Reduce the number of necessary parameters when using ILP auth about nodejs-questdb-client

[glasstiger]

Actually the Java code has a method to generate the PrivateKey from the string, see below.
I think if we had something similar in javascript that would help.
We could probably create a PrivateKeyInput from the string token but this needs some digging in the cryptography libraries.

    Java:
    public static PrivateKey importPrivateKey(String encodedPrivateKey) {
        byte[] dBytes = Base64.getUrlDecoder().decode(encodedPrivateKey);

        try {
            BigInteger privateKeyInt = new BigInteger(1, dBytes);
            KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance(EC_ALGORITHM);
            AlgorithmParameterSpec prime256v1ParamSpec = new ECGenParameterSpec(EC_CURVE);
            keyPairGenerator.initialize(prime256v1ParamSpec);
            ECParameterSpec parameterSpec = ((ECKey) keyPairGenerator.generateKeyPair().getPrivate()).getParams();
            ECPrivateKeySpec privateKeySpec = new ECPrivateKeySpec(privateKeyInt, parameterSpec);
            return KeyFactory.getInstance(EC_ALGORITHM).generatePrivate(privateKeySpec);
        } catch (NoSuchAlgorithmException | InvalidAlgorithmParameterException | InvalidKeySpecException ex) {
            throw new IllegalArgumentException("Failed to decode " + encodedPrivateKey, ex);
        }
    }

[glasstiger]

The difference is that the node.js client produces the private key from the JWK format provided as input.
The Java client, for example, just takes the private key directly.

Java:
public final void authenticate(String keyId, PrivateKey privateKey);

The node.js client uses this API to create the private key from JWK format:

Creates and returns a new key object containing a private key.
If key is a string or Buffer, format is assumed to be 'pem';
otherwise, key must be an object with the properties described above.
If the private key is encrypted, a passphrase must be specified.
The length of the passphrase is limited to 1024 bytes.

Since:
v11.6.0

function createPrivateKey(key: PrivateKeyInput | string | Buffer | JsonWebKeyInput): KeyObject;