docs: 📝 Improved docs

README.md

@@ -4,18 +4,40 @@ Simple wrapper for monero-wallet-rpc calls.
 
 ```javascript
 import Wallet from 'monero-wallet-rpc-js'
+(async () => {
 
-// Create a new walletRpc connection
-const wallet = new Wallet({
-	url: 'http://localhost:18082',
-	filename: 'mywallet',
-	password: 'secretpassword',
-	address: '4....',
-	viewKey: 'XXXXXXX....',
-	restoreHeight: '573936',
-})
+	// Load wallet
+	let wallet; try {
+		wallet = new Wallet({
+			url: 'http://localhost:18082',
+			filename: 'mywallet',
+			password: 'secretpassword',
+			address: '4....',
+			viewKey: 'XXXXXXX...',
+			spendKey: 'XXXXXXX...',
+			restoreHeight: '573936',
+		})
+	} catch (err) {
+		console.error(`Failed to open wallet: ${err}`)
+	}
 
-// Call it
-let height = await wallet.rpc('get_height')
-console.log(`Synced height: ${height}`)
+	// Save wallet
+	await wallet.store()
+
+	// Auto-save wallet
+	const AUTOSAVE_SEC = 10
+	setInterval(await wallet.store(), AUTOSAVE_SEC)
+
+	// Wrapped methods
+	console.log(await wallet.getHeight()) // 3132418
+	// Some return objects
+	// See https://www.getmonero.org/resources/developer-guides/wallet-rpc.html#get_balance
+	let bal = await wallet.getBalance()
+	console.log(`Balance: ${bal.balance}
+	             Unlocked: ${bal.unlocked_balance}`)
+
+	// Arbitrary RPC call
+	console.log((await wallet.rpc('get_address', {
+			account_index: 2
+		})).address)
 ```