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HTML

              
                <p>This like button is a petite-vue component that, based on a given key (title), will look up and increment a value using Cloudflare workers and KV. As it gets more likes it will grow bigger.</p>
<div class="likes" v-scope="likes({ title:'test' })"></div>
              
            
!

CSS

              
                *, *::before, *::after { box-sizing:border-box }

body {
	margin:0;
  font-family: Roboto, sans-serif;
  background-color: var(--bg-color);
  
  display:grid;
  place-items:center;
  min-height:100vh;
}

p {
  padding:50px 10px;
  font-size:2rem;
  max-width:500px;
  font-weight:bold;
}


:root {
  --c-peach: #e5a97e;
  --bg-color: #E6D9D0;
  --fg-color: #17171e;
  --accent-color: var(--c-peach);
}

.likes {
   

  

  position:fixed;
  right:max( 10px, 2vw );
  bottom:10px;

  
  max-width: max(100px, 8vw);

  .like-button {
    
    --likes: ;
    --size: min( 3, calc( 1 + ( var(--likes) / 200) ) );
    
    transition: transform 0.4s ease;
    transform: scale( var(--size) ) rotate3d( 1, 1, 1, 10deg);
    transform-origin: bottom right;
    
    display:grid;
    place-items:center;

    > * {
      grid-column: 1 / -1;
      grid-row: 1 / -1;
    }

    svg { 
      width:100%;
    }

    p {
      font-size: clamp( 18px, 12px + 0.66vw, 42px);
      pointer-events: none;
      position:relative;
      top:-6px;
      margin:0;
    }

    button {
      border:none;
      background:none;
      cursor:pointer;
    }
    
    
    &:hover {
      animation: beat 0.3s infinite alternate; 
    }

    @keyframes beat {
      0% {
        transform: scale( var(--size) ) rotate3d( 1, 1, 1, 10deg);
      }
      
      100% {
        transform:scale( calc( 1.1 * var(--size) ) ) rotate3d( 1, 1, 1, 15deg);
      }
    }
  }
  
    
 }
              
            
!

JS

              
                //Full Walkthrough here: https://andrewwalpole.com/blog/building-a-like-button-with-cloudflare-workers/

import { createApp } from 'https://unpkg.com/petite-vue?module';

const likes = ({title}) => {

  const endpoint = 'https://likes.walpolea.workers.dev/';
  return {
    $template: `
    <article class="like-button" @vue:mounted="mounted" :style="{'--likes':likes}">
      <button @click="postLike();">
        <svg :width="likes + '%'" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 78.09 74.75">
          <polygon points="2 34.869 2 13.192 13.181 2 36.04 2 36.04 9.188 43.221 2 64.909 2 76.09 13.192 76.09 34.869 45.464 65.495 39.052 71.92 2 34.869" fill="var(--accent-color)" />
          <path d="M64.08,4l10.01,10.02v20.02l-30.04,30.04-5,5.01L4,34.04V14.02L14.01,4h20.03V14.02l10.01-10.02h20.03m1.658-4h-23.346l-1.172,1.173-3.18,3.183V0H12.352l-1.172,1.173L1.17,11.193l-1.17,1.171v23.333l1.172,1.172,35.05,35.05,2.831,2.831,2.828-2.834,5-5.01,30.037-30.037,1.172-1.172V12.364l-1.17-1.171L66.91,1.173l-1.172-1.173h0Z" fill="var(--fg-color)" />
        </svg>
      </button>
      <p v-if="likes > 0">{{likes}}</p>
    </article>`,
    title,
    likes:0,
    likeAdded:false,
    async mounted() {
      await this.loadLikes();
    },
    async loadLikes() {
      this.likes = (await ( await fetch(`${endpoint}?title=${this.title}`)).json()).likes;
    },
    async postLike() {
      if( !this.likeAdded ) {

        const response = await ( await fetch(endpoint, {
          method: 'POST',
          headers: {
            'Accept': 'application/json',
            'Content-Type': 'application/json'
          },
          body: JSON.stringify({title: this.title})
        })).json();

        this.likes = response.likes;

        this.likeAdded = true;
      }
    }
  }
}

createApp({likes}).mount();
              
            
!
999px

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