A terrible grocery price search "app". Fetches data from big Austrian grocery chains daily and lets you search them. See https://heisse-preise.io.
You can also get the raw data. The raw data is returned as a JSON array of items. An item has the following fields:
store: eitherbillaorspar.name: the product name.price: the current price in €.priceHistory: an array of{ date: "yyyy-mm-dd", price: number }objects, sorted in descending order of date.unit: unit the product is sold at. May be undefined.
To run this terrible project locally, you'll need to install Docker.
The project consists of a trivial NodeJS Express server responsible for fetching the product data, massaging it, and serving it to the front end (see index.js). The front end is a least-effort vanilla HTML/JS search form (see sources in site/).
For development, run docker/control.sh startdev. You can connect to both the NodeJS server and the client for debugging in Visual Studio code via the client-server launch configuration (found in .vscode/launch.json).
For production, run docker/control.sh start.