Class CypherAdapter

constructor

• new CypherAdapter(
      endpointUrl: string,
      fetchFn?: {
          (input: URL | RequestInfo, init?: RequestInit): Promise<Response>;
          (input: string | URL | Request, init?: RequestInit): Promise<Response>;
      },
      auth?: { password: string; username: string },
      options?: { middleware?: Middleware[] },
  ): CypherAdapter

  Parameters

  • endpointUrl: string
  • OptionalfetchFn: {
        (input: URL | RequestInfo, init?: RequestInit): Promise<Response>;
        (input: string | URL | Request, init?: RequestInit): Promise<Response>;
    }
    • • (input: URL | RequestInfo, init?: RequestInit): Promise<Response>

      • MDN Reference

        Parameters

        • input: URL | RequestInfo
        • Optionalinit: RequestInit

        Returns Promise<Response>

      • (input: string | URL | Request, init?: RequestInit): Promise<Response>

      • MDN Reference

        Parameters

        • input: string | URL | Request
        • Optionalinit: RequestInit

        Returns Promise<Response>

  • Optionalauth: { password: string; username: string }
  • Optionaloptions: { middleware?: Middleware[] }

  Returns CypherAdapter

Readonlyid

Readonlyname

expandNeighborhood

• expandNeighborhood(
      nodeId: string,
      depth: number,
      edgeTypes?: string[],
  ): Promise<UGM>

  Expand the neighborhood of a node at the given depth. Returns a UGM containing the discovered subgraph.

  Parameters

  • nodeId: string
  • depth: number
  • OptionaledgeTypes: string[]

    Optional filter to specific edge types.

  Returns Promise<UGM>

getNodeProperties

• getNodeProperties(nodeId: string): Promise<PropertyMap>

  Get full properties for a specific node. Used for lazy-loading detailed properties.

  Parameters

  • nodeId: string

  Returns Promise<PropertyMap>

getSchema

• getSchema(): Promise<SchemaModel>

  Get the schema of the data source.

  Returns Promise<SchemaModel>

query

• query(q: string): Promise<UGM>

  Execute a query and return results as a new UGM. The query language depends on the adapter (SPARQL, Cypher, etc.).

  Parameters

  • q: string

  Returns Promise<UGM>