Crate cognee_graph 

Graph database abstraction layer for Cognee.

This crate provides a trait-based interface for graph database operations, enabling pluggable graph database backends for knowledge graph storage.

Architecture

• GraphDBTrait - Async trait defining graph database operations
• LadybugAdapter - Implementation using Ladybug (lbug) embedded graph database
• GraphNode / GraphEdge - Type aliases for node and edge data

Example

use cognee_graph::{GraphDBTrait, LadybugAdapter};
use cognee_models::Entity;

let db = LadybugAdapter::new("./graph_data").await?;
db.initialize().await?;

let entity = Entity::new("Alice", EntityType::new("Person", None), Some("user-1"));
db.add_node(&entity).await?;

Structs

GraphEdge

Structured graph edge for easier construction

Enums

GraphDBError

Errors that can occur during graph database operations.

Traits

GraphDBTrait

Graph database interface trait.

GraphDBTraitExt

Extension trait providing generic convenience methods on top of GraphDBTrait. Auto-implemented for all types that implement GraphDBTrait.

Functions

get_formatted_graph_data

Fetch the formatted graph snapshot for a dataset.

Type Aliases

EdgeData

Edge data: (source_id, target_id, relationship_name, properties)

EdgeKey

Composite key uniquely identifying an edge in the graph: (source_id, target_id, relationship_name).

GraphDBResult

Result type for graph database operations.

GraphNode

Graph node: (node_id, properties)

NodeData

Node data: arbitrary key-value properties Uses Cow<’static, str> for keys to avoid allocating static strings