Downloading files in React can range from a simple static link to complex logic involving binary data, authentication, and progress tracking. Choosing the right method depends on whether the file is publicly accessible, generated on the fly, or secured behind an API. 1. The Simplest Method: Static Links

For files stored in your project's public folder or accessible via a direct URL, use a standard HTML tag with the download attribute. const SimpleDownload = () => ( Download Manual ); Use code with caution.

When you fetch data from an API (like a CSV or PDF) or generate content on the client side, you must convert it into a and trigger a click programmatically. Standard Fetch Example:

Static assets, PDFs, or images already hosted on your server.

If your API requires authentication headers (e.g., JWT), Axios is often the preferred choice. You must set the responseType to blob to ensure the data isn't corrupted as a string. How to download files using axios - Stack Overflow

const downloadFile = async (url, fileName) => { const response = await fetch(url); const blob = await response.blob(); // Convert to binary blob const downloadUrl = window.URL.createObjectURL(blob); const link = document.createElement('a'); link.href = downloadUrl; link.download = fileName; // Force download name document.body.appendChild(link); link.click(); // Cleanup to prevent memory leaks link.remove(); window.URL.revokeObjectURL(downloadUrl); }; Use code with caution. 3. Using Axios for Secured Downloads