sakomg/template-nest-app

Nest.js and Salesforce

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Introduction to Node.js

Wiki

• Asynchronous Nature: Node.js is built around asynchronous, non-blocking I/O operations, which align well with the event-driven architecture of Salesforce.
• JavaScript Everywhere: Salesforce's client-side development uses JavaScript heavily, making Node.js a natural fit for server-side integration. Using the same language on both client and server sides simplifies development, reduces context switching, and fosters code reusability.
• Large Ecosystem of Packages (npm): Node.js has a vast ecosystem of open-source packages available through npm (Node Package Manager). This enables rapid development by leveraging pre-built modules for tasks like authentication, API requests, data manipulation, and more.

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Introduction to Nest.js

Wiki

• A progressive Node.js framework for building efficient, scalable, and maintainable server-side applications.
• Utilizes TypeScript, providing strong typing and enhanced developer experience.
• Follows best practices, making it a great fit for enterprise-level applications.
• Supports various modules and libraries for seamless integration with external services.

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Integrating with Salesforce

• Leverage Nest.js to connect your application with Salesforce APIs.
• Utilize Salesforce REST and SOAP APIs for data retrieval and manipulation.
• Implement OAuth 2.0 for secure authentication and authorization.
• Leverage Nest.js decorators for efficient request handling.

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Vanilla Node.js server

const http = require('http');

const server = http.createServer((req, res) => {
    res.writeHead(200, { 'Content-Type': 'text/plain' });
    res.end('Hello World!\n');
});

const PORT = process.env.PORT || 3000;

server.listen(PORT, () => {
    console.log(`Server running at ${PORT}`);
});

Express.js server

const express = require('express');
const app = express();

app.get('/', (req, res) => {
    res.send('Hello World!');
});

const PORT = process.env.PORT || 3000;

app.listen(PORT, () => {
    console.log(`Server running at ${PORT}`);
});

Nest.js server

import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';

async function bootstrap() {
  const PORT = process.env.PORT || 3000;
  const app = await NestFactory.create(AppModule);
  await app.listen(PORT, () => {
    console.log(`Server running at ${PORT}`)
  });
}
bootstrap();

Literature: Further Reading/Watching

• Nest.js Documentation
• Nest.js vs Express.js
• YouTube | Nest.js - quick course
• Circular Dependencies and how to avoid them