Connecting Graph DB with Python Backend: Examples Needed

·Feb 07, 2024 05:26 PM

Hi folks! Does anyone have application code they can share, showing how a graph DB is connected to a python (fastAPI, Django) backend? Or instructions/examples of how to do this?

14 comments

· Sorted by Oldest

Matteo L.
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what graph DB? triplestore? you can use SPARQLWrapper graph DB there is for example https://neo4j.com/docs/getting-started/languages-guides/neo4j-python/ not sure if I got your question correclty
Ellie Y.
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Open to any graphDB but looking specifically for terminusDB or AllegroGraph
Matteo L.
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sorry these two I've never used before 😕 but i expect sparql wrapper to work with allegro
Matteo L.
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https://franz.com/agraph/support/documentation/current/sparql-reference.html
Ellie Y.
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Thank you! We’re specifically looking for an example integration - do you know of any code base that puts this wrapper into use?
Matteo L.
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i am not sure to understand what you mean by integration. Allegrograph exposes a sparql endpoint https://franz.com/agraph/support/documentation/current/http-protocol.html you find the correct URL for your deployment and replace it in the instantiation of SPARQLWrapper https://sparqlwrapper.readthedocs.io/en/latest/main.html#how-to-use this allows you to send queries and process answers
Matteo L.
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from python
Matteo L.
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i am not aware for ORM support though if that is what you are looking for
François S.
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Hey Ellie! Most graph databases expose a SPARQL endpoint that can then be queried directly through HTTP or using a wrapper such as RDFLib sparql wrapper (posted above by Matteo)
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Ellie Y.
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Thank you, Francois :)
Bob DuCharme
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RDFLib does a lot more than provide a SPARQL wrapper. (It's actually older than SPARQL!) It can do a lot of other things that should help with the integration.
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Ellie Y.
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Thanks, Bob!
Vladimir A.
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There are a number of ORM (object-RDF Mapping) frameworks, Empire and Alibaba come to mind. But for a more dynamic "ORM-like" functionality, check out GraphQL
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Ellie Y.
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Great tip, thank you Vladimir!