How to create a progress bar for audio file uploads in a React.js app

To create a progress bar for audio file uploads in a React.js app, you can utilize the built-in progress event provided by the XMLHttpRequest object when making the file upload request. Here's a step-by-step guide on how to achieve this:

1. Set Up Your React App: Set up a new React app or use an existing one where you want to implement the audio file upload feature.

2. Create a Component for Audio File Upload: Create a new component for handling audio file uploads. This component will include an input field for selecting audio files and a progress bar to display the upload progress.

javascriptCopy code
import React, { useState } from 'react';
import axios from 'axios';

const AudioUpload = () => {
  const [file, setFile] = useState(null);
  const [progress, setProgress] = useState(0);

  const handleFileChange = (e) => {
    setFile(e.target.files[0]);
  };

  const handleUpload = () => {
    const formData = new FormData();
    formData.append('audio', file);

    axios.post('/upload', formData, {
      onUploadProgress: (progressEvent) => {
        const percentCompleted = Math.round(
          (progressEvent.loaded * 100) / progressEvent.total
        );
        setProgress(percentCompleted);
      },
    })
    .then((response) => {
      console.log('File uploaded:', response.data);
    })
    .catch((error) => {
      console.error('Upload failed:', error);
    });
  };

  return (
    <div>
      <input type="file" onChange={handleFileChange} />
      <button onClick={handleUpload}>Upload</button>
      {progress > 0 && <progress value={progress} max="100" />}
    </div>
  );
};

export default AudioUpload;

3. Style the Progress Bar: Use CSS to style the progress bar according to your design preferences. You can customize the appearance of the progress bar using CSS properties like width, height, background-color, and border-radius.

4. Use the AudioUpload Component: Finally, use the AudioUpload component in your application wherever you want to allow users to upload audio files.

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import React from 'react';
import AudioUpload from './AudioUpload';

const App = () => {
  return (
    <div>
      <h1>Audio Upload App</h1>
      <AudioUpload />
    </div>
  );
};

export default App;

With these steps, you'll have a progress bar that tracks the upload progress of audio files in your React.js app. Users can select an audio file, and the progress bar will update as the file is uploaded to the server.