8 Core Components of Microservice Architecture

8 Core Components of Microservice Architecture

Written By:
Suresh Babu

With 20+ years of experience in designing and implementing application by following various design patterns, specialized in cloud computing on Microsoft technologies, Suresh is highly skilled in implementing DevOps process. He is excellent in developing application using azure service (App, Cloud, Cognitive) and deployed in cloud environment.

Microservices – also known as the microservice architecture – is an architectural style that structures an application as a collection of services that are. Highly maintainable and testable. Loosely coupled. Independently deployable. Organized around business capabilities.

AMR (Allied Market Research) says the global microservices architecture market size was valued at $2,073 million in 2018, and is projected to reach $8,073 million by 2026, registering a CAGR of 18.6% from 2019 to 2026.

Microservice architecture is increasingly adopted by organization as an inbuilt mechanism for developing enterprise application. Cloud based solution such as software as a service (SaaS) and platform as a service (PaaS) is driving the market. The advantage of microservices architecture includes improvement in fault isolation system, provide easy platform for new developer and helps to eradicate long term commitment on single technology.

Why do we need microservices in architecture?

Microservice architecture allows you to maximize deployment velocity and application reliability by helping you move at the speed of the market. Since applications each run in their own containerized environment, applications can be moved anywhere without altering the environment

Microservice architecture Development

Here are 8 core components are Microsoft Architecture:

  1. Clients
  2. Identity Providers
  3. API Gateway
  4. Messaging Formats
  5. Databases
  6. Static Content
  7. Management
  8. Service Discovery


The client apps usually need to consume functionality from more than one microservice. The client needs to handle multiple calls to microservice endpoints if that consumption is performed directly. Client apps need to be updated frequently, making the solution harder to evolve.

Identity Providers:

The services are fine-grained and lightweight. The Identity Microservice must allow both user-driven and server-to-server access to identity data. Microservices allow applications to be created using a collection of loosely coupled services.

According to Market Research Future, the microservices architecture market is expected to grow at approx. USD 33 Billion by 2023, at 17% of CAGR between 2017 and 2023

API Gateway:

The API Gateway is responsible for request routing, composition, and protocol translation. It provides each of the application’s clients with a custom API. For most microservices‑based applications, implementation of an API Gateway is very important for a single-entry point into a system.

Microservices Architecture Market

Microservices Architecture Market

Messaging Formats:

Synchronize and Asynchronized are the 2 types of messages through which they communicate. Every microservice in order to communicate either synchronously or asynchronously with other microservices. “Synchronous – HTTP is a synchronous protocol. The client sends a request and waits for a response from the service. The client code or message sender usually does not wait for a response.


Microservice owns a private database to capture their data and implement the respective business functionality. Microservices databases are updated through their service API. The services provided by Microservices are carried forward to any remote service which supports inter-process communication for different technology stacks.

Static Content:

After the microservices communicate within themselves, they deploy the static content to a cloud-based storage service that can deliver them directly to the clients via Content Delivery Networks (CDNs).

Cloud Microservices market


Management feature is a capability that allows operations and business users to configure services in run-time. For load balancers, the approaches to feature flags management in microservices architecture are a complex topic, especially when one business feature spans multiple microservices.

Service Discovery:

In a microservices application, the set of running service instances changes dynamically. Instances have dynamically assigned network locations. Consequently, for a client to make a request to service it must use a service‑discovery mechanism. A key part of service discovery is the service registry.

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