Overview
LocalWallet handles cryptographic key management and transaction signing for the LFG SDK.
import { LocalWallet } from "@oraichain/lfg-client-js";
Static Methods
fromMnemonic()
Create a wallet from a BIP39 mnemonic phrase.
const wallet = await LocalWallet.fromMnemonic(
"your twelve word mnemonic phrase goes here",
"lfg"
);
12 or 24-word BIP39 mnemonic phrase
Address prefix (use "lfg" for LFG DEX)
Promise<LocalWallet>
fromPrivateKey()
Create a wallet from a private key.
const wallet = await LocalWallet.fromPrivateKey("0xYourPrivateKeyHex", "lfg");
Private key as hex string (with or without 0x prefix)
Address prefix (use "lfg")
Promise<LocalWallet>
Properties
address
The wallet’s public address.
console.log(wallet.address); // "lfg1..."
string
pubKey
The wallet’s public key.
console.log(wallet.pubKey?.value); // Public key bytes
PubKey | undefined
Usage Examples
Environment Variables
// From mnemonic
const wallet = await LocalWallet.fromMnemonic(process.env.MNEMONIC!, "lfg");
// From private key
const wallet = await LocalWallet.fromPrivateKey(
process.env.PRIVATE_KEY!,
"lfg"
);
Wallet Factory
async function createWallet(): Promise<LocalWallet> {
if (process.env.MNEMONIC) {
return await LocalWallet.fromMnemonic(process.env.MNEMONIC, "lfg");
} else if (process.env.PRIVATE_KEY) {
return await LocalWallet.fromPrivateKey(process.env.PRIVATE_KEY, "lfg");
}
throw new Error("No wallet credentials found");
}
Never commit private keys or mnemonics to version control. Always use
environment variables or secure secret management.
