setSignatures method

void setSignatures(List<SignatureV2> signatures)

Sets the given signatures as the transaction sigantures.

Implementation

void setSignatures(List<SignatureV2> signatures) {
  final signerInfos = <SignerInfo>[];
  final rawSigs = <List<int>>[];

  for (var index = 0; index < signatures.length; index++) {
    final signature = signatures[index];
    if (signature.data is! SingleSignatureData) {
      throw Exception('Signature data not supported: ${signature.data}');
    }

    final data = signature.data as SingleSignatureData;
    if (data.signature != null) {
      rawSigs.add(data.signature!);
    }

    final single = ModeInfo_Single.create()..mode = data.signMode;
    final modeInfo = ModeInfo.create()..single = single;

    final signerInfo = SignerInfo.create()
      ..modeInfo = modeInfo
      ..publicKey = signature.pubKey;

    // Do not include default values as per ADR-027
    if (signature.sequence > 0) {
      signerInfo.sequence = signature.sequence;
    }

    signerInfos.add(signerInfo);
  }

  // Set the raw signatures
  _stdTx.signatures.clear();
  _stdTx.signatures.addAll(rawSigs);

  // Create the AuthInfo if not existing
  if (!_stdTx.hasAuthInfo()) {
    _stdTx.authInfo = AuthInfo.create();
  }

  // Set the signer infos
  _stdTx.authInfo.signerInfos.clear();
  _stdTx.authInfo.signerInfos.addAll(signerInfos);
}