now-ab. Intriguing example of a Zeit Now microservice: now-ab is a Node.js HTTP proxy which proxies through to one of two or more other Now-deployed applications based on a cookie. If you don’t have the cookie, it picks a backend at random and sets the cookie. Admittedly this is the easiest part of implementing A/B testing (the hard part is the analytics: tracking exposures and conversions) but as an example of a microservice architectural pattern this is fascinating.
Recent articles
- Storing times for human events - 27th November 2024
- Ask questions of SQLite databases and CSV/JSON files in your terminal - 25th November 2024
- Weeknotes: asynchronous LLMs, synchronous embeddings, and I kind of started a podcast - 22nd November 2024