Best Practices for Block Management

1// Reliable block fetching with retry mechanism
2const fetchBlockWithRetry = async (blockNumber, maxRetries = 3) => {
3	let retries = 0;
4	while (retries < maxRetries) {
5		try {
6			const block = await web3.eth.getBlock(blockNumber);
7			if (block) return block;
8			throw new Error('Block not found');
9		} catch (error) {
10			retries++;
11			if (retries === maxRetries) throw error;
12			await new Promise((resolve) => setTimeout(resolve, 1000 * retries));
13		}
14	}
15};
16 
17// Safe event handling with error boundaries
18const createBlockListener = (callback) => {
19	return web3.eth
20		.subscribe('newBlockHeaders')
21		.on('data', async (blockHeader) => {
22			try {
23				await callback(blockHeader);
24			} catch (error) {
25				console.error('Block processing error:', error);
26				// Implement your error handling strategy
27			}
28		})
29		.on('error', (error) => {
30			console.error('Subscription error:', error);
31			// Implement your reconnection strategy
32		});
33};