP " + res.status);
    error.status = res.status;
    error.code = data.code;
    error.id = data.id;
    throw error;
  }
  return data;
}

async function stopAndWait(id) {
  const path = "/cloud-browsers/" + encodeURIComponent(id);
  for (let attempt = 0; attempt < 30; attempt++) {
    try {
      const stopped = await request("POST", path + "/stop", undefined, 10000);
      if (stopped.runtime.status === "stopped") return;
      const current = await request("GET", path, undefined, 10000);
      if (current.runtime.status === "stopped") return;
    } catch (error) {
      if (
        error.code !== "CDP_SESSION_STARTING" &&
        !(error.status >= 500) &&
        error.name !== "TimeoutError"
      )
        throw error;
    }
    await new Promise((resolve) => setTimeout(resolve, 2000));
  }
  throw new Error(
    "Stop unconfirmed; quota is still reserved. Retry stop for " + id
  );
}

// 1. Save a profile — no browser starts yet.
const { id } = await request("POST", "/cloud-browsers", {
  remark: "work profile",
  browserSettings: { viewport: { width: 1440, height: 900 } },
});

try {
  // 2. Provide a proxy on EVERY start, even for an existing profile.
  await request(
    "POST",
    "/cloud-browsers/" + encodeURIComponent(id) + "/start",
    { proxy }
  );
  const current = await request(
    "GET",
    "/cloud-browsers/" + encodeURIComponent(id)
  );
  console.log({
    id,
    source: current.source,
    status: current.runtime.status,
    connectUrl: current.runtime.connectUrl,
  });
  const { limit, runningLimit, runningCount } = await request(
    "GET",
    "/cloud-browsers"
  );
  console.log({ limit, runningLimit, runningCount });
} finally {
  await stopAndWait(id);
}
console.log("Stopped; the saved profile remains", id);

{
  "ok": true,
  "id": "<browser-id>"
}