Microservices vs Monolith

Monolith म्हणजे संपूर्ण application एकाच codebase मध्ये — एकाच process मध्ये deploy. Microservices म्हणजे application multiple small independent services मध्ये तोडणे — प्रत्येक service independently deploy होतो.

Monolith:
┌─────────────────────────────────────┐
│  E-commerce App                     │
│  ┌──────┐ ┌──────┐ ┌─────────────┐ │
│  │Users │ │Orders│ │  Payments   │ │
│  └──────┘ └──────┘ └─────────────┘ │
│  ┌──────────────────────────────┐   │
│  │  Shared Database             │   │
│  └──────────────────────────────┘   │
└─────────────────────────────────────┘
One deploy, one codebase, one DB

Microservices:
[User Service] ←──→ [Order Service] ←──→ [Payment Service]
    │                    │                      │
[User DB]           [Order DB]            [Payment DB]

Each independently deployed, scaled, maintained

Monolith — Pros & Cons

• ▸✅ Simple development — सगळं एकाच codebase मध्ये
• ▸✅ Easy debugging — single process
• ▸✅ No network latency — function calls directly
• ▸✅ Small teams साठी fast to build
• ▸❌ Scale करणे कठीण — पूर्ण app scale करावं लागतं
• ▸❌ Tech stack lock-in
• ▸❌ Large teams मध्ये merge conflicts, slow deployment

Microservices — Pros & Cons

• ▸✅ Independent scaling — फक्त payment service scale करा
• ▸✅ Technology flexibility — प्रत्येक service वेगळी language
• ▸✅ Independent deployment — एक service deploy, बाकी चालू
• ▸✅ Team autonomy — प्रत्येक team owns one service
• ▸❌ Distributed system complexity — network failures, latency
• ▸❌ Data consistency कठीण — multiple DBs
• ▸❌ Testing कठीण — integration tests complex
• ▸❌ Small teams साठी overkill