Send tokens using evmosjs and eth-sig-util

README.md

@@ -14,17 +14,27 @@ Follow these steps to run the tests:
 
 - Run the chain using `./init.sh`.
 
-- The mnemonic phrase can be seen in the console at the start just after the script is executed.
+- Add a second account with the following:
+  ```bash
+  ethermintd keys add <KEY_NAME> --keyring-backend test
+  ```
 
-- Copy the mnemonic phrase and assign it to variable `MNEMONIC` in the [test file](./src/index.test.ts).
+- Get the account details using:
+  ```bash
+  ethermintd keys list
+  ```
 
-- To export the private key run:
+- Use the address of key `mykey` as the sender address. Copy the address and assign it to `SENDER_ADDRESS` in the [test file](./src/index.test.ts).
+
+- Copy the address of other account and assign it to variable `TO_ADDRESS` in [test file](./src/index.test.ts).
+
+- To export the sender private key run:
 
   ```bash
   ethermintd keys export mykey --unarmored-hex --unsafe
   ```
 
-- Copy the private key and assign it to variable `PRIVATE_KEY` in the [test file](./src/index.test.ts).
+- Copy the private key and assign it to variable `SENDER_PRIVATE_KEY` in the [test file](./src/index.test.ts).
 
 - Run the test in chiba-clonk-client repo:
 
@@ -32,8 +42,11 @@ Follow these steps to run the tests:
   yarn test
   ```
 
-- The account details can be seen using
+- Check account balances after running test:
 
   ```bash
-  ethermintd keys list
+  ethermintd query bank balances <ADDRESS>
+
+  # Example
+  ethermintd query bank balances ethm1ayxjyxxa3z9z0rjff7rpr67h8aqfgn2t9009zc
   ```

package.json

@@ -8,11 +8,16 @@
     "@types/jest": "^27.4.1",
     "jest": "^27.5.1",
     "ts-jest": "^27.1.3",
+    "ts-node": "^10.7.0",
     "typescript": "^4.6.2"
   },
   "dependencies": {
     "@cosmjs/proto-signing": "^0.28.0",
-    "@cosmjs/stargate": "^0.28.0"
+    "@cosmjs/stargate": "^0.28.0",
+    "@metamask/eth-sig-util": "^4.0.0",
+    "axios": "^0.26.1",
+    "ethers": "^5.6.1",
+    "evmosjs": "^0.2.2"
   },
   "scripts": {
     "test": "jest"

src/index.test.ts

@@ -1,32 +1,9 @@
-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 SENDER_ADDRESS = 'ethm1ayxjyxxa3z9z0rjff7rpr67h8aqfgn2t9009zc';
+const SENDER_PRIVATE_KEY = '5041b1ace7ea207794f4c5c1c5f987ff8a9d782f194ef5b24bcffaafaf4a019f';
+const TO_ADDRESS = 'ethm12x63cgg82ek97cf8ew9hf6r7je75s5w2smejqv';
 
-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)
-  });
-})
+test('Send tokens', async () => {
+  await sendTokens(SENDER_PRIVATE_KEY, SENDER_ADDRESS, TO_ADDRESS)
+});

src/index.ts

@@ -1,36 +1,75 @@
-import { OfflineDirectSigner } from "@cosmjs/proto-signing";
-import { assertIsDeliverTxSuccess, SigningStargateClient } from "@cosmjs/stargate";
+import axios from "axios";
+import { generateEndpointAccount, generateEndpointBroadcast, generatePostBodyBroadcast } from '@tharsis/provider';
+import { createMessageSend, createTxRawEIP712, signatureToWeb3Extension } from '@tharsis/transactions'
+import { MessageTypes, signTypedData, SignTypedDataVersion } from "@metamask/eth-sig-util";
 
-const RPC_ENDPOINT = "http://127.0.0.1:26657"
+const ETHERMINT_REST_ENDPOINT = 'http://127.0.0.1:1317'
 
-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);
+interface TypedMessageDomain {
+  name?: string;
+  version?: string;
+  chainId?: number;
+  verifyingContract?: string;
+  salt?: ArrayBuffer;
+}
+
+export const sendTokens = async (senderPrivateKey: string, senderAddress: string, destinationAddress: string) => {
+  let { data: addrData} = await axios.get(`${ETHERMINT_REST_ENDPOINT}${generateEndpointAccount(senderAddress)}`)
+
+  const chain = {
+    chainId: 9000,
+    cosmosChainId: 'ethermint_9000-1',
+  }
+
+  const sender = {
+    accountAddress: addrData.account.base_account.address,
+    sequence: addrData.account.base_account.sequence,
+    accountNumber: addrData.account.base_account.account_number,
+    pubkey: addrData.account.base_account.pub_key.key,
+  }
+
+  const fee = {
+    amount: '20',
+    denom: 'aphoton',
+    gas: '200000',
+  }
+
+  const memo = ''
+
+  const params = {
+    destinationAddress: destinationAddress,
+    amount: '10',
+    denom: 'aphoton',
+  }
+
+  // Create a MsgSend transaction.
+  const msg = createMessageSend(chain, sender, fee, memo, params)
+  const eipMessageDomain: any = msg.eipToSign.domain;
+
+  // Sign transaction.
+  const signature = signTypedData({
+    data: {
+      types: msg.eipToSign.types as MessageTypes,
+      primaryType: msg.eipToSign.primaryType,
+      domain: eipMessageDomain as TypedMessageDomain,
+      message: msg.eipToSign.message as Record<string, unknown>
+    },
+    privateKey: Buffer.from(senderPrivateKey, 'hex'),
+    version: SignTypedDataVersion.V4
+  })
+
+  let extension = signatureToWeb3Extension(chain, sender, signature)
+
+  // Create the txRaw
+  let rawTx = createTxRawEIP712(msg.legacyAmino.body, msg.legacyAmino.authInfo, extension)
+
+  const body = generatePostBodyBroadcast(rawTx)
+
+  // Broadcast it
+  await axios.post(
+    `${ETHERMINT_REST_ENDPOINT}${generateEndpointBroadcast()}`,
+    JSON.parse(body)
+  )
+
+  // TODO: Check for successful broadcast
 }