Setting up a GitHub webhook on AWS Lambda

6 minute read

Last month I set up my own Telegram bot for GitHub event notification. To receive GitHub events via webhook, a receiver is needed. True, it isn’t hard to write a Flask or Sinatra server and throw the whole thing onto a VPS, but thinking about the complexity and maintenance efforts, serverless pla...

High-performance mass web crawling on AWS

16 minute read

The 3rd-and-last experiment of course Web Information Processing and Application required us to create a recommendation engine, and “predict” the rating (1-5 stars) for 4M user-item pairs based on the training data of 9M user-item pairs and a social network.