Placing & Load-Testing Calls

curl -X POST https://api.revdesk.com/v1/calls/dial \
  -H "Authorization: Bearer $REVDESK_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "from_number": "+1XXXXXXXXXX",
    "to_number":   "+1YYYYYYYYYY",
    "record": true
  }'
# → 202 { "data": { "call_id": "…", "status": "QUEUED", … } }

curl https://api.revdesk.com/v1/calls/<call_id> \
  -H "Authorization: Bearer $REVDESK_API_KEY"

// load-test.mjs, usage: REVDESK_API_KEY=... node load-test.mjs
const KEY = process.env.REVDESK_API_KEY;
const BASE = "https://api.revdesk.com";
const FROM = ["+1XXXXXXXXXX"];               // numbers you own (rotate across your pool)
const TO   = ["+1YYYYYYYYYY"];               // destinations you control
const RAMP = [3, 6, 10, 20];                 // concurrent calls per wave
const COOLDOWN_MS = 15_000;

async function placeOne(i) {
  const t0 = performance.now();
  const res = await fetch(`${BASE}/v1/calls/dial`, {
    method: "POST",
    headers: { "Content-Type": "application/json", Authorization: `Bearer ${KEY}` },
    body: JSON.stringify({
      from_number: FROM[i % FROM.length],
      to_number: TO[i % TO.length],
      record: false,
    }),
  });
  const ms = Math.round(performance.now() - t0);
  const body = await res.json().catch(() => ({}));
  return { ok: res.ok, status: res.status, ms, callId: body?.data?.call_id };
}

const sleep = (ms) => new Promise((r) => setTimeout(r, ms));

for (const n of RAMP) {
  const results = await Promise.all(Array.from({ length: n }, (_, i) => placeOne(i)));
  const ok = results.filter((r) => r.ok).length;
  const lat = results.map((r) => r.ms).sort((a, b) => a - b);
  const p95 = lat[Math.min(lat.length - 1, Math.floor(0.95 * lat.length))];
  console.log(`n=${n}  ok=${ok}/${n}  p95=${p95}ms  429s=${results.filter((r) => r.status === 429).length}`);
  if (ok / n < 0.9) { console.log(`fail rate too high at n=${n}, stopping`); break; }
  if (n !== RAMP.at(-1)) await sleep(COOLDOWN_MS);
}