this post was submitted on 16 Sep 2023
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It would be nice to be able to bring to light the price gouging that is taking place in Canada with regards to grocery stores.

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[–] [email protected] 12 points 1 year ago (1 children)

At the bottom of the chain on mastodon the creator says they use the search APIs of the store websites. I wouldn't have expected those to be easily accessible!

[–] [email protected] 4 points 1 year ago

Yeah a lot of chains even have a documented, developer-friendly API. If that's not available though, you can usually figure out the API just by looking at the calls your browser makes when visiting a page. Most sites use a REST API for catalog pages that's then rendered out with JavaScript.

If that doesn't work, then you can usually scrape everything with Selenium. It's a little harder to do, but still quite manageable, though that usually has to be a background job, as it's slow.