Aryan Ahmed thearyanahmed

title: Setting Up Laravel in Ubuntu / DigitalOcean keywords: servers, laravel, coderstape, coder's tape description: Let's take a look at settting up a server from scratch for Laravel. date: April 1, 2019 tags: servers, laravel permalink: setting-up-laravel-in-ubuntu-digitalocean img: https://coderstape.com/storage/uploads/GZTXUbyGum2xeUZM9qBD5aPv8EKLwG3C8RGcRon4.jpeg author: Victor Gonzalez authorlink: https://github.com/vicgonvt

How to setup next.js app on nginx with letsencrypt

next.js, nginx, reverse-proxy, ssl

1. Install nginx and letsencrypt

$ sudo apt-get update
$ sudo apt-get install nginx letsencrypt

Also enable nginx in ufw

Rough Notes about CQRS and ES

Once upon a time…

I once took notes (almost sentence by sentence with not much editing) about the architectural design concepts - Command and Query Responsibility Segregation (CQRS) and Event Sourcing (ES) - from a presentation of Greg Young and published it as a gist (with the times when a given sentence was heard).

I then found other summaries of the talk and the gist has since been growing up. See the revisions to know the changes and where they came from (aka the sources).

It seems inevitable to throw Domain Driven Design (DDD) in to the mix.

Golang Workers / Job Queue

A running example of the code from:

This gist creates a working example from blog post, and a alternate example using simple worker pool.

TLDR: if you want simple and controlled concurrency use a worker pool.

	package main

	import (
	"context"
	"flag"
	"fmt"
	"log"
	"net/http"
	"os"
	"os/signal"

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	package main

	import (
	"math"
	"fmt"
	)

	//:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
	//::: :::
	//::: This routine calculates the distance between two points (given the :::