Complete Guide to Microservices Design Patterns

You will learn about patterns in microservice architecture and apply them to your applications.

Now that you understand the concepts and structure of a basic microservices architecture, you can design and build a microservices application using the MSA patterns and service decisions required to build the application.

This is an essential course for all developers and architects who want to transform complex systems into flexible, scalable, and maintainable microservices architectures. Strengthen your core application development skills with this course!

• Understand Monolithic and Microservice Architectures, understand the differences between large-scale monolithic architectures and microservices , and learn the pros and cons of each approach.

• This article explains the steps required to transform a basic monolithic application into a microservices architecture, as well as the important points to consider.

• MSA Design Principles: Covers the design principles of microservice architecture (MSA) to improve scalability and reliability. You will learn about core concepts such as domain separation, loose coupling, and independent deployment.

• Through this lecture, you will understand the microservice architecture pattern suitable for the service type and the concepts required to apply the MSA pattern.

• Learn MSA Core Patterns: You can study key MSA design patterns such as API Gateway , Service Discovery , and Saga patterns with real-world examples.

  
  

• You can implement a virtual MSA example and practice the entire process required to get it running.

• Here's a graph of the usage by major patterns in MSA:

  
  

  

  
  

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After class

• You will understand the configuration, architecture, and patterns required to transform a monolithic application into an MSA application .

• You will understand how to synchronize data required for MSA and how to process data in distributed transactions .

• You will understand the architectures and patterns to consider when developing microservice applications, and how to apply various patterns.

• Problem-solving skills can be improved by applying various design patterns of MSA to the appropriate situation.

• When introducing MSA to existing projects or services, you will be able to draw a clear roadmap and design the deployment environment based on an understanding of DevOps culture and cloud infrastructure .

Features of this course

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The MSA patterns covered in the lecture are:

• API Gateway: A pattern that receives all client requests from a single entry point and handles authentication, logging, routing , etc. You can manage multiple microservices in one place.

• Service Discovery: A pattern of registering and finding the locations of dynamically changing service instances in a central registry . This allows for automatic address discovery when communicating between services.

• Synchronous & Asynchronous communication : Synchronous communication is a method in which the service that sent the request waits for a response, and the thread is blocked until the response comes. Synchronous communication can be implemented in the REST / gRPC / GraphQL API manner. Asynchronous communication is a method in which the service that sent the request proceeds with the next task immediately without waiting for a response, and communicates by publishing and subscribing to events through a message broker such as Kafka.

• Circuit Breaker: A pattern that short-circuits calls to prevent a chain reaction of failures in a single service. When an external service is unavailable , calls are stopped for a certain period of time and fail-fast is achieved.

• Fallback handling: This pattern provides alternative responses or retry logic as a fallback when circuit breakers, etc. are triggered. It increases the resilience of the system in the event of a partial failure.

• Saga Pattern: A distributed transaction pattern for maintaining data consistency across distributed services. It links local transactions of each service with events/messages to ensure eventual consistency.

• CQRS & Event Sourcing: CQRS (Command Query Responsibility Segregation) is a pattern that increases scalability by separating read and write models, and Event Sourcing is a pattern that stores state changes as event logs and restores the state based on history . They are used together to manage data for complex businesses.

• EDA: Event Driven Architecture is a software architecture pattern that designs systems around the creation, detection, consumption, and use of events. It is the way in which components of microservice applications communicate and interact with each other through 'events'.

• BFF (Backend for Frontend): A pattern that provides a specialized backend for each platform, such as web and mobile. It increases efficiency and development productivity by creating a dedicated API layer that meets the needs of each frontend.

Who created this course

• Based on my 25 years of experience in IT, teaching, consulting, and development, I teach with explanations to help you understand my practical experience and know-how.

• Based on a basic understanding and introduction to MSA, we cover understanding and application of microservice patterns that can upgrade your understanding of MSA to the next level.

• This course explains MSA implementation and patterns, which are a continuation of the lectures "Developing RESTful Web Services using Spring Boot", "Developing Microservice Applications (MSA) with Spring Cloud", "Building a CI/CD Pipeline using Jenkins", and "Docker Virtualization Technology for DevOps (Private Harbor Registry)".

• With the idea that "Knowledge in the head is not knowledge," I try to package my small experiences and knowledge well and explain them in a more understandable way. I think it will be a lecture that is easier to understand for those who are interested in Java and Spring Framework and extend to Cloud Native and Microservice Architecture.

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Things to note before taking the class