React.js react-sweet-progress Example to Download File Using Fetch With ProgressBar Animation in Browser Using Javascript

Welcome folks today in this blog post we will be using the react-sweet-progress library to download file from url using fetch library with progressbar animation 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-sweet-progress

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

Showing Simple Progressbar

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

App.js

import "./App.css";
import { Progress } from "react-sweet-progress";
import "react-sweet-progress/lib/style.css";

function App() {

  return (
    <div>
      <Progress />
      <Progress percent={88} status="success" />
      <Progress percent={43} status="error" />
      <Progress type="circle" percent={100} status="success" />
    </div>
  );
}

export default App;

import "./App.css";

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

import "react-sweet-progress/lib/style.css";

function App() {

return (

<div>

</div>

);

}

export default App;

As you can see we are importing the react-sweet-progress and then we are also importing the style sheet file for this progressbar. And then inside this we are rendering the progressbar widget and then we are passing the percent and status attributes to the progressbar.

Downloading File With Progressbar

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

App.js

import "./App.css";
import { Progress } from "react-sweet-progress";
import "react-sweet-progress/lib/style.css";
import { useState } from "react";

function App() {
  const [progress, setProgress] = useState(0);

  const handleDownload = async () => {
    let progress = 0;
    const intervalId = setInterval(async () => {
      progress += 5;
      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();
        setProgress(0)
      } else {
        setProgress(progress);
      }
    }, 500);
  };

  return (
    <div>
      <button onClick={handleDownload}>Download File</button>
      <Progress percent={progress} status="active" />
    </div>
  );
}

export default App;

import "./App.css";

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

import "react-sweet-progress/lib/style.css";

import { useState } from "react";

function App() {

const [progress, setProgress] = useState(0);

const handleDownload = async () => {

let progress = 0;

const intervalId = setInterval(async () => {

progress += 5;

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();

setProgress(0)

} else {

setProgress(progress);

}

}, 500);

};

return (

<div>

<button onClick={handleDownload}>Download File</button>

</div>

);

}

export default App;

As you can see we are having the progress hooks variable for tracking the percent of the progress downloaded file. 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.

Similarly we can even have the circular progressbar by providing the type property equal to circle as shown below

return (
    <div>
      <button onClick={handleDownload}>Download File</button>
      <Progress type="circle" percent={progress} status="active" />
    </div>
  );

return (

<div>

<button onClick={handleDownload}>Download File</button>

</div>

);