sign method

@override SignResult sign({ required PactCommandPayload payload, required KadenaSignKeyPair keyPair, })

Takes the SigningRequest object, constructs a Pact Payload with it and signs it with the keyPair.

Implementation

@override
SignResult sign({
  required PactCommandPayload payload,
  required KadenaSignKeyPair keyPair,
}) {
  try {
    // Double encode it so it gets backslashes,
    // which will be added when you jsonEncode the PactCommand
    final String cmd = jsonEncode(payload);
    // print(jsonEncode(payload));
    // print('signing payload');
    // print(cmd);
    // print(jsonDecode(cmd));
    // print(PactCommandPayload.fromJson(jsonDecode(jsonDecode(cmd))));
    // print('swag');

    final hashAndSign = CryptoLib.hashAndSign(
      message: cmd,
      privateKey: keyPair.privateKey,
    );

    final PactCommand signedCmd = PactCommand(
      cmd: cmd,
      hash: hashAndSign.hash,
      sigs: [
        Signer(
          sig: hashAndSign.sig,
        ),
      ],
    );

    return SignResult(
      body: signedCmd,
      signedCmd: signedCmd,
    );
  } catch (e) {
    // print(e);
    return SignResult(
      error: SignRequestError(
        msg: 'Invalid signing request',
      ),
    );
  }
}