The XianWalletUtils JavaScript utility provides a simple interface for interacting with Xian wallet information and requesting transactions via custom events in a web environment.

XianWalletUtils encapsulates the functionality needed to request wallet information and to send transactions using an event-driven approach. It is designed to work within applications that support custom event dispatching and listening, facilitating interaction with blockchain wallets.

To use XianWalletUtils, simply include the JavaScript file in your project.

<script src="path/to/dapp.js"></script>

Before using XianWalletUtils, it's important to initialize the utility to set up necessary event listeners. This ensures that the utility is ready to handle requests and responses appropriately.

XianWalletUtils.init();

Or if you want to use another Node to get balance infos etc.

XianWalletUtils.init("https://testnet.xian.org");

To request wallet information, you can use the requestWalletInfo function. This function returns a promise that resolves with the wallet details.

XianWalletUtils.requestWalletInfo()
    .then(info => {
        console.log('Wallet Address:', info.address);
        console.log('Is Locked:', info.locked);
        console.log('Chain ID:', info.chainId);
    })
    .catch(error => {
        console.error('Extension not installed');
    });

To get the balance of the wallet, you can use getBalance function with the contract of the token that you want to get the balance of. This function returns a promise that resolves with the wallet balance.

XianWalletUtils.getBalance("currency")
    .then(balance => {
        console.log('Balance:', balance);
    })
    .catch(error => {
        console.error(error);
    });

To get the amount of approved tokens that a wallet has approved for another contract/address to spend, you can use getApprovedBalance function with the contract of the token that you want to get approved amount of and the address/contract the approval is meant for. This function returns a promise that resolves with the amount.

XianWalletUtils.getApprovedBalance("currency", "con_multisend")
    .then(amount => {
        console.log('Approved Amount:', amount);
    })
    .catch(error => {
        console.error(error);
    });

To send a transaction with detailed control over the transaction parameters, use the sendTransaction function. This function requires specifying the contract name, method name, kwargs. It returns a promise that resolves with the transaction result.

XianWalletUtils.sendTransaction(
    "currency",            // contract name
    "transfer",            // method/function name
    {                      // kwargs (method arguments)
        "to": "wallet_address",
        "amount": 1000
    }
).then(result => {
    if (result.errors) {
        console.error('Transaction Errors:', result.errors);
    } else {
        console.log('Transaction Result:', result);
    }
});

To request a wallet to sign a message, you can use the signMessage function. This function returns a promise that resolves with the signed msg. (only works with strings, JSON, objects wont work)

XianWalletUtils.signMessage("message")
    .then(response => {
        console.log('Signed Message', response.signature);
    })
    .catch(error => {
        console.error(error);
    });

Contributions to XianWalletUtils are welcome. Please ensure that you test your code and follow existing coding styles.