Luciano Mammino lmammino

This is the code used the article Automated SMS notifications with AWS Lambda and Twilio APIs published on Twilio's blog

Here follows a detailed description of every part of the code:

The first thing we do is to import the request-promise-native library.
Then we declare our handler function by respecting the expected signature with event, context and callback as described previously.
Inside the handler, we define some constants that we will use as configuration in the rest of the code. Be sure to fill in all the values that are specific to your account.
At this point we are ready to perform the first API request to get the exchange rate from Fixer.io.
Since request-promise-native returns a promise, we have to write a then and a catch method to handle the asynchronous control flow. Inside the then we have get the response data from the API call and we can use it to extract the current exchange rate. We also log the result, which is a go

This is an example of a very common Node.js design pattern: a serial asynchronous iteration over a collection (array) using callbacks.

If you are interested in learning more about common (and even less common!) Node.js design patterns, you should check out the book Node.js Design Patterns by Mario Casciaro and Luciano Mammino (spoiler alert: that's me :P):

https://www.nodejsdesignpatterns.com/

To run the example:

Pass arrays to shared libraries from python using C types

This example implements a simple shared library in C.

This library called libfifthy exposes a function called add_fifthy which takes an array of integers and modify it in place by adding 50 to all elements.

Then there's some code in python which builds an array and invokes the add_fifthy from the shared library and reads the altered array values.

Usage

Allows to compile and run a Rust program under unix systems:

./rrun <rust_file_name> <runtime_arguments>

For instance:

./rrun args 1 2 3 4 5

	const person = {
	name: 'George',
	surname: 'Boole',
	get fullname () {
	console.log('** getting fullname')
	return this.name + ' ' + this.surname
	},
	set fullname (fullname) {
	console.log('** setting fullname to', fullname)
	let parts = fullname.split(' ')

	#!/usr/bin/env python

	# Usage
	# ./gen_dkim.py mail.yourdomain.tld

	import sys
	from subprocess import call
	from os import devnull

	if len(sys.argv) < 2:

	/******/ (function(modules) { // webpackBootstrap
	/******/ // The module cache
	/******/ var installedModules = {};
	/******/
	/******/ // The require function
	/******/ function __webpack_require__(moduleId) {
	/******/
	/******/ // Check if module is in cache
	/******/ if(installedModules[moduleId]) {
	/******/ return installedModules[moduleId].exports;

	package main

	import (
	"fmt"
	"./ldap"
	)

	var filter = "(&(&(&(& (mailnickname=) (\| (&(objectCategory=person)(objectClass=user)(\|(homeMDB=)(msExchHomeServerName=*))) )))(objectCategory=user)(department=IT)(physicalDeliveryOfficeName=Amsterdam)))"

	func main() {

	'use strict'

	const { readFileSync } = require('fs')
	const PngTerm = require('./pngTerm')

	const [,, filePath] = process.argv
	const pngBuffer = readFileSync(filePath)

	const image = new PngTerm(pngBuffer)

	{
	"Messages": [
	{
	"Body": "{\n \"Type\" : \"Notification\",\n \"MessageId\" : \"abcdef01-2345-6789-0abc-defg123456783\",\n \"TopicArn\" : \"arn:aws:sns:eu-west-1:123456789012:ticketless-ticketPurchased\",\n \"Message\" : \"{\\\"ticket\\\":{\\\"id\\\":\\\"abcdef01-2345-6789-0abc-defg123456784\\\",\\\"createdAt\\\":1509980177897,\\\"name\\\":\\\"Alex Smith\\\",\\\"email\\\":\\\"[email protected]\\\",\\\"gig\\\":\\\"nirvana-cork-1991\\\"},\\\"gig\\\":{\\\"capacity\\\":2300,\\\"collectionPoint\\\":\\\"29 South Main Street, Centre, Cork City, Co. Cork, Ireland\\\",\\\"collectionTime\\\":\\\"13:00\\\",\\\"slug\\\":\\\"nirvana-cork-1991\\\",\\\"originalDate\\\":\\\"1991-08-20\\\",\\\"venue\\\":\\\"Cavern Club\\\",\\\"bandName\\\":\\\"Nirvana\\\",\\\"city\\\":\\\"Cork\\\",\\\"date\\\":\\\"2019-06-21\\\",\\\"image\\\":\\\"nirvana.jpg\\\",\\\"year\\\":\\\"1991\\\",\\\"collectionPointMap\\\":\\\"map-nirvana-cork-1991.png\\\",\\\"description\\\":\\\"Lorem Ipsum\\\",\\\"price\\\":\\\"1666.60\\\"}}\",\n \"