React.js react-progress Example to Show Youtube ProgressBar Animation to Download File in Browser Using Javascript

Welcome folks today in this blog post we will be using the react-progress library to show youtube progressbar animation to download the file in browser using javascript. All the full source code of the application is shown below.

Get Started

In order to get started you need to make a new react.js app using the below command as shown below

npx create-react-app sampleapp

cd sampleapp

And after that you need to install the below library using the below command as shown below

npm i react-progress

And after that you will see the below directory structure of the react.js app as shown below

Showing Simple Youtube Progressbar Animation

Now we can modify the App.js file and copy paste the following code

App.js

import Progress from "react-progress";

export default function App() {

  return (
    <div>
      <Progress style={{display:"block"}} percent={50} height={1} color="rainbow"  />
    </div>
  );
}

import Progress from "react-progress";

export default function App() {

return (

<div>

</div>

);

}

As you can see we are importing the react-progress at the top and then we are showing the youtube progressbar animation widget and then we are passing various options such as the percent and the color of the animation. And also we can control the height of the animation as well.

Downloading File With Progressbar

Now guys we will be downloading file using fetch api with progressbar animation as shown below.

App.js

import { useState } from "react";
import Progress from "react-progress";

export default function App() {

  const [percent,setPercent] = useState(0)
  const [progressbar,setProgressbar] = useState("none")


  const handleClick = () => {
    setProgressbar("block")
    let progress = 0;
    const intervalId = setInterval(async () => {
      progress += 25;
      if (progress > 100) {
        clearInterval(intervalId);
        const response = await fetch("https://images.unsplash.com/photo-1676481945425-621e73a056ce?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxlZGl0b3JpYWwtZmVlZHwyfHx8ZW58MHx8fHw%3D&auto=format&fit=crop&w=500&q=60", {
          method: "GET",
          headers: {
            "Content-Type": "application/json",
          }
        });
        const blob = await response.blob();
        const url = URL.createObjectURL(blob);
        const link = document.createElement("a");
        link.href = url;
        link.download = "sample.jpg";
        link.click();
        setPercent(0)
        setProgressbar("none")
      } else {
        setPercent(progress);
      }
    }, 500);
  }
 

  return (
    <div>
      <Progress style={{display:progressbar}} percent={percent} height={1}  />
      <button onClick={handleClick}>Download</button>
    </div>
  );
}

import { useState } from "react";

import Progress from "react-progress";

export default function App() {

const [percent,setPercent] = useState(0)

const [progressbar,setProgressbar] = useState("none")

const handleClick = () => {

setProgressbar("block")

let progress = 0;

const intervalId = setInterval(async () => {

progress += 25;

if (progress > 100) {

clearInterval(intervalId);

const response = await fetch("https://images.unsplash.com/photo-1676481945425-621e73a056ce?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxlZGl0b3JpYWwtZmVlZHwyfHx8ZW58MHx8fHw%3D&auto=format&fit=crop&w=500&q=60", {

method: "GET",

headers: {

"Content-Type": "application/json",

}

});

const blob = await response.blob();

const url = URL.createObjectURL(blob);

const link = document.createElement("a");

link.href = url;

link.download = "sample.jpg";

link.click();

setPercent(0)

setProgressbar("none")

} else {

setPercent(progress);

}

}, 500);

}

return (

<div>

<button onClick={handleClick}>Download</button>

</div>

);

}

As you can see we are having the progress and progressbar hooks variable for tracking the percent of the progress downloaded file and also toggling the visibility of the progressbar. And then we have the button in which we have binded the onClick where we are executing the handleDownload() method and inside it we are using the fetch api to download the file as an attachment using the blob property.