npm install
    # or
    yarn install

import fs from 'fs';
    import path from 'path';
    // You might load these from environment variables, a config file, etc.

    export function getSalesforceCredentials() {
        // --- IMPLEMENT YOUR LOGIC HERE to securely load credentials ---
        const loginUrl = "YOUR_SALESFORCE_LOGIN_URL"; // e.g., https://login.salesforce.com or https://yourdomain.my.salesforce.com
        const username = "YOUR_SALESFORCE_USERNAME";
        const clientId = "YOUR_CONNECTED_APP_CONSUMER_KEY";
        // Load your private key used to sign the JWT assertion
        // Ensure the key is formatted correctly, including BEGIN/END lines.
        const privateKey = fs.readFileSync(path.resolve(__dirname, 'path/to/your/server.key'), 'utf8'); 
        // Example: const privateKey = process.env.SF_PRIVATE_KEY;

        if (!loginUrl || !username || !clientId || !privateKey) {
             throw new Error("Missing required Salesforce credentials in utils/credentials.js");
        }

        return {
            loginUrl,
            username,
            clientId,
            privateKey
        };
    }

node server.js