skiplistrs VS message-db

Sure - here's a simple fuzzer from a rope (fancy string) library I wrote a few years ago back when I was still learning rust. (Don't judge me!):

https://github.com/josephg/skiplistrs/blob/master/tests/test...

In a loop it simply randomly decides whether to insert, delete or replace some text, and after any action checks that the state is valid (In this case via a call to check2()).

You can go way deeper with this sort of thing if you want, with more complex models, random item generation and simplifiers to help pare down problems to simple test cases. And you can have more complex state - for example, where you also track interaction between multiple items. For example, if your state is a few users, and you also track one user paying another user and verify the total balance across all users is unchanged.

But you don't need to go deep for fuzz testing to be worthwhile. Even something as simple as this little loop is a remarkably effective bug finder.

I’m addition to the alternatives mentioned, here’s another Postgres-only ES implementation: https://github.com/message-db/message-db

Thalo is a new Rust library that provides a runtime for WASM-based event sourcing. With Thalo, developers can compile their aggregates and components into WASM modules and use them in the runtime to handle commands and persist events to an event store. The library is built on top of Wasmtime and Message DB, and uses the ESDL schema language to define aggregates. While Thalo is not yet ready for real-world use, it has the potential to make event sourcing more accessible to a wider range of languages that compile to WASM, allowing for a language-agnostic runtime. Give it a try and let us know what you think! https://github.com/thalo-rs/thalo

Its built on top of Wasmtime for wasm execution, and MessageDb which is a message store for Postgres.

We are using message db which is uses postgres under the hood, and provides a few useful postgres functions. We use it with `postgres-simple` and have a small internal library. However my colleague is working on abstracting our logic and open sourcing into a library here: https://github.com/Disco-Dave/message-db

Check out MessageDB https://github.com/message-db/message-db. It's basically Postgres and can be installed into any Postgres DB.

Trying a new language or framework is fun experiments that you spend a few hours on. I have been enjoying implementing Message DB[0] in a hobby project. My current job is not in programming, and not looking for one.

[0]https://github.com/message-db/message-db