azure-functions

Type-safe Serverless Library for Azure Functions and friends

🚧 Alpha Stage: Internal Use Only 🚧

Please note that Nammatham v2 is currently in its Alpha stage and is intended for internal use only. As we actively develop and refine the platform, be aware that the API may undergo frequent changes. Tracking v2 Roadmap

Note: Nammatham v1 is currently in maintenance mode. no new features are actively being developed

You're reading v2 docs

Version	Status	Azure Functions Node.js Lib	Branch	Build Status
v1.x	Maintenance	v3.x	v1.x
v2.x	Alpha	v4.x	main

Description

Nammatham (นามธรรม in Thai, pronounced /naam ma tham/, means abstract in Thai) is Azure Function Nodejs.

Getting Started for Azure Functions

Install

# Including all packages
npm install nammatham@alpha

Example

You can see examples or follow the minimal app getting started below:

initNammatham.create() is a factory function for creating Nammatham App, it's a wrapper for Azure Functions App.

import { initNammatham, expressPlugin } from 'nammatham';

const n = initNammatham.create();
const func = n.func;
const app = n.app;

const helloFunction = func
  .httpGet('hello', {
    route: 'hello-world',
  })
  .handler(async c => {
    c.context.log('HTTP trigger function processed a request.');
    c.context.debug(`Http function processed request for url "${c.trigger.url}"`);
    const name = c.trigger.query.get('name') || (await c.trigger.text()) || 'world';
    return c.text(`Hello, ${name}!`);
  });

app.addFunctions(helloFunction);

const dev = process.env.NODE_ENV === 'development';
app.register(expressPlugin({ dev }));
app.start();

Then edit package.json like this;

{
  "main": "dist/src/main.js",
  "scripts": {
    "dev": "cross-env NODE_ENV=development tsx watch src/main.ts",
    "start": "tsc && func start"
  }
}

Run Dev Server on locally, (For dev server use tsx watch for reloading run dev server using express )

npm run dev

Run Azure Functions on locally (Using Official Azure Functions Node.js)

npm start

Nammatham Packages

• core, Nammatham Core package for initializing Nammatham App

Available Adatpers

• azure-functions, Azure Functions Adapter for Nammatham, internally, Azure Functions in local dev mode is dependend on Express.js.

Available Plugins

• express, Express Plugin for run server. Nammatham itself doesn't contain any server, enabling this plugin to provide better DX than the original server e.g. Azure Functions Runtime
• trpc-azure-functions, provide tRPC Plugin for Azure Functions, inclduing express server for local testing.

Talks

Empowering TypeScript on Azure Functions with Nammatham, Azure Open Source Day @ Microsoft Thailand, 25 Mar 2023 (Thai speech, subtitle will added later)

• Slides: https://docs.google.com/presentation/d/1WUIXaUxXaiixZ2bgGCfx-f4Gdrmjl4RfbwKaEfAC6t4/edit?usp=sharing

Local Dev Setup

# Install dependencies
pnpm install
# Before dev (Update workspace to local dependencies)
pnpm pre-local && pnpm install
# While dev
pnpm dev
# After dev before submitting PRs (Update workspace to actual dependencies), `pnpm install` for making sure lockfile is correct.
pnpm post-local && pnpm install
# Release package
pnpm release

Inspiration

• Azure Functions .NET
• inversify-express-utils - We use inversify as a Dependency Injection Tool.
• Nestjs
• typestack/routing-controllers
• azure-middleware - Azure Functions Middleware Libray

Author

• Thada Wangthammang, Software Engineer, Thailand