tencent cloud

const Koa = require('koa')
const cors = require('koa2-cors')
const app = new Koa()
const tencentcloud = require("tencentcloud-sdk-nodejs")

app.use(cors()) // CORS configuration
app.use(async (ctx) => {
  // The URI request in the generated m3u8 file will carry the parameters by default
  const { Ciphertext, KMSRegion } = ctx.query

  const KmsClient = tencentcloud.kms.v20190118.Client
  const clientConfig = {
 credential: {
   // Account API key, which can be obtained at https://console.tencentcloud.com/cam/capi
   secretId: "SecretId",
   secretKey: "SecretKey",
 },

 region: KMSRegion, // Region, such as "ap-guangzhou"
 profile: {
   httpProfile: {
       endpoint: "kms.tencentcloudapi.com",
   },
 },
  };

  // Create a KMS object instance
  const client = new KmsClient(clientConfig);
  const params = {
   "CiphertextBlob": Ciphertext,
  };

 try {
 // Initiate a request to get the decryption key
 const res = await client.Decrypt(params)

 // Take out the key and return its binary data after Base64-decryption
 const plaintext = res.Plaintext
 const plainBuff = Buffer.from(plaintext, 'base64');
 ctx.body = plainBuff
  } catch (error) {
 console.log(error);
  }

})

// Listen on port 8080.
app.listen('8080', () => {
  console.log('127.0.0.1:8080');
})

<!--Player style file-->
<link href="https://web.sdk.qcloud.com/player/tcplayer/release/v4.2.2/tcplayer.min.css" rel="stylesheet"/>
<!--If you want to play back HLS videos through HTML5 in a browser such as Chrome and Firefox, you need to import `hls.min.0.13.2m.js` before importing `tcplayer.v4.2.2.min.js`.-->
<script src="https://web.sdk.qcloud.com/player/tcplayer/release/v4.2.2/libs/hls.min.0.13.2m.js"></script>
<!--Player script file-->
<script src="https://web.sdk.qcloud.com/player/tcplayer/release/v4.2.2/tcplayer.v4.2.2.min.js"></script>

<video id="player-container-id" width="414" height="270" preload="auto" playsinline webkit-playsinline>
</video>