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9 Fundamentals to a Successful MicroService Design

The human body is a combination of different systems most of which are independent yet, working together as one. Each system has a specific functionality of its own. All the organs with a multitude of other supporting frameworks form a fully functioning body. Now, if applied to software systems, this is the concept of a microservice architecture.

In technical terms, a microservice system allows development of single function modules. This trend of developing single function modules has increased agility, performance and cost efficiency for organizations both large and small while enabling continuous testing and early delivery. But, before we delve deeper into the fundamentals of microservice design let us have a look at its advantages.

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9 Fundamentals to a Successful MicroService Design

  1. 1. 9 Fundamentals To A Successful Microservice Design
  2. 2. With monolithic architectures, developers often faced challenges of limited reusability and scalability. But, with a microservice design, this single unit can be broken down into different modules making development, deployment, and maintenance easy. So let’s have a look at some major advantages of microservice architecture: Advantages Of Microservice Architecture
  3. 3. Technological Flexibility While monolithic architecture always left the developers looking for the ‘right tool for the job’, a microservice architecture offers coexistence of multiple technologies under one cover. Different decoupled services can be written in multiple programming languages. ONE
  4. 4. Increased Efficiency Microservice architecture speeds up the entire process of creation. Unlike a single unit, teams can work simultaneously on multiple components of a software system. This, in addition to increasing productivity, makes it easier to locate specific components and focus on them. Malfunctioning of a single component will not affect the entire system. Instead, this also eases error location and maintenance. TWO
  5. 5. Products Not Projects According to Martin Fowler, microservice architecture helps businesses create ‘products instead of projects’. In simpler terms, the use of microservice architecture allows teams to come together and create functionality for business rather than a simple code. The entire team comes together to contribute to different functionalities. THREE
  6. 6. Now we know the advantages of a microservice architecture, but, how do we achieve the perfection? Are we aware of the microservice design principles? What are the best practices to design a microservice architecture? Let us answer these questions and look at some fundamentals to a successful microservice design. Fundamentals to a successful microservice design
  7. 7. With the simultaneous implementation of development & deployment by different teams to establish or support a respectively unique functionality with a product, defining the scope of a microservice become s a very important task. While many people hold the concern of creating ‘too many’ tiny micro-services, it is usually more commonly seen that these microservices are overloaded. The Scope Of Functionality ONE
  8. 8. High Cohesion Combined With Loose Coupling The main motive of any microservice is to have services independent of each other. This means one can edit, update or deploy a new service without hampering any other services present. This is possible if interdependence is low. A loosely coupled system is the one where one service knows too less or nothing about others. TWO
  9. 9. Unique Source Of Identification Following the fundamentals of microservice design, it is important for any service to be the unique source of identification for the rest of the system. For example After an order is placed on an e-commerce website, the user is provided with an order ID. This order ID once generated contains all the information regarding the order. As a microservice, the order ID is the only source for any information regarding the order service. THREE
  10. 10. API Integration Breaking down the monolithic design into multiple services means these service will coordinate and work together to form the system. But, how do these services communicate? Well, the simple answer would be the use of an API (Application Programming Interface). The fundamental of microservice design is using the correct API. This is crucial to maintaining communication between the service and the client calls. FOUR
  11. 11. Data Storage Segregation Any data stored for a specific service should be made private to that specific service. This means any access to the data should be owned by the service. This data can be shared with any other service only through an API. This is very important to maintain limited access to data and avoid ‘service coupling’. FIVE
  12. 12. Traffic Management Once the APIs have been set and the system is up and running, traffic to different services will vary. The traffic is the calls sent to specific services by the client. In the real world scenario, a service may run slowly, thus, causing calls to take more time. Or a service may be flooded with calls. In both the cases, the performance will be affected even causing a software or hardware crash. SIX
  13. 13. Automating The Process Microservices designed independently should be able to function in its own accord. The automation would enable self-deployment and function without the need for any intervention. This process enables the services to be cloud- native in nature and the ability to be deployed in any environment. SEVEN
  14. 14. Minimal Database Tables Accessing database tables to fetch data can be a lengthy process. It can take up time and energy. While designing a microservice, the main motive should revolve around the business function rather than the database and its working. EIGHT
  15. 15. Constant Monitoring Imagine breaking down a monolithic architecture into a microservice design. This needs a lot of time and resources. It is not easy to monitor all the changes made with the help of the traditional tools. The insertion of data layers and caching increases performance but makes it difficult to monitor the entire process. NINE
  16. 16. HAPPY TESTING!! www.lambdatest.com

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  • tnakaji

    Nov. 12, 2018

The human body is a combination of different systems most of which are independent yet, working together as one. Each system has a specific functionality of its own. All the organs with a multitude of other supporting frameworks form a fully functioning body. Now, if applied to software systems, this is the concept of a microservice architecture. In technical terms, a microservice system allows development of single function modules. This trend of developing single function modules has increased agility, performance and cost efficiency for organizations both large and small while enabling continuous testing and early delivery. But, before we delve deeper into the fundamentals of microservice design let us have a look at its advantages.

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