🚀 30 Days Backend Challenge

Welcome to my 30 Projects in 30 Days challenge! 🎯 The goal is to improve backend skills across multiple programming languages by building one project per day.

Each project is small but practical — covering APIs, authentication, databases, microservices, CLI tools, and automation scripts.

Table of contents

• Project structure
• Daily Projects
• Objectives
• How to run
• Author

📂 Project Structure

30DaysBackendChallenge/
├── day01-php-login/
│   ├── dashboard.php
│   ├── index.php
│   ├── login.php
│   ├── README.md
│   ├── register.php
│   ├── users.txt
│   └── assets/
│       ├── app.js
│       ├── icon-lock.svg
│       ├── icon-shield.svg
│       ├── icon-speed.svg
│       ├── icon-theme.svg
│       ├── illustration.svg
│       └── style.css
├── day02-python-url-shortener/
├── day03-node-task-api/
├── day04-go-quotes-api/
├── day05-ruby-cli-todo/
├── day06-csharp-file-uploader/
├── day07-bash-backup-script/
├── day08-node-jwt-auth/
├── day09-django-blog/
├── day10-laravel-cart-api/
├── day11-go-student-api/
├── day12-rust-password-manager/
├── day13-sql-library-schema/
├── day14-java-banking-api/
├── day15-node-payment-gateway/
├── day16-fastapi-weather/
├── day17-php-forum-api/
├── day18-go-chat-server/
├── day19-rails-event-booking/
├── day20-csharp-inventory-api/
├── day21-bash-python-deploy/
├── day22-node-redis-cache/
├── day23-fastapi-image-service/
├── day24-laravel-email-api/
├── day25-go-rate-limiter/
├── day26-rust-log-parser/
├── day27-java-roles-api/
├── day28-csharp-notification-service/
├── day29-django-social-api/
└── day30-microservices-project/

📅 Daily Projects

Day	Project	Language / Stack	Description
01	🔑 Login & Registration System	PHP	Basic user signup/login with file storage
02	🔗 URL Shortener	Python (Flask)	Shorten and manage URLs with SQLite
03	📋 Task Manager API	Node.js (Express)	CRUD API for managing tasks
04	📜 Quotes API	Go	Serve random quotes in JSON format
05	📝 CLI Todo List	Ruby	Terminal-based todo list manager
06	📂 File Uploader	C# (.NET)	Backend to upload and save files
07	💾 Backup Script	Bash	Automate file backups with cron
08	🔒 JWT Authentication API	Node.js	Secure login/register with JWT & bcrypt
09	✍️ Blog Backend	Python (Django)	Blog CRUD with PostgreSQL
10	🛒 E-commerce Cart API	PHP (Laravel)	Cart endpoints: add/remove/view
11	🎓 Student Records API	Go + MongoDB	CRUD API for managing students
12	🔐 Password Manager	Rust	CLI app to store and retrieve passwords
13	📚 Library DB Schema	SQL	Database schema & queries for a library
14	💳 Banking Transactions API	Java (Spring Boot)	Transfer & balance management
15	💵 Payment Gateway Simulation	Node.js	API with webhook handling
16	🌦️ Weather API Wrapper	Python (FastAPI)	Proxy API that fetches weather data
17	💬 Forum Backend	PHP + MySQL	Forum posts & comments API
18	💻 Chat Server	Go (WebSockets)	Real-time chat server
19	🎟️ Event Booking System	Ruby on Rails	Events & booking CRUD
20	📦 Inventory API	C# (.NET Core)	Manage product inventory
21	🚀 Deployment Script	Bash + Python	Auto-pull & restart project
22	⚡ Caching Service	Node.js + Redis	API with caching for fast responses
23	🖼️ Image Processing Service	Python (FastAPI)	Upload & resize images
24	📧 Email Verification API	PHP (Laravel)	Email verification & reset system
25	⏱️ Rate Limiter API	Go	Prevent abuse with request limits
26	📊 Log Parser	Rust	CLI tool to parse logs & save in DB
27	👥 User Roles API	Java (Spring Boot)	Roles & permissions management
28	🔔 Notification Service	C# + SignalR	Real-time push notifications
29	🌍 Social Media API	Django REST	Posts, likes & user interactions
30	🌐 Microservices Project	Node.js + Python + Go	Auth, Posts & Notifications microservices

Objectives

Day 02 — URL Shortener (Python / Flask)

A small, practical URL shortener built with Flask and SQLite. The service provides a minimal web UI to create short links, a JSON API for programmatic use, and tests that run against an in-memory SQLite database.

Key features

• Shorten long URLs to short codes
• Redirect short codes to original URLs and track click counts
• Optional expiry for short links
• Minimal, responsive frontend with copy-to-clipboard

Quick start (PowerShell)

cd day02-python-url-shortener
python -m venv .venv
.\.venv\Scripts\Activate.ps1
pip install -r requirements.txt
# copy .env.example to .env and edit values if needed
$Env:FLASK_APP = 'app:create_app()'
$Env:FLASK_ENV = 'development'
flask run

Run tests

cd day02-python-url-shortener
.\.venv\Scripts\Activate.ps1
pytest -q

See day02-python-url-shortener/README.md for full implementation notes and advanced configuration.

• Build 30 backend projects across different languages and stacks.
• Gain practical experience with APIs, databases, caching, authentication, and deployment.
• Produce a portfolio of small, demonstrable backend projects.

How to run

Each project folder contains its own README.md with a short goal, tech stack, and run instructions.

Example (Day 1):

cd day01-php-login
php -S localhost:8000

Author

Enya Elvis ✨ Backend Developer | Full-stack Enthusiast | Tech Explorer

Each day this repo will be updated with a new project. Stay tuned! 🎉