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Backend

Backend (ya server-side) web applications aur software systems ka woh hissa hai jo users ko…

Overview
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Backend — Quick Facts

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Property: Detail

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Full Name: Backend (Server-Side)

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Also Known As: Server-side, Back-end, Back end

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Category: Web Application Architecture /…

Topic 1
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Infobox

📚 | Property | Detail | |---|---| | Full Name | Backend (Server-Side) | | Also Known As |…
Topic 2
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History aur Evolution

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Pehle web static tha — sirf HTML…

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CGI (Common Gateway Interface)…

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Har request pe naya process spawn…

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1993 me NCSA HTTPd server ne CGI…

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Core Concept

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Frontend = dining area (jo…

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Backend = kitchen (jo customer…

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API = waiter (frontend aur backend…

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Database = pantry/fridge…

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Backend Architecture Layers

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HTTP requests receive karna

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Input validation aur sanitization

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Route matching (URL → controller…

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Response formatting (JSON…

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Request-Response Flow Diagram

🔑 `mermaid flowchart TD A["Client\n(Browser / Mobile App)"] -->|"HTTP Request\n(GET…
Topic 6
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Backend Technologies

✨ | Language | Popular Framework(s) | Strengths | Common Use Case | |---|---|---|---| |…
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APIs aur Communication

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Sabse common API style — industry…

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HTTP methods use karta hai: GET,…

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Resource-based URLs: /api/users,…

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Stateless: har request independent…

Topic 8
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Database Layer

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Structured data ke liye: tables,…

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ACID properties guarantee karti…

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Examples: PostgreSQL, MySQL,…

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Best for: financial data, user…

Topic 9
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Backend vs Frontend

📚 | Aspect | Backend | Frontend | |---|---|---| | Location | Server pe run hota hai | User…
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Scaling Backend

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Same server me zyada RAM, CPU,…

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Simple but limited — ek machine ki…

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Expensive at high end — 64-core…

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Suitable for: database servers,…

Topic 11
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Security

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Username/password — password…

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OAuth 2.0 / OpenID Connect —…

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JWT (JSON Web Tokens) — stateless…

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API keys — service-to-service…

Topic 12
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Modern Backend Patterns

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Sab code ek application me — ek…

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Simple deployment, simple…

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Scale karna mushkil jab app bada…

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Best for: small-medium apps, MVPs,…

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Real-World Applications

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Product catalog management,…

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Order processing pipeline — cart →…

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Payment gateway integration…

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Recommendation engine — "tumhe yeh…

Topic 14
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Interview Perspective

✨ Common Questions Q: Backend kya hai ek line me? A: Backend web application ka server-side…
Topic 15
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Common Mistakes

🌟 | # | Mistake | Kyu Galat Hai | Sahi Approach | |---|---|---|---| | 1 | Database…
Topic 16
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Best Practices

🚀 1. Security First — Input validation, parameterized queries, HTTPS, secrets management,…
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Glossary

📚 | Term | Definition | |---|---| | API | Application Programming Interface — backend aur…
Comparison
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Backend vs Frontend

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Location: Server pe run hota hai

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Visibility: User ko dikhta nahi

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Languages: Python, Java, Go, PHP, C#

Diagram
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Visual Flow

📊 Diagram visualization — details in narration
Related Topics

See Also

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Frontend

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API

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REST

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GraphQL

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Database

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Microservices

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

Backend ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

Backend ka 'Full Name' kya hai?

Complete! 🎉
COMPLETE

Backend Complete!

Aliens Wiki · HIEN · Cinematic Knowledge

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Backend Complete

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