Seems like an interesting effort. A developer is building an alternative Java-based backend to Lemmy's Rust-based one, with the goal of building in a handful of different features. The dev is looking at using this compatibility to migrate their instance over to the new platform, while allowing the community to use their apps of choice.

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[–] mea_rah@lemmy.world 1 points 10 months ago

But like, what kind of error are you gonna handle that's coming from the DB, if it's something like a connection error because the DB is down

I could return 500 (getting Error) instead of 404 (getting None) or 200 (getting Some(results)) from my web app.

Or DB just timed out. The code that did the query is very likely the only code that can reasonably decide to retry for example.