The service-based JavaScript/TypeScript SDK does not have a separate loadIndex() method. Instead, use the createIndex() method to connect to existing indexes.This will be changed in the v0.12.0 release of the JavaScript/TypeScript SDK.

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Connecting to Existing Indexes

To connect to an existing index using the service JavaScript/TypeScript SDK, use createIndex() with the same parameters: 
import { Client, IndexIVFModel } from 'cyborgdb';

const client = new Client('http://localhost:8000', 'your-api-key');

// Connect to existing index (or create if it doesn't exist)
const indexKey = yourExisting32ByteKey; // Must be the same key used originally
const config: IndexIVFModel = {
    dimension: 768,
    nLists: 1024,
    metric: 'cosine'
};

// This will connect to the existing index if it exists with this name and key
const index = await client.createIndex(
    'my-existing-index',
    indexKey,
    config
);