Top 3 C++ Graphdb Projects

ArangoDB

17 13,340 9.9 C++

🥑 ArangoDB is a native multi-model database with flexible data models for documents, graphs, and key-values. Build high performance applications using a convenient SQL-like query language or JavaScript extensions.

Project mention: Ask HN: When is pure functional programming beneficial? | news.ycombinator.com | 2023-07-11

... or working in an environment or on a problem for which functional patterns apply.
Suppose you are writing a "CRUD" app that writes to a relational database, how do you apply functional programming to that? The whole point of an application like that is that it makes side effects.
In some cases you can break those problems down into functional pieces. Consider Python drivers for a product like
https://www.arangodb.com/
One major problem is that you want drivers that work synchronously and asynchronously, the structure of the average api call is something like
   def query(parameters):

NebulaGraph Database

8 10,114 8.1 C++

A distributed, fast open-source graph database featuring horizontal scalability and high availability (by vesoft-inc)
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
kuzu

11 1,014 9.9 C++

Embeddable property graph database management system built for query speed and scalability. Implements Cypher.

Project mention: Unum: Vector Search engine in a single file | news.ycombinator.com | 2023-07-31

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).