Audio API Documentation

curl -X POST "https://studio.dropabyte.com/v1/tts" \
    -H "Content-Type: application/json" \
    -H "x-api-key: sk_live_..." \
    -d '{
      "text": "Hello, this is a synchronous synthesis request.",
      "modelId": "google_gemini_2_5_flash_tts",
      "voiceName": "Zephyr",
      "languageCode": "en-US",
      "audioEncoding": "OGG_OPUS",
      "speakingRate": 1.0
    }'

import crypto from "crypto";

export function verifyDropabyteWebhook({
  rawBody,
  signature,
  timestamp,
  secret,
  toleranceMs = 5 * 60 * 1000,
}: {
  rawBody: string;
  signature: string;
  timestamp: string;
  secret: string;
  toleranceMs?: number;
}) {
  const now = Date.now();
  const ts = Number(timestamp);
  if (!Number.isFinite(ts)) return false;
  if (Math.abs(now - ts) > toleranceMs) return false;

  const payloadToSign = `${timestamp}.${rawBody}`;
  const expected = crypto.createHmac("sha256", secret).update(payloadToSign).digest("hex");

  const expectedBuf = Buffer.from(expected, "utf8");
  const receivedBuf = Buffer.from(signature || "", "utf8");
  if (expectedBuf.length !== receivedBuf.length) return false;
  return crypto.timingSafeEqual(expectedBuf, receivedBuf);
}