Alex Aleluia alexaleluia12

PostgreSQL is Enough

Background and Cron Jobs

Link to search your gists.

https://gist.github.com/search?q=user%3A%40me&ref=searchresults
Uses @me to refer to itself in the gist search query.

Manually

Type this into Github Gist Search (https://gist.github.com/)

user:BoQsc your search query

Asynchronous Programming and Microservices: Comparing Javascript, Erlang and Python with RabbitMQ + Celery

This article is about building asynchronous microservices. I'll compare how this can be achieved in Javascript and Erlang natively, and in Python using RabbitMQ and Celery.

But why?

My first encounter with asynchronous programming in python was when building a web backend. Upon completing a purchase, the user should eventually receive a PDF invoice by email. This didn't have to happen immediately during the request; in fact, it was better if it didn't, so as not to slow down the purchase needlessly. At the time I wasn't sure how to implement an asynchronous workflow in python, but a quick google search quickly lead me to Celery and RabbitMQ. Celery is very easy to use; the only pain is setting up a message broker -- RabbitMQ, in my case. Once you're set up, running a task in the background is as easy as writing, in myapp.py,

printenet to print environment variables
printenv | grep APPLICATION to filter for APPLICATION
export $(./path/to/file) to export file's content

	#!/bin/bash

	# Usage: ./init-ts-project.sh my-new-project

	## Prerequisites:
	# Install yarn: https://classic.yarnpkg.com/en/docs/install/#windows-stable
	# Install jq: https://jqlang.github.io/jq/download/

	PROJECT_NAME=$1

	package com.example.jetpackcomposeplayground

	import android.content.Context
	import android.graphics.Bitmap
	import android.graphics.Picture
	import android.net.Uri
	import android.os.Environment
	import androidx.compose.foundation.layout.Column
	import androidx.compose.foundation.layout.fillMaxSize
	import androidx.compose.foundation.layout.padding

	const fs = require('fs')

	function readFile (filename) {
	if (fs.existsSync(filename)) {
	return fs.readFileSync(filename, 'utf8')
	}
	throw new Error('Cannot find file ' + filename)
	}

	describe('mocking individual fs sync methods', () => {


	Intro to Progressive Web Apps - https://br.udacity.com/course/intro-to-progressive-web-apps--ud811
	Web Tooling & Automation - https://br.udacity.com/course/web-tooling-automation--ud892
	Offline Web Applications - https://br.udacity.com/course/offline-web-applications--ud899