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Pure Dart library allowing you to easily create an HD Wallet and create, sign and send Cosmos-SDK transactions.

Sacco.dart #

Pub Travis (.org)

Sacco is a pure Dart package that allows you to easily perform some operations related to the Cosmos.network ecosystem. This includes:

  1. Creating an HD Wallet.
  2. Creating a transaction.
  3. Signing a transaction.
  4. Broadcasting a transaction.

Being it in pure Dart this means that you can use it inside your Dart Web projects as well as Flutter ones.

Usage #

Creating a wallet #

final derivationPath = "m/44'/118'/0'/0/0";
final networkInfo = NetworkInfo(id: "", bech32Hrp: "cosmos", lcdUrl: "");

final mnemonicString = "final random flame cinnamon grunt hazard easily mutual resist pond solution define knife female tongue crime atom jaguar alert library best forum lesson rigid";
final mnemonic = mnemonicString.split(" ");
final wallet = Wallet.derive(mnemonic, derivationPath, networkInfo);

Creating a transaction #

final message = StdMsg(
  type: "cosmos-sdk/MsgSend",
  value: {
    "from_address": "cosmos1huydeevpz37sd9snkgul6070mstupukw00xkw9",
    "to_address": "cosmos12lla7fg3hjd2zj6uvf4pqj7atx273klc487c5k",
    "amount": [
      {"denom": "uatom", "amount": "100"}
    ]
  },
);

final stdTx = TxBuilder.buildStdTx(stdMsgs: [message]);

Signing a transaction #

final signedStdTx = TxSigner.signStdTx(wallet: wallet, stdTx: stdTx);

Sending a transaction #

try {
  final hash = await TxSender.broadcastStdTx(
    wallet: wallet,
    stdTx: signedStdTx,
  );
  print("Tx send successfully. Hash: $hash");
} catch (error) {
  print("Error while sending the tx: $error");
}
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Publisher

verified publishercommercio.network

Pure Dart library allowing you to easily create an HD Wallet and create, sign and send Cosmos-SDK transactions.

Repository (GitHub)
View/report issues

License

unknown (LICENSE)

Dependencies

bip32, bip39, bip_bech32, bitcoin_flutter, equatable, hex, http, meta, pointycastle

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