BlocktimeMonitor.js

/* eslint-disable no-await-in-loop, no-console */

const { sleep } = require('../helpers');
const { createNetworkProvider } = require('../web3');

class BlocktimeMonitor {
  network;

  protocol;

  provider;

  blockCounter;

  blocksTimeDiff;

  minDiff;

  maxDiff;

  constructor(network, protocol) {
    this.reset(network, protocol);
  }

  async start() {
    console.clear();
    console.log('Monitoring:  ', this.provider.connection.url);
    console.log();

    if (this.protocol === 'ws') {
      return this.startWsTest();
    }

    return this.startHttpTest();
  }

  async startHttpTest() {
    let blockNumber = await this.provider.getBlockNumber();
    let previuesBlockNumber;

    while (this.blockCounter < 50) {
      previuesBlockNumber = blockNumber;
      blockNumber = await this.provider.getBlockNumber();

      if (blockNumber !== previuesBlockNumber) {
        this.logNewBlock(blockNumber);
      }

      await sleep(100);
    }
  }

  async startWsTest() {
    this.provider.on('block', (blockNumber) => this.logNewBlock(blockNumber));
  }

  async logNewBlock(blockNumber) {
    const recivedDate = new Date();
    const blockInfo = await this.provider.getBlock(blockNumber);

    if (blockInfo && blockInfo.timestamp) {
      const blockDate = new Date(blockInfo.timestamp * 1000);
      const diff = (recivedDate - blockDate) / 1000;

      this.blockCounter += 1;
      this.blocksTimeDiff += diff;

      if (diff > this.maxDiff) this.maxDiff = diff;
      if (diff < this.minDiff) this.minDiff = diff;

      BlocktimeMonitor.printBlockInfo({
        blockNumber,
        blockDate,
        recivedDate,
        diff,
      });
    }
  }

  reset(network, protocol) {
    if (protocol !== 'http' && protocol !== 'ws') {
      throw new Error(
        `Unsupported network protocol provided: ${protocol}. Supported values are ['http', 'ws']`
      );
    }

    this.blockCounter = 0;
    this.blocksTimeDiff = 0;
    this.minDiff = 10000;
    this.maxDiff = 0;
    this.network = network;
    this.protocol = protocol;
    this.provider = createNetworkProvider(network, protocol);
  }

  printResults() {
    console.log();
    console.log('Monitored blocks:', this.blockCounter);
    console.log(
      'Avarage diff:',
      (this.blocksTimeDiff / this.blockCounter).toFixed(3),
      'seconds'
    );
    console.log('Min diff:', this.minDiff.toFixed(3), 'seconds');
    console.log('Max diff:', this.maxDiff.toFixed(3), 'seconds');
  }

  static printBlockInfo({ blockNumber, blockDate, recivedDate, diff }) {
    console.log('New Block:', blockNumber);
    console.log('Minned time: ', blockDate.toLocaleString());
    console.log('Recived time:', recivedDate.toLocaleString());
    console.log('Diff:', diff.toFixed(3), 'seconds');
    console.log('---------');
    console.log();
  }
}

module.exports = BlocktimeMonitor;

results.txt

Monitoring:   wss://weathered-falling-snow.quiknode.pro/API_KEY/

New Block: 14157218
Minned time:  2/7/2022, 12:54:54 PM
Recived time: 2/7/2022, 12:55:12 PM
Diff: 18.415 seconds
---------

New Block: 14157218
Minned time:  2/7/2022, 12:54:54 PM
Recived time: 2/7/2022, 12:55:14 PM
Diff: 20.957 seconds
---------

New Block: 14157219
Minned time:  2/7/2022, 12:55:08 PM
Recived time: 2/7/2022, 12:55:23 PM
Diff: 15.227 seconds
---------

New Block: 14157220
Minned time:  2/7/2022, 12:55:20 PM
Recived time: 2/7/2022, 12:55:34 PM
Diff: 14.207 seconds
---------

New Block: 14157221
Minned time:  2/7/2022, 12:55:31 PM
Recived time: 2/7/2022, 12:55:58 PM
Diff: 27.337 seconds
---------

New Block: 14157222
Minned time:  2/7/2022, 12:55:55 PM
Recived time: 2/7/2022, 12:56:00 PM
Diff: 5.904 seconds
---------

New Block: 14157223
Minned time:  2/7/2022, 12:55:57 PM
Recived time: 2/7/2022, 12:56:29 PM
Diff: 32.788 seconds
---------

New Block: 14157224
Minned time:  2/7/2022, 12:56:27 PM
Recived time: 2/7/2022, 12:57:01 PM
Diff: 34.738 seconds
---------

New Block: 14157225
Minned time:  2/7/2022, 12:56:58 PM
Recived time: 2/7/2022, 12:57:07 PM
Diff: 9.554 seconds
---------

New Block: 14157226
Minned time:  2/7/2022, 12:57:05 PM
Recived time: 2/7/2022, 12:57:23 PM
Diff: 18.446 seconds
---------

New Block: 14157227
Minned time:  2/7/2022, 12:57:20 PM
Recived time: 2/7/2022, 12:57:30 PM
Diff: 10.112 seconds
---------

New Block: 14157228
Minned time:  2/7/2022, 12:57:27 PM
Recived time: 2/7/2022, 12:58:11 PM
Diff: 44.267 seconds
---------

New Block: 14157229
Minned time:  2/7/2022, 12:58:08 PM
Recived time: 2/7/2022, 12:58:19 PM
Diff: 11.039 seconds
---------

New Block: 14157230
Minned time:  2/7/2022, 12:58:16 PM
Recived time: 2/7/2022, 12:58:21 PM
Diff: 5.579 seconds
---------

New Block: 14157231
Minned time:  2/7/2022, 12:58:17 PM
Recived time: 2/7/2022, 12:58:47 PM
Diff: 30.007 seconds
---------

New Block: 14157232
Minned time:  2/7/2022, 12:58:44 PM
Recived time: 2/7/2022, 12:58:49 PM
Diff: 5.566 seconds
---------


Monitored blocks: 16
Average diff: 19.009 seconds
Min diff: 5.566 seconds
Max diff: 44.267 seconds