Handling AJAX file uploads with progress indication in React using Axios - advanced patterns on large files
I've tried everything I can think of but Can someone help me understand I'm maintaining legacy code that I've looked through the documentation and I'm still confused about I'm implementing a file upload feature in a React application using Axios for AJAX requests... I want to provide users with a progress indicator for the upload. However, when uploading larger files (over 10MB), the progress event seems to stop updating before the upload is complete, and sometimes I get a `413 Payload Too Large` behavior from the server. Here's a simplified version of my upload function: ```javascript import axios from 'axios'; const uploadFile = (file) => { const formData = new FormData(); formData.append('file', file); const config = { onUploadProgress: progressEvent => { const { loaded, total } = progressEvent; let percentCompleted = Math.round((loaded * 100) / total); console.log(`Upload progress: ${percentCompleted}%`); }, headers: {'Content-Type': 'multipart/form-data'} }; return axios.post('/api/upload', formData, config); }; ``` I've ensured that my server (Node.js with Express) is configured to accept larger payloads, but it still occasionally rejects the request. For instance, I'm using `express.json({ limit: '50mb' })` and `express.urlencoded({ limit: '50mb', extended: true })`. When I test with smaller files (like 1MB), it works flawlessly, and the progress updates accurately. But with larger files, I notice that the progress reports often get exploring around 80% before receiving the `413` behavior. I suspect this might be related to the server configuration or the way Axios handles progress events, but I'm not sure where to look. Has anyone encountered similar issues with large file uploads in React using Axios? Any suggestions or best practices to handle this scenario effectively? My development environment is Windows. Am I missing something obvious? The project is a microservice built with Javascript. This is my first time working with Javascript 3.9. I've been using Javascript for about a year now.