files

The tempfile crate creates temporary files and directories that are automatically cleaned up on drop. I use it in tests, build scripts, and anywhere I need scratch space. tempfile::NamedTempFile gives you a file path, while tempfile::tempfile() create

Streaming responses serve large files without loading them entirely into memory. I use StreamingHttpResponse or FileResponse for file downloads. For CSV generation, I yield rows incrementally. The generator pattern keeps memory usage constant regardle

File uploads require careful validation for security. I validate file size using a custom validator and check content type. Using FileField or ImageField, Django handles storage automatically. I configure MEDIA_ROOT and MEDIA_URL for development. For

Rust's std::fs module provides file I/O. fs::read_to_string() reads a file into a String, fs::write() writes bytes. For larger files or streaming, use File::open() and BufReader/BufWriter for buffered I/O. Always handle errors with Result and ?. For p

DownloadManager handles long-running downloads with notification progress. I create DownloadManager.Request with URI and destination. setNotificationVisibility() controls progress notifications. Headers customize HTTP requests. Network type requiremen