DEVANSHU PATIL - DEV Community

DEVANSHU PATIL

Oct 16

Automating Repetitive Developer Tasks with Bash Scripts, Makefiles, and Git Hooks

#productivity #bash #git #tooling

3 min read

DEVANSHU PATIL

Oct 16

Technical Debt: Identifying, Measuring, and Refactoring Code Smells Safely

#softwareengineering #cleancode #productivity #management

3 min read

DEVANSHU PATIL

Oct 16

Writing Unit Tests That Don’t Break: Testing Behavior Rather Than Implementation Details

#testing #cleancode #programming #softwareengineering

3 min read

DEVANSHU PATIL

Oct 16

Defensive Programming: Handling Boundary Conditions, Nulls, and Malformed Inputs

#cleancode #programming #bestpractices #softwareengineering

3 min read

DEVANSHU PATIL

Oct 15

SOLID Principles Applied to Modern TypeScript and Java: Practical Refactoring Examples

#cleancode #programming #architecture #softwareengineering

3 min read

DEVANSHU PATIL

Oct 15

Database Sharding and Partitioning: Horizontal vs Vertical Scaling Strategies

#systemdesign #database #scalability #architecture

3 min read

DEVANSHU PATIL

Oct 15

Designing a Notification System: Handling Millions of Push, Email, and SMS Alerts

#systemdesign #backend #architecture #scalability

3 min read

DEVANSHU PATIL

Oct 15

CAP Theorem and Distributed Consensus in Plain English: Consistency, Availability, and Partitions

#systemdesign #distributed #computerscience #architecture

3 min read

DEVANSHU PATIL

Oct 15

Caching Strategies and Cache Invalidation: Cache-Aside, Write-Through, and Cache Stampede

#systemdesign #backend #performance #redis

3 min read

DEVANSHU PATIL

Oct 15

Designing a Distributed Rate Limiter: Token Bucket, Leaky Bucket, and Sliding Window Counters

#systemdesign #backend #redis #architecture

3 min read

DEVANSHU PATIL

Oct 14

System Design Fundamentals: Designing a Scalable URL Shortener (Bitly)

#systemdesign #backend #architecture #interviewprep

3 min read

DEVANSHU PATIL

Oct 14

Message Queues in Modern Backends: Decoupling Microservices with RabbitMQ and Redis

#backend #systemdesign #architecture #microservices

3 min read

DEVANSHU PATIL

Oct 14

Database Connection Pooling: Sizing, Leak Detection, and High-Concurrency Management

#database #backend #performance #java

3 min read

DEVANSHU PATIL

Oct 14

Implementing Idempotency in Payment and Order Processing APIs

#api #backend #systemdesign #architecture

3 min read

DEVANSHU PATIL

Oct 14

API Pagination Done Right: Offset-Based vs Cursor-Based (Keyset) Pagination

#api #database #backend #performance

3 min read

DEVANSHU PATIL

Oct 14

Designing Pragmatic REST APIs: Status Codes, URI Design, and Versioning Strategies

#api #backend #webdev #architecture

3 min read

DEVANSHU PATIL

Oct 13

Understanding HTTPS and SSL/TLS: Handshakes, Certificates, and Let’s Encrypt Certbot

#security #webdev #devops #https

3 min read

DEVANSHU PATIL

Oct 13

Traefik Proxy Explained: Dynamic Configuration and Automatic Let’s Encrypt SSL with Docker

#traefik #docker #devops #ssl

3 min read

DEVANSHU PATIL

Oct 13

VPS Hardening Checklist: Securing an Ubuntu Server from Scratch

#security #linux #devops #sysadmin

3 min read

DEVANSHU PATIL

Oct 13

Deploying Applications on Oracle Cloud Infrastructure (OCI) Free Tier: A Complete Guide

#cloud #oraclecloud #devops #linux

3 min read

DEVANSHU PATIL

Oct 13

Self-Hosting Modern Apps with Coolify: An Open-Source Heroku Alternative

#coolify #devops #docker #selfhosted

3 min read

DEVANSHU PATIL

Oct 13

Docker Compose in Production: Networking, Persistent Volumes, and Healthchecks

#docker #devops #backend #sysadmin

3 min read

DEVANSHU PATIL

Oct 12

Writing Production-Grade Dockerfiles: Multi-Stage Builds, Alpine Images, and Layer Caching

#docker #devops #deployment #containers

3 min read

DEVANSHU PATIL

Oct 12

Understanding Systemd: Writing, Managing, and Troubleshooting Custom Linux Services

#linux #devops #sysadmin #deployment

3 min read

DEVANSHU PATIL

Oct 12

Linux Permissions and Security: Chmod, Chown, Sudoers, and SSH Hardening

#linux #security #devops #sysadmin

3 min read

DEVANSHU PATIL

Oct 12

Essential Linux CLI for Developers: Process Management, Grep, Sed, Awk, and Pipes

#linux #devops #bash #productivity

3 min read

DEVANSHU PATIL

Oct 12

Building Production CI/CD Pipelines with GitHub Actions: Matrix Builds, Secrets, and Caching

#github #devops #ci #cd

3 min read

DEVANSHU PATIL

Oct 12

Git Disaster Recovery: Recovering Lost Commits and Branches Using git reflog

#git #productivity #github #development

3 min read

DEVANSHU PATIL

Oct 11

Git Rebase vs Merge: Maintaining a Clean, Linear Git History Without Losing Context

#git #github #devops #cleancode

3 min read

DEVANSHU PATIL

Oct 11

Demystifying Git Internals: Blobs, Trees, Commits, and the Object Database

#git #github #devops #programming

3 min read

DEVANSHU PATIL

Oct 11

Modern JavaScript Array and Object Manipulation: Shallow vs Deep Cloning and Immutability

#javascript #webdev #cleancode #programming

3 min read

DEVANSHU PATIL

Oct 11

JavaScript Scopes, Closures, and the Execution Context

#javascript #webdev #programming #interviewprep

3 min read

DEVANSHU PATIL

Oct 11

JavaScript Prototypal Inheritance vs ES6 Classes: What Actually Happens Under the Hood

#javascript #webdev #programming #computerscience

3 min read

DEVANSHU PATIL

Oct 11

Building High-Performance APIs with FastAPI: Pydantic Validation and Dependency Injection

#python #fastapi #backend #api

3 min read

DEVANSHU PATIL

Oct 10

Python Type Hints and Static Type Checking with Mypy in Production

#python #cleancode #development #softwareengineering

3 min read

DEVANSHU PATIL

Oct 10

Python Decorators from First Principles: Function Closures to Parametric Class Decorators

#python #programming #cleancode #development

3 min read

DEVANSHU PATIL

Oct 10

Python Generators and Iterators: Memory-Efficient Processing of Huge Datasets

#python #programming #cleancode #data

3 min read

DEVANSHU PATIL

Oct 10

Python Asynchronous Programming: Asyncio Event Loop, Coroutines, and Tasks

#python #async #backend #programming

3 min read

DEVANSHU PATIL

Oct 10

SQL vs NoSQL: Making the Right Architectural Choice for Modern Applications

#database #systemdesign #architecture #backend

3 min read

DEVANSHU PATIL

Oct 10

Optimizing Slow MySQL Queries: EXPLAIN Analysis, Index Merging, and Query Rewriting

#mysql #sql #performance #database

3 min read

DEVANSHU PATIL

Oct 9

MySQL Transaction Isolation Levels: Dirty Reads, Non-Repeatable Reads, and Phantom Reads

#mysql #database #sql #systemdesign

3 min read

DEVANSHU PATIL

Oct 9

MySQL InnoDB Storage Engine Deep Dive: B+ Trees, Clustered Indexes, and Buffer Pools

#mysql #database #backend #sql

3 min read

DEVANSHU PATIL

Oct 9

Mastering PostgreSQL Transactions: Isolation Levels, Phantom Reads, and Serialization Anomalies

#postgres #database #sql #backend

3 min read

DEVANSHU PATIL

Oct 9

MongoDB Indexing Strategies: ESR Rule, Explain Plans, and Performance Tuning

#mongodb #database #backend #performance

3 min read

DEVANSHU PATIL

Oct 9

Component Design Patterns in React: Compound Components and Render Props in Practice

#react #javascript #architecture #webdev

4 min read

DEVANSHU PATIL

Oct 9

Server State vs Client State in React: Why TanStack Query Changes Everything

#react #webdev #frontend #javascript

4 min read

DEVANSHU PATIL

Oct 8

Building Reusable Custom React Hooks: Form State, Debounce, and Intersection Observers

#react #javascript #cleancode #webdev

4 min read

DEVANSHU PATIL

Oct 8

Optimizing React Re-Renders: When to Use useMemo, useCallback, and React.memo

#react #javascript #performance #frontend

4 min read

DEVANSHU PATIL

Oct 8

Mastering React Concurrency: useTransition, useDeferredValue, and Non-Blocking UI Updates

#react #javascript #frontend #webdev

5 min read

DEVANSHU PATIL

Oct 8

Node.js Clustering and Worker Threads: Scaling CPU-Bound Tasks on Multi-Core Servers

#node #performance #backend #concurrency

5 min read

DEVANSHU PATIL

Oct 8

JWT Authentication Architecture: Access Tokens, Refresh Tokens, and Secure HttpOnly Cookies

#security #node #auth #webdev

5 min read

DEVANSHU PATIL

Oct 8

Securing Node.js REST APIs: Rate Limiting, Helmet Headers, and CORS In-Depth

#node #express #security #webdev

5 min read

DEVANSHU PATIL

Oct 7

Robust Error Handling and Async Route Wrappers in Express.js

#express #node #javascript #backend

4 min read

DEVANSHU PATIL

Oct 7

Production-Grade Express.js Architecture: Layered Controller, Service, and Repository Pattern

#express #node #backend #architecture

5 min read

DEVANSHU PATIL

Oct 7

Streaming Large Files in Node.js: Readable, Writable, and Transform Streams

#node #backend #javascript #performance

4 min read

DEVANSHU PATIL

Oct 7

The Node.js Event Loop Under the Hood: Timers, I/O Polling, and Microtasks

#node #javascript #backend #programming

4 min read

DEVANSHU PATIL

Oct 7

Heap and Priority Queue Invariants: Implementing Min-Heap from Scratch and Top-K Elements

#dsa #algorithms #datastructures #interviewprep

5 min read

DEVANSHU PATIL

Oct 7

Trie Data Structure: Efficient Prefix Matching and Autocomplete Implementation

#dsa #algorithms #programming #datasta

5 min read

DEVANSHU PATIL

Oct 6

Dynamic Programming Demystified: From Memoization to Tabulation and Space Optimization

#dsa #algorithms #leetcode #interviewprep

5 min read

DEVANSHU PATIL

Oct 6

Union-Find (Disjoint Set Union): Path Compression and Union by Rank Explained

#dsa #algorithms #computerscience #leetcode

4 min read

Writing Debut