Add failing test case for sending tokens

src/index.test.ts

@@ -0,0 +1,32 @@
+import { DirectSecp256k1HdWallet, DirectSecp256k1Wallet } from '@cosmjs/proto-signing';
+import { stringToPath } from '@cosmjs/crypto';
+import { fromHex } from '@cosmjs/encoding';
+
+import { sendTokens } from './index'
+
+const MNEMONIC = "talent dismiss teach girl mutual arctic burger matrix outdoor rude vapor rose boost drastic glimpse govern illness rhythm avoid fetch derive increase harvest oak";
+
+const PRIVATE_KEY = "1c6dc846552186ef241489c4e4d10b01086d58b8c2ba06de5dfa589bd52cf23e"
+
+describe('Send tokens', () => {
+  test('Create wallet using mnemonic', async () => {
+    const path = stringToPath("m/44'/60'/0'/0");
+
+    const wallet = await DirectSecp256k1HdWallet.fromMnemonic(
+      MNEMONIC,
+      {
+        prefix: 'ethm',
+        hdPaths: [path]
+      }
+    );
+
+    await sendTokens(wallet)
+  });
+
+  test('Create wallet using private key', async () => {
+    const privateKey = fromHex(PRIVATE_KEY);
+    const wallet = await DirectSecp256k1Wallet.fromKey(privateKey, 'ethm')
+
+    await sendTokens(wallet)
+  });
+})

src/index.ts

@@ -0,0 +1,36 @@
+import { OfflineDirectSigner } from "@cosmjs/proto-signing";
+import { assertIsDeliverTxSuccess, SigningStargateClient } from "@cosmjs/stargate";
+
+const RPC_ENDPOINT = "http://127.0.0.1:26657"
+
+export const sendTokens = async (wallet: OfflineDirectSigner) => {
+  const [firstAccount] = await wallet.getAccounts();
+  console.log("account", firstAccount)
+
+  const client = await SigningStargateClient.connectWithSigner(RPC_ENDPOINT, wallet, { prefix: 'ethm' });
+
+  const senderAddress = firstAccount.address
+  const recipient = "ethm1xv9tklw7d82sezh9haa573wufgy59vmwe6xxe5";
+
+  const amount = {
+    denom: "ethm",
+    amount: "12345",
+  };
+
+  const sendMsg = {
+    typeUrl: "/ethm.bank.v1beta1.MsgSend",
+    value: {
+      fromAddress: senderAddress,
+      toAddress: recipient,
+      amount: [amount],
+    },
+  };
+
+  const defaultFee = {
+    amount: [],
+    gas: "200000",
+  };
+
+  const result = await client.signAndBroadcast(senderAddress, [sendMsg], defaultFee);
+  assertIsDeliverTxSuccess(result);
+}