deposit paymaster fund before spinning up server

account_abstraction.py

@@ -170,8 +170,15 @@ def start_paymaster(config: Config):
            "SIMPLE_ACCOUNT_FACTORY_ADDRESS": simple_account_factory_address,
            "PAYMASTER_ADDRESS": paymaster_address,
            "TIME_VALIDITY": str(config.paymaster_validity),
+           "INITIAL_DEPOSIT": config.paymaster_initial_deposit,
            "PRIVATE_KEY": config.paymaster_key}
 
+    lib.run(
+        "deposit initial funds for paymaster",
+        command=deps.cmd_with_node("pnpm run deposit"),
+        cwd="paymaster",
+        env=env)
+
     # start paymaster signer service
     log_file_path = f"{config.logs_dir}/paymaster_signer.log"
     log_file = open(log_file_path, "w")

config/account_abstraction.py

@@ -8,6 +8,11 @@ class AccountAbstractionConfig:
     def __init__(self):
         super().__init__()
 
+        self.paymaster_initial_deposit = "3"
+        """
+        Initial deposit amount (in Ether) for the paymaster contract.
+        """
+
         self.paymaster_validity = 300
         """
         Time validity (in seconds) for the sponsored transaction that is signed by paymaster.

paymaster/package.json

@@ -4,6 +4,7 @@
   "description": "",
   "main": "index.js",
   "scripts": {
+    "deposit": "npx ts-node script/deposit.ts",
     "start": "tsc && node dist/src/server.js",
     "test": "npx ts-node test/tests.ts"
   },

paymaster/script/deposit.ts

@@ -0,0 +1,26 @@
+import { ethers } from 'ethers';
+import dotenv from 'dotenv';
+import { paymasterAbi } from '../src/abis';
+dotenv.config();
+
+async function main() {
+    const depositAmount = process.env.INITIAL_DEPOSIT as string;
+    const provider = new ethers.JsonRpcProvider(process.env.RPC_URL as string);
+    const signer = new ethers.Wallet(process.env.PRIVATE_KEY as string, provider);
+
+    // Paymaster first needs to have funds in Entrypoint contract
+    const paymasterAddress = process.env.PAYMASTER_ADDRESS as string;
+    const paymaster = new ethers.Contract(
+        paymasterAddress,
+        paymasterAbi,
+        signer
+    );
+
+    // Deposit
+    await (await paymaster.deposit({ value: ethers.parseEther(depositAmount)})).wait();
+    await (await paymaster.addStake(3000, { value: ethers.parseEther(depositAmount)})).wait();
+
+    console.log("Deposit funds successful!");
+}
+
+main();

paymaster/test/tests.ts

@@ -9,15 +9,13 @@ async function main() {
     const provider = new ethers.JsonRpcProvider(process.env.RPC_URL as string);
     const signer = new ethers.Wallet(process.env.PRIVATE_KEY as string, provider);
 
-    // Paymaster first needs to have funds in Entrypoint contract
+    // Initialize paymaster contract
     const paymasterAddress = process.env.PAYMASTER_ADDRESS as string;
     const paymaster = new ethers.Contract(
         paymasterAddress,
         paymasterAbi,
-        signer
+        provider
     );
-    await (await paymaster.deposit({ value: ethers.parseEther('3')})).wait();
-    await (await paymaster.addStake(3000, { value: ethers.parseEther('3')})).wait();
 
     // Generate initcode
     const simpleAccountFactoryAddress = process.env.SIMPLE_ACCOUNT_FACTORY_ADDRESS as string;