CosmWasmJS¶

import { SigningCosmWasmClient, Secp256k1HdWallet, coin, parseCoins } from "cosmwasm";
import { stringToPath } from "@cosmjs/crypto";

// This is your rpc endpoint
// If you choice mainnet ,please use "https://exchaintmrpc.okex.org"
// If you choice mainnet ,please use "https://exchaintesttmrpc.okex.org"
const rpcEndpoint = "http://localhost:26657"; // which is local testnet RPC node URL

// Using mnemonic
// You must change mnemonic if you use your mnemonic
const mnemonic = "palace cube bitter light woman side pave cereal donor bronze twice work";

async function main() {
// Create a wallet
const path = stringToPath("m/44'/118'/0'/0/0");
const wallet = await Secp256k1HdWallet.fromMnemonic(mnemonic, {hdPaths:[path], "prefix":"ex"});
const accs = await wallet.getAccounts();

    // Create Wasm Client
    const client = await SigningCosmWasmClient.connectWithSigner(
        rpcEndpoint,
        wallet,
    );
    const balance = await client.getBalance(accs[0].address,'okt')
    console.log("------------------------------------------------------------------------------------")
    console.log("SigningCosmWasmClient CONNECTION Success")
    console.log("account:",accs[0].address);
    console.log("balance:",balance);
    
    // Query Wasm all code 
    const codes = await client.getCodes();
    console.log("------------------------------------------------------------------------------------")
    console.log("Query all Wasm code:")
    console.log(codes);
}

main();