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Tracking supermarket prices with Playwright

Aug 6, 2024 • 2126 words • 11 min read Back in Dec 2022, when inflation was running high, I built a website for tracking price changes in the three largest supermarkets of my home country, Greece. In the process I ran into a few interesting hurdles that I had to clear before being able to "go live".

Back in Dec 2022, when inflation was running high, I built a website for tracking price changes in the three largest supermarkets of my home country, Greece. It had dual core M-family processor clocked @ 2.20GHz and 4GB of RAM, which are on the low side especially by today's standards, but then again I only needed to open a single tab in a headless browser and navigate to a bunch of different URLs. My first thought was to use AWS, since that's what I'm most familiar with, but looking at the prices for a moderately-powerful EC2 instance (i.e. 4 cores and 8GB of RAM) it was going to cost much more than I was comfortable to spend for a side project.

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