Wikipedia Search App demo

by Ayo Isaiah

HTML

<script src="https://fonts.googleapis.com/css2?family=Poppins&amp;display=swap"></script>
<main>
  <header class="header">
    <img class="logo" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Wikipedia-logo-v2.svg/657px-Wikipedia-logo-v2.svg.png" alt="Wikipedia Logo" />

    <form class="search-form js-search-form">
      <input placeholder="Type a keyword and press Enter to search" type="search" class="search-input js-search-input" autofocus />
    </form>
  </header>

  <div class="loading-indicator">
    <div class="sk-chase js-spinner hidden">
      <div class="sk-chase-dot"></div>
      <div class="sk-chase-dot"></div>
      <div class="sk-chase-dot"></div>
      <div class="sk-chase-dot"></div>
      <div class="sk-chase-dot"></div>
      <div class="sk-chase-dot"></div>
    </div>
  </div>

  <section class="search-results js-search-results"></section>
</main>

CSS

html {
  box-sizing: border-box;
}

*,
*::before,
*::after {
  box-sizing: inherit;
  margin: 0;
  padding: 0;
}

:root {
  --bg-color: #fff;
  --border-color: hsl(0, 0%, 83%);
}

body {
  background-color: var(--bg-color);
  font-family: 'Poppins', sans-serif;
}

.header {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  border-bottom: 1px solid var(--border-color);
  padding: 30px 20px;
  margin-bottom: 40px;
}

.logo {
  margin-bottom: 30px;
  width: 150px;
}

.search-input {
  width: 600px;
  border-radius: 3px;
  padding: 10px;
  border: 1px solid var(--border-color);
  font-size: 18px;
}

.search-input:focus,
.search-input:active {
  border-color: #36c;
  outline: none;
}

.search-results {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.result-item {
  margin-bottom: 20px;
}

.result-title {
  font-size: 22px;
}

.result-snippet {
  font-size: 15px;
  color: #444;
}

.result-link {
  color: #006621;
  text-decoration: none;
  display: block;
  overflow-wrap: break-word;
}

.loading-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
}

.sk-chase {
  width: 40px;
  height: 40px;
  position: relative;
  animation: sk-chase 2.5s infinite linear both;
}

.sk-chase.hidden {
  display: none;
}

.sk-chase-dot {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  animation: sk-chase-dot 2.0s infinite ease-in-out both;
}

.sk-chase-dot:before {
  content: '';
  display: block;
  width: 25%;
  height: 25%;
  background-color: #333;
  border-radius: 100%;
  animation: sk-chase-dot-before 2.0s infinite ease-in-out both;
}

.sk-chase-dot:nth-child(1) {
  animation-delay: -1.1s;
}

.sk-chase-dot:nth-child(2) {
  animation-delay: -1.0s;
}

.sk-chase-dot:nth-child(3) {
  animation-delay: -0.9s;
}

.sk-chase-dot:nth-child(4) {
  animation-delay: -0.8s;
}

.sk-chase-dot:nth-child(5) {
  animation-delay: -0.7s;
}

.sk-chase-dot:nth-child(6) {
  animation-delay:...

JavaScript

async function handleSubmit(event) {
  event.preventDefault();
  const inputValue = document.querySelector('.js-search-input').value;
  const searchQuery = inputValue.trim();

  try {
    const results = await searchWikipedia(searchQuery);
    console.log(results);
  } catch (err) {
    console.log(err);
    alert('Failed to search wikipedia');
  }
}

async function searchWikipedia(searchQuery) {
  const endpoint = `https://en.wikipedia.org/w/api.php?action=query&list=search&prop=info&inprop=url&utf8=&format=json&origin=*&srlimit=20&srsearch=${searchQuery}`;
  const response = await fetch(endpoint);
  if (!response.ok) {
    throw Error(response.statusText);
  }
  const json = await response.json();
  return json;
}

const form = document.querySelector('.js-search-form');
form.addEventListener('submit', handleSubmit);