Dmytro Kozlov culttm

INTRO

Concurrency is a domain I have wanted to explore for a long time because the locks and the race conditions have always intimidated me. I recall somebody suggesting concurrency patterns in golang because they said "you share the data and not the variables".

Amused by that, I searched for "concurrency in golang" and bumped into this awesome slide by Rob Pike: https://talks.golang.org/2012/waza.slide#1 which does a great job of explaining channels, concurrency patterns and a mini-architecture of load-balancer (also explains the above one-liner).

Let's dig in:

Goroutines

Про токены, JSON Web Tokens (JWT), аутентификацию и авторизацию. Token-Based Authentication

Last major update: 25.08.2020

Что такое авторизация/аутентификация
Где хранить токены
Как ставить куки ?
Процесс логина
Процесс рефреш токенов
Кража токенов/Механизм контроля токенов

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	/* function that used as middleware */

	accessToken: async (name) => {
	if (typeof document === "undefined") return "";
	let token = document.cookie
	.split(";")
	.filter((cookie) => cookie.startsWith("token"))[0];

	if (!token) {
	const response = await fetch("/api/refresh", { method: "POST" });

	map $sent_http_content_type $expires {
	"text/html" epoch;
	"text/html; charset=utf-8" epoch;
	default off;
	}

	map $http_upgrade $connection_upgrade {
	default upgrade;
	'' close;
	}

	// app/modules/authentication/authentication.controller.ts

	import { Body, Controller, Post } from '@nestjs/common'

	import { RegisterRequest } from './requests'

	import { User } from '../../modules/user'

	import { UsersService } from '../users/users.service'

	import { Module, Global, DynamicModule } from '@nestjs/common'
	import { EnvModule } from './env.module'
	import { EnvService } from './env.service'
	import { TypeOrmModule } from '@nestjs/typeorm'

	function DatabaseOrmModule (): DynamicModule {
	const config = new EnvService().read()

	return TypeOrmModule.forRoot({
	type: config.DB_TYPE,

	let isRefreshing = false;
	let refreshSubscribers = [];

	const instance = axios.create({
	baseURL: Config.API_URL,
	});

	instance.interceptors.response.use(response => {
	return response;
	}, error => {

	#!/bin/bash

	set -euo pipefail

	openssl req -new -text -passout pass:abcd -subj /CN=localhost -out server.req -keyout privkey.pem
	openssl rsa -in privkey.pem -passin pass:abcd -out server.key
	openssl req -x509 -in server.req -text -key server.key -out server.crt
	chmod 600 server.key
	test $(uname -s) = Linux && chown 70 server.key
	docker run -d --name postgres -e POSTGRES_HOST_AUTH_METHOD=trust -v "$(pwd)/server.crt:/var/lib/postgresql/server.crt:ro" -v "$(pwd)/server.key:/var/lib/postgresql/server.key:ro" postgres:12-alpine -c ssl=on -c ssl_cert_file=/var/lib/postgresql/server.crt -c ssl_key_file=/var/lib/postgresql/server.key

	/**
	* Changes value to past tense.
	* Simple filter does not support irregular verbs such as eat-ate, fly-flew, etc.
	* http://jsfiddle.net/bryan_k/0xczme2r/
	*
	* @param {String} value The value string.
	*/
	Vue.filter('past-tense', function(value) {
	// Slightly follows http://www.oxforddictionaries.com/us/words/verb-tenses-adding-ed-and-ing
	var vowels = ['a', 'e', 'i', 'o', 'u'];