Drasi: Microsoft's open source data processing platform for event-driven systems

(github.com)

320 points benocodes | 1 comments | 20 Oct 24 16:07 UTC | HN request time: 0.202s | source

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CharlieDigital ◴[20 Oct 24 16:49 UTC] No.41896683[source]▶

Very interesting choice of using Cypher[0]

In 2014, we built a similar type event-driven system (but specifically for document distribution (a document can be distributed to a target set of entities; if a new entity is added, we need to resolve which distributions match)) and also ended up using Cypher via Neo4j (because of the complex taxonomical structure of how we mapped entities).

It is a super underrated query language and while most of the queries could also be translated to relational SQL, Cypher's linear construction using WITH clauses is far, far easier to reason about, IMO.

EDIT: feel like the devs went overboard with the mix of languages. Shoehorned in C# Blazor? Using JS and Jest for e2e testing?

[0] https://drasi.io/reference/query-language/

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JanSt ◴[20 Oct 24 17:04 UTC] No.41896809[source]▶

>>41896683 #

I too have great memories of cypher. Such an elegant way to write queries.

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1. CharlieDigital ◴[20 Oct 24 17:11 UTC] No.41896869[source]▶

>>41896809 #

If you haven't been following it, I recently found out that it is now supported in a limited capacity by Google Spanner[0]. The openCypher initiative started a few years back and it looks like it's evolved into the (unfortunate moniker) GQL[1].

So it may be the case that we'll see more Cypher out in the wild.

[0] https://cloud.google.com/spanner/docs/graph/opencypher-refer...

[1] https://neo4j.com/blog/cypher-gql-world/

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