Export files to Amazon S3 in Lua with LuaSocket
Upload files to Amazon S3 from Lua using libcurl’s SigV4 transport, temporary credentials, verified HTTPS, encoded keys, and bounded retries.
Tim Koschützki
Empower your development workflow with our curated collection of quick tips and practical tutorials. From file handling and image processing to API integration and open source tools, our dev tips cover a wide range of topics to enhance your coding skills and boost productivity. Whether you’re a beginner or an experienced developer, dive in to find efficient solutions for your projects.
Upload files to Amazon S3 from Lua using libcurl’s SigV4 transport, temporary credentials, verified HTTPS, encoded keys, and bounded retries.

Build a SwiftUI iOS OCR app with Apple Vision. Choose an image from Files, preserve its orientation, display recognized text, and handle cancellation.

Add a centered diagonal watermark to every visible PDF page with Ghostscript, keep your originals, and inspect a separate compressed candidate.

Loop audio in Python with Pydub, choose hard repeats or crossfaded joins, calculate the output duration, and preserve existing WAV files.

Extract text from a local JPEG or PNG with Python and Google Cloud Vision, using Application Default Credentials, bounded retries, and clear failure exits.
