After upgrade to v4 getting JWEDecryptionFailed: decryption operation failed

[meliborn]

I have the next jwt config:

jwt: {
  secret: process.env.JWT_SECRET,
  encryptionKey: process.env.JWE_KEY,
  encryption: true,
},

and after upgrade to v4 it stopped to work. What should I change to make it work again?

[balazsorban44]

https://next-auth.js.org/getting-started/upgrade-v4

[meliborn]

@balazsorban44 I saw that encryptionKey was removed from jwt object, but I can't figure out where to put it in the version 4

[balazsorban44]

Nowhere. That option has been removed. If you need to override the encoding/decoding algorithm (which in most cases you don't), just use the encode and decode options.

[meliborn]

@balazsorban44 but what to do with existing sessions?

[balazsorban44]

This has been a breaking change, so, technically not much to do if you use the default. Using the mentioned methods though, you should be able to decode old sessions as well, I think.