To set a specific path, you use the setSavePath method on the downloadItem object. javascript
The primary way to intercept a download and set a custom path is through the will-download event on the Session object. This event triggers before the file starts writing to the disk.
Ensure your will-download listener is attached to the correct session. If you use a partition for your BrowserWindow, the default session won't catch those downloads. electron set download path
If your app shouldn't guess, use Electron’s dialog module. This opens a native "Save As" window. javascript
const { BrowserWindow } = require('electron') let win = new BrowserWindow() win.webContents.session.on('will-download', (event, item, webContents) => { // Define your custom path here const filePath = '/your/custom/path/filename.pdf' item.setSavePath(filePath) item.on('updated', (event, state) => { if (state === 'interrupted') { console.log('Download is interrupted but can be resumed') } else if (state === 'progressing') { if (item.isPaused()) { console.log('Download is paused') } else { console.log(`Received bytes: ${item.getReceivedBytes()}`) } } }) item.once('done', (event, state) => { if (state === 'completed') { console.log('Download successfully') } else { console.log(`Download failed: ${state}`) } }) }) Use code with caution. Key Strategies for Download Paths To set a specific path, you use the
If a file already exists at the target path, Electron may overwrite it or append a number (e.g., file (1).txt ). Check for existing files using fs.existsSync to handle this manually.
Never trust the filename provided by the server ( item.getFilename() ). Sanitize the string to prevent directory traversal attacks. Common Issues Ensure your will-download listener is attached to the
If you want to save files to a subfolder that doesn't exist yet, use Node’s fs module to create the directory before calling setSavePath . Best Practices for Downloads
💡 Use the path module ( require('path') ) to join directory names and filenames. This prevents errors caused by different slash directions on Windows ( \ ) versus macOS/Linux ( / ). If you'd like, I can help you: Write the IPC code to show a progress bar in your UI Set up a "Download Settings" page to save user preferences Debug permission errors when saving to restricted folders
Users hate "silent" downloads. Use the updated event to send progress percentages to your frontend via IPC (Inter-Process Communication).