Using the example, writing to JSON, validation: "no data"

[BananaAcid]

I modified the example to save and load from a JSON file (aka DB), and got "no data".

Finding this stackoverflow, I figured, I needed to get the values from the object parsed through Uint8Array.

this helped me: (mind the authenticator line, where dbAuthenticator is the JSON object and replacing the public key)

let verification: VerifiedAuthenticationResponse;
  try {
    const opts: VerifyAuthenticationResponseOpts = {
      response: body,
      expectedChallenge: `${expectedChallenge}`,
      expectedOrigin,
      expectedRPID: rpID,
      authenticator: { ...dbAuthenticator, credentialPublicKey: new Uint8Array(Object.values(dbAuthenticator.credentialPublicKey)) },
      requireUserVerification: false,
    };
    verification = await verifyAuthenticationResponse(opts);