https://www.alexanderjunge.net/categories/kbase/ Recent content in Kbase on Alexander Junge's website Hugo -- gohugo.io en-US Sat, 16 May 2020 00:00:00 +0000 https://www.alexanderjunge.net/blog/fastapi-aws-api-gateway/ Sat, 16 May 2020 00:00:00 +0000 https://www.alexanderjunge.net/blog/fastapi-aws-api-gateway/ I started experimenting with AWS and as a first tiny project I deployed a fastAPI-based REST API to AWS Lambda, a serverless framework. Amazon API Gateway acts as a front-door to the Lambda instance. The architecture roughly looks like this: The deployed API is a simplified version of the REST API described in a previous post. My code is available on GitHub. Using AWS SAM, the deployment works like this: https://www.alexanderjunge.net/blog/vue-vote-articles/ Sun, 01 Mar 2020 00:00:00 +0000 https://www.alexanderjunge.net/blog/vue-vote-articles/ As described in my last post, I used Apache Airflow to query articles from arxiv.org. I now built a small web application to label articles that I find interesting (upvote) or not interesting (downvote). Using the application, it took me about an hour to label 500+ arxiv.org preprint articles with an up- or downvote. I plan to use these label to recommend new articles of interest in the future. The application is build in the JavaScript web framework Vue and uses Vuetify Material Design components. https://www.alexanderjunge.net/blog/arxiv-airflow-fastapi-psql/ Sun, 02 Feb 2020 00:00:00 +0000 https://www.alexanderjunge.net/blog/arxiv-airflow-fastapi-psql/ Querying arXiv preprints using Apache Airflow I experimented with Apache Airflow to schedule hourly workflows fetching recent preprint articles from different arXiv categories via the public arXiv.org REST API. These articles are then stored in a PostgreSQL database via a custom-built fastAPI-based REST API. The setup looks like this: The code is fully dockerized and available on GitHub along with more detailed documentation.