fix: remove process.exit(1) from error handlers

Author: onmax

src/content/tutorial/7-gasless-transfers/1-wallet-setup/_files/package.json

@@ -1,5 +1,5 @@
 {
   "type": "module",
-  "scripts": {"generate": "node --watch index.js"},
-  "dependencies": {"ethers": "^5.7.2"}
+  "scripts": { "generate": "node --watch index.js" },
+  "dependencies": { "ethers": "^5.7.2" }
 }

src/content/tutorial/7-gasless-transfers/1-wallet-setup/_solution/package.json

@@ -1,5 +1,5 @@
 {
   "type": "module",
-  "scripts": {"generate": "node --watch index.js"},
-  "dependencies": {"ethers": "^5.7.2"}
+  "scripts": { "generate": "node --watch index.js" },
+  "dependencies": { "ethers": "^5.7.2" }
 }

src/content/tutorial/7-gasless-transfers/1-wallet-setup/content.md

@@ -48,11 +48,13 @@ console.log('Mnemonic:', wallet.mnemonic.phrase)
 ⚠️ **CRITICAL**: Anyone with your private key or mnemonic can spend your funds.
 
 **Do:**
+
 - Store both in a password manager.
 - Write the mnemonic on paper and keep it safe.
 - Never share them with anyone.
 
 **Don't:**
+
 - Screenshot or email your credentials.
 - Store them in plain text on your computer.
 - Reuse this wallet for large amounts in production.
@@ -79,13 +81,17 @@ The Nimiq Wallet supports Polygon and makes managing tokens easier than the comm
 You need two types of tokens:
 
 ### USDC (for transfers)
+
 Visit **https://faucet.circle.com/** to get testnet USDC that works on mainnet. You will need 2-5 USDC to complete the gasless lessons.
 
 ### POL (for gas in Lesson 2)
+
 Visit **https://faucet.polygon.technology/** to get a small amount of POL. You only need ~0.1 POL for the baseline gasful transaction in the next lesson.
 
 ### USDT (no faucet available)
+
 There is no public faucet for USDT on Polygon mainnet. If you want to follow along with USDT examples instead of USDC, you will need to:
+
 - Purchase USDT on an exchange and withdraw to Polygon
 - Swap USDC for USDT using a DEX like Uniswap
 - Bridge USDT from Ethereum mainnet
@@ -109,6 +115,7 @@ Replace that placeholder with your actual private key. Never commit files with y
 ## Verify Your Setup
 
 Before moving forward, confirm:
+
 - ✅ Private key and mnemonic are stored securely
 - ✅ Wallet address is funded with USDC and POL
 - ✅ You understand the security risks

src/content/tutorial/7-gasless-transfers/2-introduction/_files/index.js

@@ -1,6 +1,6 @@
 import { ethers } from 'ethers'
-import { POLYGON_RPC_URL, TRANSFER_AMOUNT_USDT } from './lib/config.js'
 import { checkBalances } from './lib/balances.js'
+import { POLYGON_RPC_URL, TRANSFER_AMOUNT_USDT } from './lib/config.js'
 
 // 🔐 WALLET SETUP: Paste your private key from Lesson 1 here!
 // ⚠️ This wallet needs USDT on Polygon MAINNET (not testnet)
@@ -80,7 +80,7 @@ async function main() {
 
   // Convert to USDT (simplified - in production use oracle)
   const POL_PRICE = 0.50 // $0.50 per POL (example)
-  const feeInUSD = parseFloat(ethers.utils.formatEther(costWithPct)) * POL_PRICE
+  const feeInUSD = Number.parseFloat(ethers.utils.formatEther(costWithPct)) * POL_PRICE
   const feeInUSDT = (feeInUSD * 1.10).toFixed(6) // 10% buffer
   console.log('   • Fee in USDT:', feeInUSDT, 'USDT')
 
@@ -115,6 +115,6 @@ async function main() {
   console.log('\n🎉 Each lesson builds on the previous one!\n')
 }
 
-main().catch(error => {
+main().catch((error) => {
   console.error('\n❌ Error:', error.message)
 })

src/content/tutorial/7-gasless-transfers/2-introduction/_files/lib/balances.js

@@ -1,5 +1,5 @@
 import { ethers } from 'ethers'
-import { USDT_ADDRESS, USDT_ABI, USDT_DECIMALS } from './config.js'
+import { USDT_ABI, USDT_ADDRESS, USDT_DECIMALS } from './config.js'
 
 export async function checkBalances(provider, wallet) {
   const polBalance = await provider.getBalance(wallet.address)
@@ -11,6 +11,6 @@ export async function checkBalances(provider, wallet) {
     pol: polBalance,
     usdt: usdtBalance,
     polFormatted: ethers.utils.formatEther(polBalance),
-    usdtFormatted: ethers.utils.formatUnits(usdtBalance, USDT_DECIMALS)
+    usdtFormatted: ethers.utils.formatUnits(usdtBalance, USDT_DECIMALS),
   }
 }

src/content/tutorial/7-gasless-transfers/2-introduction/_files/lib/config.js

@@ -4,7 +4,7 @@ export const USDT_ADDRESS = '0xc2132D05D31c914a87C6611C10748AEb04B58e8F'
 export const USDT_DECIMALS = 6
 
 export const USDT_ABI = [
-  'function balanceOf(address) view returns (uint256)'
+  'function balanceOf(address) view returns (uint256)',
 ]
 
 export const TRANSFER_AMOUNT_USDT = '0.01'

src/content/tutorial/7-gasless-transfers/2-introduction/_files/package.json

@@ -1 +1 @@
-{"name":"gasless-demo","version":"1.0.0","type":"module","scripts":{"demo":"node --watch index.js"},"dependencies":{"ethers":"^5.7.2","@opengsn/common":"^2.2.6","axios":"^1.6.0"}}
+{ "name": "gasless-demo", "type": "module", "version": "1.0.0", "scripts": { "demo": "node --watch index.js" }, "dependencies": { "@opengsn/common": "^2.2.6", "axios": "^1.6.0", "ethers": "^5.7.2" } }

src/content/tutorial/7-gasless-transfers/2-introduction/_solution/index.js

@@ -1,6 +1,6 @@
 import { ethers } from 'ethers'
-import { POLYGON_RPC_URL, TRANSFER_AMOUNT_USDT } from './lib/config.js'
 import { checkBalances } from './lib/balances.js'
+import { POLYGON_RPC_URL, TRANSFER_AMOUNT_USDT } from './lib/config.js'
 
 // 🔐 WALLET SETUP: Paste your private key from Lesson 1 here!
 // ⚠️ This wallet needs USDT on Polygon MAINNET (not testnet)
@@ -80,7 +80,7 @@ async function main() {
 
   // Convert to USDT (simplified - in production use oracle)
   const POL_PRICE = 0.50 // $0.50 per POL (example)
-  const feeInUSD = parseFloat(ethers.utils.formatEther(costWithPct)) * POL_PRICE
+  const feeInUSD = Number.parseFloat(ethers.utils.formatEther(costWithPct)) * POL_PRICE
   const feeInUSDT = (feeInUSD * 1.10).toFixed(6) // 10% buffer
   console.log('   • Fee in USDT:', feeInUSDT, 'USDT')
 
@@ -115,6 +115,6 @@ async function main() {
   console.log('\n🎉 Each lesson builds on the previous one!\n')
 }
 
-main().catch(error => {
+main().catch((error) => {
   console.error('\n❌ Error:', error.message)
 })

src/content/tutorial/7-gasless-transfers/2-introduction/_solution/lib/balances.js

@@ -1,5 +1,5 @@
 import { ethers } from 'ethers'
-import { USDT_ADDRESS, USDT_ABI, USDT_DECIMALS } from './config.js'
+import { USDT_ABI, USDT_ADDRESS, USDT_DECIMALS } from './config.js'
 
 export async function checkBalances(provider, wallet) {
   const polBalance = await provider.getBalance(wallet.address)
@@ -11,6 +11,6 @@ export async function checkBalances(provider, wallet) {
     pol: polBalance,
     usdt: usdtBalance,
     polFormatted: ethers.utils.formatEther(polBalance),
-    usdtFormatted: ethers.utils.formatUnits(usdtBalance, USDT_DECIMALS)
+    usdtFormatted: ethers.utils.formatUnits(usdtBalance, USDT_DECIMALS),
   }
 }

src/content/tutorial/7-gasless-transfers/2-introduction/_solution/lib/config.js

@@ -4,7 +4,7 @@ export const USDT_ADDRESS = '0xc2132D05D31c914a87C6611C10748AEb04B58e8F'
 export const USDT_DECIMALS = 6
 
 export const USDT_ABI = [
-  'function balanceOf(address) view returns (uint256)'
+  'function balanceOf(address) view returns (uint256)',
 ]
 
 export const TRANSFER_AMOUNT_USDT = '0.01'