உள்கட்டமைப்பு

Microservices

உள்கட்டமைப்பு

3 நிமிட வாசிப்பு

Microservices என்றால் என்ன?

Microservices is a software architecture pattern where applications are built as a collection of small, independently deployable services, each responsible for a specific business capability. Services communicate via APIs and can be developed, deployed, and scaled independently.

What are Microservices?

Microservices (or microservices architecture) is an approach to building software where a large application is decomposed into small, loosely coupled services that each handle a specific business function. Each service runs in its own process, manages its own data, and communicates with other services through well-defined APIs — typically REST or message queues.

Microservices vs. Monolith

In a monolithic architecture, the entire application is a single deployable unit. In microservices:

Aspect	Monolith	Microservices
Deployment	Entire app deploys as one unit	Each service deploys independently
Scaling	Scale the entire application	Scale individual services based on demand
Technology	One tech stack for everything	Each service can use different languages/frameworks
Team structure	One large team or tightly coupled teams	Small teams own individual services
Failure impact	One bug can crash everything	Failure is isolated to one service
Complexity	Simpler to start, harder to maintain at scale	More complex infrastructure, easier to evolve

Key Microservices Principles

Single responsibility: Each service does one thing well — user management, payment processing, notification delivery, etc.

Loose coupling: Services interact only through APIs. Changing one service's internals does not require changes in others.

Independent deployment: Each service has its own CI/CD pipeline and can be updated without redeploying the entire system.

Data isolation: Each service owns its data store. No shared databases between services.

Resilience: Services implement circuit breakers, retries, and fallbacks to handle failures in dependent services gracefully.

Microservices Communication Patterns

Synchronous (REST/gRPC): Service A calls Service B and waits for a response. Simple but creates coupling and cascading failure risk.

Asynchronous (message queues): Service A publishes an event to a queue (Kafka, RabbitMQ, SQS). Service B consumes it when ready. Decoupled but adds complexity.

Event-driven: Services emit domain events that other services react to. Enables loose coupling and eventual consistency.

When to Use Microservices

Microservices are appropriate for:

Large, complex applications with multiple teams

Systems requiring independent scaling of different components

Organizations that deploy frequently and need deployment isolation

Applications where different components benefit from different technology choices

When to Avoid Microservices

Microservices add significant operational complexity. For small teams, simple applications, or early-stage startups, a well-structured monolith is almost always the better choice. The overhead of managing distributed systems, inter-service communication, and data consistency is not justified until the team and application reach sufficient scale.

இது ஏன் முக்கியம்

Microservices architecture dominates how modern SaaS applications are built and operated. Understanding microservices helps teams design integrations that are resilient to individual service failures, communicate effectively with APIs, and appreciate why the services they integrate with behave the way they do.

Autonoly இதை எவ்வாறு தீர்க்கிறது

Autonoly's HTTP and API nodes let you orchestrate workflows across microservices — calling multiple service endpoints, transforming data between them, and handling failures with built-in retry logic. When microservices lack external APIs, Autonoly's browser automation can interact with their web interfaces directly.

மேலும் அறிக

எடுத்துக்காட்டுகள்

An e-commerce platform decomposed into separate services for catalog, cart, checkout, payments, and shipping — each independently scalable
An Autonoly workflow that coordinates across three microservices — fetching user data from the identity service, order history from the commerce service, and support tickets from the helpdesk service
A team migrating from a monolithic application to microservices, using API gateway and service mesh patterns for inter-service communication

அடிக்கடி கேட்கப்படும் கேள்விகள்

What is the difference between microservices and a monolith?

A monolith is a single, unified application where all functionality shares one codebase, database, and deployment. Microservices decompose the application into independent services, each with its own codebase, data store, and deployment pipeline. Monoliths are simpler to start; microservices offer more flexibility at scale.

Are microservices always better than monoliths?

No. Microservices introduce significant operational complexity — service discovery, distributed tracing, data consistency challenges, and more infrastructure to manage. For small teams and simple applications, a monolith is almost always the better choice. Microservices shine when you need independent scaling, deployment isolation, and team autonomy at scale.

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