Salesforce SDK Patterns

Overview

Production-ready patterns for jsforce (Node.js) and simple-salesforce (Python) — singleton connections, typed queries, error handling, and token refresh.

Prerequisites

• Completed salesforce-install-auth setup
• Familiarity with async/await and TypeScript generics
• Understanding of Salesforce sObject model

Instructions

Step 1: Singleton Connection with Auto-Refresh

// src/salesforce/connection.ts
import jsforce from 'jsforce';

let conn: jsforce.Connection | null = null;