Adds support for viem

package.json

@@ -45,6 +45,7 @@
     "table": "^6.8.0",
     "ts-node": "^10.8.1",
     "undici": "^5.11.0",
+    "viem": "^0.3.40",
     "web3": "^1.6.0",
     "yargs": "^17.2.1"
   },

src/utils/networks.ts

@@ -1,9 +1,21 @@
 import { WsProvider } from "@polkadot/api";
 import chalk from "chalk";
+import {
+  Chain,
+  PrivateKeyAccount,
+  PublicClient,
+  Transport,
+  WalletClient,
+  createPublicClient,
+  createWalletClient,
+  webSocket,
+} from "viem";
 import { ApiPromise } from "@polkadot/api";
 import { typesBundlePre900 } from "moonbeam-types-bundle";
 import { listenBlocks, printBlockDetails, RealtimeBlockDetails } from "./monitoring";
 import { Options } from "yargs";
+import { privateKeyToAccount } from "viem/accounts";
+import { localhost } from "viem/chains";
 
 export type MOONBEAM_NETWORK_NAME =
   | "stagenet"
@@ -117,6 +129,31 @@ export const getApiFor = async (argv: Argv) => {
   });
 };
 
+export const getViemFor = (argv: Argv): PublicClient<Transport, Chain, true> => {
+  const url = isKnownNetwork(argv.network) ? NETWORK_WS_URLS[argv.network] : argv.url;
+  return createPublicClient({
+    transport: webSocket(url),
+  });
+};
+
+/**
+ *
+ * @param argv Network options
+ * @param key Private key
+ * @returns
+ */
+export const getViemAccountFor = (
+  argv: Argv,
+  account: PrivateKeyAccount
+): WalletClient<Transport, Chain, PrivateKeyAccount, true> => {
+  const url = isKnownNetwork(argv.network) ? NETWORK_WS_URLS[argv.network] : argv.url;
+  return createWalletClient({
+    transport: webSocket(url),
+    account,
+    chain: null,
+  });
+};
+
 export const getMonitoredApiFor = async (argv: Argv) => {
   const wsProvider = getWsProviderFor(argv);
   const api = await ApiPromise.create({