只需几分钟即可交付您的第一份媒体工作。

import crypto from "node:crypto";
import express from "express";

const app = express();

// Register this route before any express.json() middleware.
app.post("/webhooks/mediaruntime", express.raw({ type: "application/json" }), (req, res) => {
  const eventId = req.get("X-Transcoder-Id") || "";
  const signatureHeader = req.get("X-Transcoder-Signature") || "";
  const parts = Object.fromEntries(
    signatureHeader.split(",").map((part) => part.trim().split("="))
  );

  const timestamp = parts.t || "";
  const received = parts.v1 || "";
  const ageSeconds = Math.abs(Date.now() / 1000 - Number(timestamp));
  if (!eventId || !timestamp || !received || ageSeconds > 300) {
    return res.sendStatus(401);
  }

  const expected = crypto
    .createHmac("sha256", process.env.MEDIARUNTIME_WEBHOOK_SECRET)
    .update(timestamp + "." + eventId + ".")
    .update(req.body) // raw Buffer; never JSON.stringify(req.body)
    .digest("hex");

  const a = Buffer.from(expected, "utf8");
  const b = Buffer.from(received, "utf8");
  if (a.length !== b.length || !crypto.timingSafeEqual(a, b)) {
    return res.sendStatus(401);
  }

  const event = JSON.parse(req.body.toString("utf8"));
  // Enqueue work and deduplicate on event.event_id in your database.
  console.log(event.event_id, event.job_id, event.status);
  return res.sendStatus(200);
});

{
  "job_id": "job_2ee8db582cdf4a2fafb49d52218b3159",
  "status": "COMPLETED",
  "tier": {
    "requested": "premium",
    "required": "standard",
    "effective": "premium",
    "billed": "standard",
    "reasons": []
  },
  "usage": { "units_total": 4 },
  "billing": {
    "status": "PAID",
    "currency": "USD",
    "unit_price_cents": 1,
    "final_units": 4,
    "final_amount_cents": 4
  },
  "bundle": {
    "available": true,
    "download_url": "https://mediaruntime.com/v1/jobs/job_2ee8.../bundle?token=...",
    "expires_at": "2026-08-18T03:14:27Z",
    "size_bytes": 13056793,
    "retention_days": 7
  },
  "media": {
    "format": "mov,mp4,m4a,3gp,3g2,mj2",
    "duration_sec": 61.5,
    "bit_rate": 8000000,
    "video": {
      "codec": "h264",
      "profile": "High",
      "width": 1080,
      "height": 1920,
      "encoded_width": 1920,
      "encoded_height": 1080,
      "fps": 29.97,
      "rotation_deg": 90,
      "is_rotated": true,
      "orientation": "portrait"
    },
    "audio": { "codec": "aac", "sample_rate_hz": 48000, "channels": 2, "layout": "stereo" },
    "streams": { "video": 1, "audio": 1, "other": 0 }
  },
  "metadata": { "asset_id": "asset_0426", "media_type": "video" },
  "error": null,
  "completed_at": "2026-08-11T03:14:53Z"
}