1.Introduction
A Full Stack Core Programmer is proficient in both front-end (client-side) and back-end (server-side) development, working with databases, servers, and APIs. Core Technologies:- Front-End: HTML, CSS, JavaScript, React.js, Angular, Vue.js
- Back-End: Node.js, Python (Django, Flask), Java (Spring Boot), C# (.NET), PHP
- Database: MySQL, PostgreSQL, MongoDB
- Version Control: Git, GitHub
- DevOps & Deployment: Docker, AWS, CI/CD
2.Front-End Development
HTML & CSS Essentials
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>My Web Page</title>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<h1>Hello, World!</h1>
</body>
</html>
body {
font-family: Arial, sans-serif;
background-color: #f4f4f4;
}
h1 {
color: blue;
}
document.querySelector(".btn").addEventListener("click", () => {
alert("Button Clicked!");
});
3.Front-End Frameworks & Libraries
React.js Basics
import React from "react";
function App() {
return <h1>Hello, React!</h1>;
}
export default App;
const app = Vue.createApp({
data() {
return { message: "Hello Vue!" };
}
}).mount("#app");
4.Back-End Development (Node.js, Python, Java, C#)
Node.js & Express.js
const express = require("express");
const app = express();
app.get("/", (req, res) => {
res.send("Hello, World!");
});
app.listen(3000, () => console.log("Server running on port 3000"));
from flask import Flask
app = Flask(__name__)
@app.route("/")
def home():
return "Hello, Flask!"
if __name__ == "__main__":
app.run(debug=True)
@RestController
public class HelloController {
@GetMapping("/")
public String hello() {
return "Hello, Spring Boot!";
}
}
using Microsoft.AspNetCore.Mvc;
[Route("/")]
public class HomeController : Controller
{
public string Index() => "Hello, .NET Core!";
}
5.Database Management (MySQL, PostgreSQL, MongoDB) ️
SQL Database Example (MySQL/PostgreSQL)
CREATE TABLE users (
id SERIAL PRIMARY KEY,
name VARCHAR(100),
email VARCHAR(100) UNIQUE
);
const mongoose = require("mongoose");
mongoose.connect("mongodb://localhost:27017/mydb", { useNewUrlParser: true });
const UserSchema = new mongoose.Schema({ name: String, age: Number });
const User = mongoose.model("User", UserSchema);
User.create({ name: "Alice", age: 25 });
6.Authentication & Security
JWT Authentication in Node.js
const jwt = require("jsonwebtoken");
const token = jwt.sign({ id: 123 }, "secretkey", { expiresIn: "1h" });
jwt.verify(token, "secretkey", (err, decoded) => {
if (err) console.log("Invalid Token");
else console.log("User ID:", decoded.id);
});
const bcrypt = require("bcrypt");
const password = "mypassword";
const hashedPassword = bcrypt.hashSync(password, 10);
console.log(bcrypt.compareSync("mypassword", hashedPassword)); // true
7.RESTful API Development
Basic API with Express.js
const express = require("express");
const app = express();
app.use(express.json());
app.get("/users", (req, res) => {
res.json([{ id: 1, name: "John Doe" }]);
});
app.listen(3000, () => console.log("API running on port 3000"));
from rest_framework import viewsets
from .models import User
from .serializers import UserSerializer
class UserViewSet(viewsets.ModelViewSet):
queryset = User.objects.all()
serializer_class = UserSerializer
8.Deployment & DevOps
Deploying with Docker 1.Create a Dockerfile
FROM node:14
WORKDIR /app
COPY package.json .
RUN npm install
COPY . .
CMD ["node", "server.js"]
EXPOSE 3000
docker build -t myapp .
docker run -p 3000:3000 myapp
sudo apt update
sudo apt install nodejs npm
pm2 start server.js
pm2 save
pm2 startup
9.Version Control with Git & GitHub
Git Commands| Command | Description |
| git init | Initialize a repository |
| git clone <repo> | Clone a repository |
| git add . | Stage changes |
| git commit -m “Message” | Commit changes |
| git push origin main | Push to remote repo |
| git pull origin main | Pull latest changes |
10.Testing & Debugging
Unit Testing with Jest (JavaScript)
const sum = (a, b) => a + b;
test("adds 1 + 2 to equal 3", () => {
expect(sum(1, 2)).toBe(3);
});
from django.test import TestCase
from .models import User
class UserTestCase(TestCase):
def test_user_creation(self):
user = User.objects.create(name="Alice")
self.assertEqual(user.name, "Alice")
11.Full Stack Core Programming Roadmap
- Master Core Programming (JavaScript, Python, Java, C#).
- Learn Front-End Frameworks (React, Vue, Angular).
- Understand Back-End with Node.js, Django, Spring Boot, .NET.
- Work with Databases (MySQL, PostgreSQL, MongoDB).
- Build RESTful APIs & Authentication.
- Version Control with Git & GitHub.
- Deploy Applications using Docker & AWS.
- Write Unit Tests for Reliability.
