Skip to main content
HashnodeJayesh Rewani

Command Palette

Search for a command to run...

Monolithic Architecture and Microservices Architecture

Monolithic Architecture

👉 Sab kuch ek single codebase/application me hota hai.

  • Ek hi project me frontend, backend logic, database handling, authentication, business logic, sab kuch tightly coupled hota hai.

  • Deployment bhi ek hi unit me hota hai (single server / single build file).

  • Example:

    • Ek travel website jisme flights, hotels, cars sab ek hi project ke andar likha hua hai.

    • Agar tumhe flights module me chhoti si change karni ho, toh pura app rebuild & redeploy karna padta hai.

Pros ✅

  • Simple to develop initially.

  • Easy debugging (ek hi jagah sab code hai).

  • Easy deployment (single unit).

Cons ❌

  • Large codebase = maintain karna tough.

  • Scaling difficult: agar sirf ek feature scale karna ho, pura app scale karna padta hai.

  • Failures impact whole system (ek bug → pura app down).

🔹 Microservices Architecture

👉 Application ko multiple independent small services me tod diya jata hai.

  • Har service apna khud ka codebase + database handle karti hai.

  • Services individually deploy & scale ho sakti hain.

  • Communication API (mostly REST/GraphQL/gRPC) ke through hota hai.

  • Example:

    • Travel website ko tod diya:

      • Flights service ✈️

      • Hotel service 🏨

      • Car rental service 🚗

      • Auth service 🔑

    • Agar hotels me load zyada hai → sirf hotels service ko scale kar do. Flights aur cars untouched rahenge.

Pros ✅

  • Scalability (independent services).

  • Faster development (different teams alag-alag service pe kaam kar sakte hain).

  • Fault isolation (hotel service crash hua toh flights service fir bhi chalti rahegi).

Cons ❌

  • Complex design (service communication, data consistency).

  • Requires DevOps setup (Docker, Kubernetes, etc).

  • Monitoring/debugging harder (distributed system hai).

🔑 One Line Difference

  • Monolithic → Sab kuch ek hi app me.

  • Microservices → Application broken into multiple small services jo independently chalti hain.