Web Development

What is CRUD? CRUD stands for Create, Read, Update, Delete — the four basic operations that almost every application or service performs on data. Whether you’re developing a web API, managing a database, or building a mobile app, CRUD operations are at the core of how data is handled. Let’s break it down in simple terms: Create – Add a new entry to the system Read – Retrieve data from the system Update – Modify existing data Delete – Remove data from the system These operations map directly to HTTP methods in RESTful APIs: ...

What is REST? REST (Representational State Transfer) is an architectural style for designing networked applications. It’s not a protocol or a standard, but rather a set of principles that use HTTP to perform CRUD operations (Create, Read, Update, Delete) on resources. Why REST? REST became popular because it’s simple, stateless, and leverages existing HTTP methods like GET, POST, PUT, DELETE. Think of REST like a restaurant: You (client) place an order (request) The kitchen (server) prepares the food (response) You don’t need to know how they made it; you just get the result Core Principles Stateless: Each request contains all necessary information. Server doesn’t store session. Client-Server: Decouples frontend and backend. Cacheable: Improves performance by caching responses. Uniform Interface: Resources are accessed via standard URIs and HTTP methods. Layered System: Architecture can have multiple layers (like proxies, gateways). HTTP Methods Method Action GET Read POST Create PUT Update DELETE Delete Example GET /users/123 This fetches user with ID 123. ...

Overview Ruby is a dynamic, expressive language with a strong history in web development. Several frameworks have emerged over the years, offering different trade-offs for speed, flexibility, and structure. In this article, we’ll explore the most popular Ruby web frameworks and help you choose the right one for your project. 1. Ruby on Rails The most popular and full-featured Ruby framework. Pros: Convention over configuration Built-in ORM (ActiveRecord), migrations, mailers, etc. Large community and ecosystem Cons: Heavy for small applications Learning curve for beginners Example: # config/routes.rb Rails.application.routes.draw do get '/hello', to: 'welcome#index' end # app/controllers/welcome_controller.rb class WelcomeController < ApplicationController def index render plain: "Hello from Rails!" end end 2. Sinatra A lightweight DSL for quickly creating web applications. ...