help upgrading v1 usage to v4

[CollinMonahanLab49]

How to rewrite the following against version 4 of this library?

jose.JWK.asKey(buffer, {
    alg: 'A256GCM',
    use: 'enc',
    kid: 'mock-encryption-key',
  })

Thank you

[panva]

you can just use the buffer to encrypt/decrypt

[CollinMonahanLab49]

Trying to call SignJWT. Trying this led to Key must be of type CryptoKey. Received an instance of Buffer.

[panva]

Please post the full snippet. These tiny splinters don't make overall sense. You've used to import a buffer as an encryption key that you passed to jose.JWT.sign? I'm not making heads or tails of this.