S. M. Shamir Imtiaz Ivanshamir

Create the Flask REST API

from flask import Flask, jsonify

app = Flask(__name__)

@app.route('/')
def home():
    return jsonify(message="Hello, World!")

PostgreSQL is Enough

Background and Cron Jobs

https://github.com/citusdata/pg_cron

Commands:

Let's familiar with some necessary terms:

Network interfaces allow us to establish communication between a network and a device.
routes define traffic paths. Definition: a route in networking specifies the path for network traffic from source to destination.
iptables configures packet filtering. Definition: iptables is a user-space utility for configuring packet filter rules in the Linux kernel's Netfilter framework. Whatis Netfilter framework: iptables operates within the Netfilter framework, which is a part of the Linux kernel responsible for packet filtering, network address translation (NAT), and other packet mangling tasks. Netfilter provides hooks within the Linux networking stack that allow iptables to intercept packets at various points in their journey through the system and apply the configured rules to them.
lo is a local loopback interface for testing,
eth0 is the primary Ethernet interface for external connections.

First update apt: sudo apt update -y

Redis offers a great deal of support for developing efficient caching mechanisms. It takes only a couple of minutes to implement a cache mechanism and get it working with any application. Follow along to learn 25 most common Redis Interview Questions and Answers for your next senior web developer interview.

Q1: What is Redis?

Topic: Redis
Difficulty: ⭐

Redis, which stands for Remote Dictionary Server, is a fast, open-source, in-memory key-value data store for use as a database, cache, message broker, and queue.

You can run atomic operations, like appending to a string; incrementing the value in a hash; pushing an element to a list; computing set intersection, union and difference; or getting the member with highest ranking in a sorted set.

	{
	"compilerOptions": {
	/* Base Options: */
	"esModuleInterop": true,
	"forceConsistentCasingInFileNames": true,
	"skipLibCheck": true,
	"target": "es2022",
	"verbatimModuleSyntax": true,
	"allowJs": true,
	"resolveJsonModule": true,

	class Node {
	constructor(value) {
	this.value = value;
	this.next = null;
	this.previous = null;
	}
	}

	class Deque {
	constructor() {

	class Node {
	constructor(value) {
	this.value = value;
	this.next = null;
	}
	}

	class Queue {
	constructor() {
	this.head = null;

	class Node {
	constructor(value) {
	this.value = value;
	this.next = null;
	}
	}

	class Stack {
	constructor() {
	this.head = null;


	class Node {
	constructor(value, next = null) {
	this.value = value;
	this.next = next;
	}
	}

	class LinkedList {
	constructor(data) {

	# Redis Cheatsheet
	# All the commands you need to know


	redis-server /path/redis.conf # start redis with the related configuration file
	redis-cli # opens a redis prompt


	# Strings.