export async function vertexDetails()

in packages/graph-explorer/src/connector/sparql/vertexDetails.ts [26:86]

• 52 lines of code
• 4 McCabe index (conditional complexity)

export async function vertexDetails(
  sparqlFetch: SparqlFetch,
  request: VertexDetailsRequest
): Promise<VertexDetailsResponse> {
  const template = query`
    # Get the resource attributes and class
    SELECT * 
    WHERE {
      {
        # Get the resource attributes
        SELECT ?label ?value
        WHERE {
          ${idParam(request.vertexId)} ?label ?value .
          FILTER(isLiteral(?value))
        }
      }
      UNION
      {
        # Get the resource type
        SELECT ?label ?value
        WHERE {
          ${idParam(request.vertexId)} a ?value .
          BIND(IRI("${rdfTypeUri}") AS ?label)
        }
      }
    }
  `;

  // Fetch the vertex details
  const response = await sparqlFetch(template);
  if (isErrorResponse(response)) {
    logger.error("Vertex details request failed", request, response);
    throw new Error("Vertex details request failed", {
      cause: response,
    });
  }

  // Parse the response
  const parsed = vertexDetailsResponseSchema.safeParse(response);

  if (!parsed.success) {
    logger.error(
      "Failed to parse sparql response",
      response,
      parsed.error.issues
    );
    throw new Error("Failed to parse sparql response", {
      cause: parsed.error,
    });
  }

  // Map the results
  if (parsed.data.results.bindings.length === 0) {
    logger.warn("Vertex not found", request.vertexId, response);
    return { vertex: null };
  }

  const vertex = mapToVertex(request.vertexId, parsed.data.results.bindings);

  return { vertex };
}