Quick Node script to find largest dependency in package.json

index.js

const { dependencies } = require('../package.json');

const deps = Object.keys(dependencies).map((p) => `${p}@${dependencies[p]}`);

function pluralize(count, singular, plural) {
  if (count === 1) return `${count} ${singular}`;

  return `${count} ${plural}`;
}

function wait(milliseconds) {
  return new Promise((resolve, _reject) => {
    setTimeout(resolve, milliseconds);
  });
}

async function getResults() {
  const results = [];

  // Fetching the package stats one at a time, with a delay, because I pretty
  // consistently got rate limited when fetching them faster.
  for (const dep of deps) {
    await fetch(`https://bundlephobia.com/api/size?package=${dep}`)
      .then((response) => response.json())
      .then((result) => {
        results.push(result);
      })
      .catch(() => {
        console.log(`could not fetch ${dep}`);
      });

    await wait(200);

    process.stdout.write(
      'Checked ' + results.length + ' of ' + deps.length + ' dependencies\r'
    );
  }

  results.sort((a, b) => b.size - a.size);

  results.forEach((result) => {
    if (!result) return;

    const { dependencyCount, name, size, gzip } = result;

    const depsString = pluralize(dependencyCount, 'dependency', 'dependencies');
    const sizeString = `${size / 1024}kb (${gzip / 1024}kb gzipped)`;

    console.log(`${name} | ${sizeString} | ${depsString}`);
  });
}

console.log(`Getting package stats for ${deps.length} dependencies...`);

getResults();