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.
Wallets Guide
Complete wallet management guide
SubaccountInfo
Create trading subaccounts
Security
Security best practices
