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Show HN: We built a type-safe Python ORM for RedisGraph/FalkorDB

5 points·by hello-tmst·6 bulan yang lalu·6 comments

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hello-tmst
·5 bulan yang lalu·discuss
Great question — variable-length paths are fully supported in the query builder:

# Friends of friends (1 to 3 hops)

    stmt = select().match(
        (User.alias("a"), FRIEND.variable_length(1, 3), User.alias("b"))
    ).where(
        User.alias("a").user_id == 1
    ).returns(
        User.alias("b")
    )
Generates: `(a)-[:FRIEND1..3]->(b)`

*Variants:* - Unbounded: `FRIEND.variable_length()` → `
` - Exact length: `FRIEND.variable_length(2, 2)` → `2` - Min only: `FRIEND.variable_length(1)` → `1..` - Range: `FRIEND.variable_length(1, 3)` → `*1..3`

You can also use the explicit `VariableLength(FRIEND, 1, 3)` constructor if you need to alias the path or reference it later in the query.

The builder handles all edge cases (empty paths, cycles) the same way RedisGraph does — we compile to idiomatic Cypher without abstraction leaks. Raw string patterns still work if you need something exotic.
hello-tmst
·5 bulan yang lalu·discuss
Thanks for sharing these resources — great to see the FalkorDB ecosystem growing! We built GraphORM with a focus on type safety + fluent query composition (e.g., indegree()/outdegree() helpers, chainable .match().where().returns()), which we found missing in existing RedisGraph/FalkorDB Python tooling. Happy to see multiple approaches emerging — diversity helps the ecosystem. We're also planning to expand support beyond RedisGraph/FalkorDB to other Cypher-compatible databases where the query model fits. Would love to exchange ideas on ORM design patterns if you're open to it.