Panversal-ChromaDB-client-integration.js

/**
 * Universal ChromaDB Integration Template for Node.js
 *
 * This script is a comprehensive guide for integrating ChromaDB with various document sources and credential management options.
 * It is designed to cater to users with varying levels of coding experience. The script includes sections for fetching documents
 * from Local Files, Google Drive, OneDrive, Dropbox, iCloud, Web, Databases and includes credential management options using .env
 * files or Key Vault Managers like Google Vault, AWS Key Management Services, Azure Key Vault, Hashicorp Vault, etc.
 *
 * Before proceeding, ensure you have installed the necessary Node.js packages:
 * - chromadb (assuming there's a Node.js library for ChromaDB)
 * - dotenv (for .env approach)
 * - googleapis (for Google Drive integration)
 * - axios (for fetching documents from the web)
 * - The respective libraries if you're utilizing a Key-Vault Manager approach
 * - Other libraries as needed based on your document sources and credential management choices
 *
 * The script allows for pulling data from multiple sources simultaneously, as long as the corresponding
 * sections are uncommented and properly configured. Each section is independent, so you can activate as many or as few as needed
 * for your use case.
 *
 * Incorporating Key Vault Managers can enhance security by managing sensitive information like credentials and API keys.
 *
 * Please note that for Apple's iCloud, accessing documents programmatically may be more complex due to Apple's security measures,
 * and it may require additional steps not covered in this template.
 */

// Load the environment variables from the .env file (if using .env approach)
require('dotenv').config();

// Import additional libraries as needed based on your document source and key management strategy
const chromadb = require('chromadb'); // Assuming chromadb has a Node.js library
const fs = require('fs');
const path = require('path');
const {google} = require('googleapis');
const axios = require('axios');

// Load your ChromaDB Client
const chromaClient = new chromadb.Client();

// Create or access your collection
const collectionName = "your_collection_name"; // Replace with your actual collection name
let collection;
try {
    collection = chromaClient.createCollection(collectionName);
} catch (error) {
    collection = chromaClient.getCollection(collectionName);
}

// Initialize arrays to store documents, metadatas, and ids
const documents = [];
const metadatas = [];
const ids = [];

// Credential Management Options

// This template includes placeholders for integrating various Key Vault Managers.
// Replace these with the actual implementation details specific to your chosen
// Key Vault Manager. Each Key Vault Manager has its own methods for accessing
// and retrieving secrets, so you'll need to refer to their respective documentation
// for precise implementation details.

// Uncomment and configure the sections as needed based on your document source and key management strategy

// ---------------------------
// Local Files
// ---------------------------
const directoryPath = "path_to_your_documents"; // Replace with the path to your documents
fs.readdirSync(directoryPath).forEach(filename => {
    if (filename.endsWith(".txt")) { // or .pdf, .docx, etc. based on your files
        const filePath = path.join(directoryPath, filename);
        // Read the file content
        const content = fs.readFileSync(filePath, 'utf-8');
        documents.push(content);
        metadatas.push({"filename": filename}); // Add any other metadata you might have
        ids.push(filename); // Or any other unique identifier
    }
});

// ---------------------------
// Google Drive (requires setup)
// ---------------------------
const credentials = require('./credentials.json'); // Replace with the path to your credentials file
const scopes = ['https://www.googleapis.com/auth/drive'];
const auth = new google.auth.JWT(
    credentials.client_email, null,
    credentials.private_key, scopes
);
const drive = google.drive({version: 'v3', auth});
// List files from Google Drive
drive.files.list({
    pageSize: 10,
    fields: 'files(id, name)',
}, (err, res) => {
    if (err) return console.error('The API returned an error:', err);
    const files = res.data.files;
    if (files.length) {
        // Process files
    } else {
        console.log('No files found.');
    }
});

// ---------------------------
// Fetch from Web
// ---------------------------
const urls = ["http://example.com/document1", "http://example.com/document2"]; // Replace with your document URLs
urls.forEach(async (url) => {
    const response = await axios.get(url);
    documents.push(response.data);
    metadatas.push({"url": url});
    ids.push(url); // Or any other unique identifier
});

// ---------------------------
// OneDrive (requires setup)
// ---------------------------
const { Client } = require('@microsoft/microsoft-graph-client');
require('isomorphic-fetch');
const authProvider = {
    async getAccessToken() {
        // Implement getting an access token
        return process.env.ONEDRIVE_ACCESS_TOKEN;
    }
};
const client = Client.initWithMiddleware({ authProvider });

async function listOneDriveFiles() {
    try {
        const response = await client.api('/me/drive/root/children').get();
        response.value.forEach(file => {
            // Download and read file content
            const content = await client.api(`/me/drive/items/${file.id}/content`).get();
            documents.push(content);
            metadatas.push({"onedrive_id": file.id});
            ids.push(file.id);
        });
    } catch (error) {
        console.error(error);
    }
}
listOneDriveFiles();

// ---------------------------
// Dropbox (requires setup)
// ---------------------------
const Dropbox = require('dropbox').Dropbox;
const dbx = new Dropbox({ accessToken: process.env.DROPBOX_ACCESS_TOKEN });

async function listDropboxFiles() {
    try {
        const response = await dbx.filesListFolder({ path: '' });
        response.result.entries.forEach(async (entry) => {
            const metadata = await dbx.filesDownload({ path: entry.path_lower });
            const content = metadata.result.fileBinary;
            documents.push(content);
            metadatas.push({"dropbox_id": metadata.result.id});
            ids.push(metadata.result.id);
        });
    } catch (error) {
        console.error(error);
    }
}
listDropboxFiles();

// ---------------------------
// Apple's iCloud (requires setup)
// ---------------------------
// Note: Accessing iCloud via third-party services can be complex due to Apple's security measures.
// The following is a hypothetical example and may not work without additional setup and authentication.
const iCloud = require('some-icloud-library'); // Replace with an actual Node.js library for iCloud
const icloud = new iCloud(process.env.APPLE_ID, process.env.ICLOUD_PASSWORD);

async function listICloudFiles() {
    try {
        const files = await icloud.drive['Documents'].list();
        files.forEach(async (file) => {
            const content = await icloud.drive.download(file);
            documents.push(content);
            metadatas.push({"icloud_id": file.id});
            ids.push(file.id);
        });
    } catch (error) {
        console.error(error);
    }
}
listICloudFiles();

// ---------------------------
// Database (generic SQL)
// ---------------------------
const { Pool } = require('pg');
const pool = new Pool({
    user: process.env.DB_USER,
    host: process.env.DB_HOST,
    database: process.env.DB_NAME,
    password: process.env.DB_PASSWORD,
    port: process.env.DB_PORT,
});

async function listDatabaseDocuments() {
    try {
        const response = await pool.query('SELECT document_content, document_id, document_metadata FROM your_table');
        response.rows.forEach(row => {
            documents.push(row.document_content);
            metadatas.push({"source": "your_database", "additional_metadata": row.document_metadata});
            ids.push(row.document_id);
        });
    } catch (error) {
        console.error(error);
    }
}
listDatabaseDocuments();

// Query the collection (optional, for testing)
const results = collection.query(
    ["This is a query document"], // query_texts
    2 // n_results
);
console.log(results);