Microservice Architecture – Definition
Microservice architecture is a design approach in computer science that breaks down application systems into smaller, independent, and more manageable components called microservices. Each microservice is a self-contained module that implements a specific function or service, and interactions between them occur via programming interfaces (APIs). This architecture aims to increase flexibility, scalability, and facilitate the maintenance and development of IT systems.
Benefits of using microservices
- Flexibility and scalability
Microservices are easy to scale because they can be added or removed as needed. This allows applications to adapt to changing business needs.
- Increased efficiency
Microservices can improve application performance because each service can be optimized for a specific task.
- Increased reliability
Microservices can increase application reliability because the failure of one service does not cause the entire application to fail.
- Facilitating development and maintenance
Microservices make it easier to develop and maintain applications because each service is independent and can be developed and maintained by a separate team.
Microservice typologies
There are many different typologies of microservices, which categorize them based on various criteria. Here are some of the most popular typologies:
Types of microservices by scope
Macro-microservices : Microservices with a broad scope that are responsible for performing complex functions.
Micro-microservices : Narrow-scope microservices that are responsible for performing simple functions.
Types of microservices by technology
Native microservices : Microservices that are written in a programming language and use technologies that are designed for microservice architecture.
Non-native microservices : Microservices that are written in a programming language and use technologies that are not designed for a microservice architecture.
Types of microservices by interface
RESTful Microservices : Microservices that use the REST protocol to communicate with each other.
SOAP Microservices : Microservices that use the SOAP protocol to communicate with each other.
Types of microservices by management model
Managed microservices : Microservices that are managed by a central organizational unit.
Remote microservices : Microservices that are managed by independent organizational units.
Types of microservices by deployment model
Cloud-deployed microservices : Microservices that are deployed in cloud computing.
On-premises microservices : Microservices that are deployed on-premises within a company's infrastructure.
Types of microservices by development model
Microservices developed by a monolithic team : Microservices that are developed by a single team of developers.
Microservices developed by autonomous teams : Microservices that are developed by independent teams of developers.
Advantages and disadvantages of microservice architecture
| Defects | Advantages |
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Complicated deployment Deploying multiple microservices and coordinating them can be more complex than in a traditional monolithic architecture. |
Scalability Easily scale individual microservices independently, allowing for effective load management. |
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Management Complexity Managing multiple independent microservices requires appropriate tools and processes, which can be time-consuming. |
Independence Each microservice is independent, allowing you to develop, test, and deploy changes without affecting the rest of the system. |
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Communication costs Communication between microservices may generate additional costs associated with transferring data between services. |
Technological diversity Microservices allow you to use different technologies for different components, allowing you to tailor them to specific requirements. |
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Security Managing security and authorization in a microservices environment can be more demanding than in a monolith. |
Ease of implementing new features Thanks to the independence of microservices, the introduction of new features and updates can be more flexible. |
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Debugging Complexity Debugging and monitoring microservices can be more complex than a single monolithic application. |
Easier team scalability Microservices allow you to work on different components independently, which makes it easier to organize teams and accelerates development. |
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Transaction management Managing distributed transactions can be more difficult in a microservice architecture. |
Better fault tolerance The failure of one microservice does not affect the others, which increases the system's resilience to failures. |
Examples of applications that use microservices
Amazon Web Services (AWS)
AWS is a cloud platform that offers a wide range of services, including microservices. AWS is used by many large companies, such as Netflix, Spotify, and Airbnb.
Netflix
Netflix is a streaming service that uses microservices to handle tasks such as movie recommendations, video streaming, and payment management.
Spotify
Spotify is a streaming service that uses microservices to handle tasks such as music search, music playback, and subscription management.
Airbnb
Airbnb is a short-term rental platform that uses microservices to handle tasks like listing search, reservations, and payments.
LinkedIn is a social network for professionals that uses microservices to handle tasks like profiling, finding contacts, and sending messages.
Does Shopify use microservices technologies?
Yes, Shopify Polska uses microservices technology. The Shopify platform is divided into over 100 microservices responsible for various functions, such as:
- Product and order management
- Payment processing
- Marketing
- Logistics
- Security
Shopify and Shopify Plus microservices are written in various programming languages, such as Java, Node.js, and Python, and are deployed on the AWS cloud.
