From 4da64a5eb539cc71312d448b0ce557a4a46294f0 Mon Sep 17 00:00:00 2001
From: Stanislav Bezkorovainyi <stanislavbezkor@gmail.com>
Date: Fri, 25 Dec 2020 16:26:00 +0200
Subject: [PATCH] Basic CLI util to transfer ETH

---
 infrastructure/eth_transfer/.gitignore    |  1 +
 infrastructure/eth_transfer/package.json  | 22 +++++++++++
 infrastructure/eth_transfer/src/index.ts  | 45 +++++++++++++++++++++++
 infrastructure/eth_transfer/tsconfig.json | 15 ++++++++
 4 files changed, 83 insertions(+)
 create mode 100644 infrastructure/eth_transfer/.gitignore
 create mode 100644 infrastructure/eth_transfer/package.json
 create mode 100644 infrastructure/eth_transfer/src/index.ts
 create mode 100644 infrastructure/eth_transfer/tsconfig.json

diff --git a/infrastructure/eth_transfer/.gitignore b/infrastructure/eth_transfer/.gitignore
new file mode 100644
index 0000000000..796b96d1c4
--- /dev/null
+++ b/infrastructure/eth_transfer/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/infrastructure/eth_transfer/package.json b/infrastructure/eth_transfer/package.json
new file mode 100644
index 0000000000..976aa6717d
--- /dev/null
+++ b/infrastructure/eth_transfer/package.json
@@ -0,0 +1,22 @@
+{
+  "name": "eth_transfer",
+  "version": "0.0.1",
+  "description": "CLI tool for transfering ETH",
+  "main": "build/index.js",
+  "bin": "build/index.js",
+  "repository": "https://github.com/matter-labs/zksync-dev.git",
+  "author": "The Matter Labs Team",
+  "license": "MIT",
+  "scripts": {
+    "build": "tsc",
+    "watch": "tsc --watch",
+    "start": "node build/index.js"
+  },
+  "devDependencies": {
+    "typescript": "^4.0.2"
+  },
+  "dependencies": {
+    "commander": "^6.0.0",
+    "ethers": "^5.0.18"
+  }
+}
diff --git a/infrastructure/eth_transfer/src/index.ts b/infrastructure/eth_transfer/src/index.ts
new file mode 100644
index 0000000000..0de5c9a7dc
--- /dev/null
+++ b/infrastructure/eth_transfer/src/index.ts
@@ -0,0 +1,45 @@
+import { Command } from 'commander';
+import { ethers, Wallet } from 'ethers';
+
+const program = new Command();
+program.version('0.0.1');
+
+program
+    .option('-pk, --private-key <private-key>', 'private key of the sender')
+    .option('-t, --target <target>', 'address of the target account')
+    .option('-n, --network <network>', 'eth network')
+    .option('-a, --amount <amount>', 'amount of the ETH to be sent');
+
+program.parse(process.argv);
+
+function getProvider(network: string) {
+    if (network === 'localhost') {
+        return new ethers.providers.JsonRpcProvider('http://localhost:8545');
+    }
+
+    return ethers.providers.getDefaultProvider(network);
+}
+
+async function main() {
+    const { privateKey, target, amount, network } = program;
+
+    const provider = getProvider(network || 'mainnet');
+    const wallet = new Wallet(privateKey).connect(provider);
+
+    let tx = {
+        to: target,
+        value: ethers.utils.parseEther(amount)
+    };
+
+    try {
+        const txResponse = await wallet.sendTransaction(tx);
+        console.log('Transaction was sent! Hash: ', txResponse.hash);
+    } catch (err) {
+        console.log('Failed to send tx. Reason: ', err.message || err);
+    }
+}
+
+main().catch((err: Error) => {
+    console.error('Error:', err.message || err);
+    process.exitCode = 1;
+});
diff --git a/infrastructure/eth_transfer/tsconfig.json b/infrastructure/eth_transfer/tsconfig.json
new file mode 100644
index 0000000000..f96df8d60e
--- /dev/null
+++ b/infrastructure/eth_transfer/tsconfig.json
@@ -0,0 +1,15 @@
+{
+    "compilerOptions": {
+        "target": "es2019",
+        "module": "commonjs",
+        "outDir": "build",
+        "strict": true,
+        "esModuleInterop": true,
+        "noEmitOnError": true,
+        "skipLibCheck": true,
+        "declaration": true
+    },
+    "files": [
+        "src/index.ts"
+    ]
+}