Create Custom Loading Spinner in Lightning Web Component Salesforce | LWC Stack ☁️⚡️

Kapil March 26, 2022

In this blog you will learn to create a Custom Loading Spinner for your Lightning Web Components.

To use a custom spinner you may search for JavaScript spinner and you will be getting tons of results containing custom spinner CSS.

In this blog I am using css from a very simple example at w3schools.com

Checkout the code below :

CSS

.loader {
  border: 16px solid #f3f3f3;
  border-radius: 50%;
  border-top: 16px solid blue;
  border-right: 16px solid green;
  border-bottom: 16px solid red;
  border-left: 16px solid pink;
  width: 120px;
  height: 120px;
  -webkit-animation: spin 2s linear infinite;
  animation: spin 2s linear infinite;
}

@-webkit-keyframes spin {
  0% {
    -webkit-transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
  }
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

HTML

<template>
  <template if:true={isLoading}>
    <div class="loader"></div>
    Please Wait...
  </template>
  <br />
  <lightning-button label="Toggle Spinner" onclick={showSpinner}>
  </lightning-button>
</template>

import { LightningElement } from "lwc";

export default class CustomSpinner extends LightningElement {
  isLoading = false;

  showSpinner() {
    if (!this.isLoading) {
      this.isLoading = true;
    } else {
      this.isLoading = false;
    }
  }
}

Output