What Are Micro Services?? How And When To Use Them

In a monolithic structure, the entire application is likely to fail if a single part of the code is broken. With the microservice architecture, the use of individualized and compartmentalized application components means that when one service fails, the rest of the services in the application are still operational. As a result, failure or deactivation of a single service does not cause the entire application to fail. Over time, the benefits of microservices have become more important to software developers as the community is moving towards new ways of developing, including continuous delivery and DevOps. The main advantages of microservice architectures include improved scalability, availability, modularity and application maintainability.

Disconnecting services and authorizing independent development required the use of APIs, the set of syntax rules that services use to communicate with each other. The architecture introduces additional complexity and new issues to deal with, such as network latency, message format design, backup / availability / consistency, load balancing and fault tolerance. The complexity of a monolithic application does not disappear when it is re-implemented as a set of microservice applications. Other places where complexity manifests are increased network traffic and the result of slower performance. In addition, an application consisting of any number of microservices has a greater number of interface points to access the respective ecosystem, increasing architectural complexity. Different organizing principles (such as HAATOAS, interface and documentation of the data model established via Swagger, etc.) have been applied to reduce the impact of this additional complexity.

Micro services are an important innovation in the development and implementation of applications. The microservice application architecture represents a new approach to software development where developers build the application as a set of components or modular services, each with a specific task or commercial objective. Each of these modular components is known as microservice and microservices can communicate with each other through application programming interfaces . A microservice architecture depends on a range of options for service discovery, messages, network routing, error detection, registration, storage, identity and more. Teams cannot build and run microservices with the same approach and tools that produce monolithic software. When defining the microservice architecture, development teams must determine how many microservices are required to deliver an application and how large or complicated each microservice must be.

Monolithic architecture, on the other hand, has a broad focus based on planned delivery with design and technology patterns, putting the process first. Many development teams have discovered that the architectural style of microservices is a superior approach to monolithic architecture. To make a wise decision, you need to understand and apply them to your specific context.

Because teams work a little on silos, there is more responsibility for data security because developers handle specific services. Since data security becomes a major problem in software development, microservices developers can provide a reliable security solution. To mitigate this, large teams of engineers have to work in parallel, because even the smallest code change can somehow affect other contributors. In addition, testing requires a completely new compilation of the software, with technical groups working on different components to be fully synchronized.

Microservices are generally easier to build, deploy and scale due to their smaller size and distributed nature. They are not new, because the concept has roots in older design patterns, such as service-oriented architectures, modularity and separation of concerns. They represent a new way to design large-scale systems that would otherwise be more difficult to manage in traditional monolithic architecture.

Microservice applications allow the individual components of the application to be scaled if necessary without scaling all components together . By scaling a monolithic application, developers have no choice but to implement multiple instances of the entire application, regardless of which parts of the application generate excessive demand. Developers using the microservice architecture can scale demand for individual services as needed, significantly reducing the overall cost of resources associated with a larger user vessel. At a very high level, microservices can be conceptualized as a new way to create business applications, dividing applications into smaller, more independent services that don’t rely on a specific encoding language. In other words, development teams can use the language tools that make them feel most comfortable and still achieve synergy in the application development process.

Microservices represent a design pattern in which each service is only a small part of a larger general system. Each microsystem performs a specific and limited scope task that contributes to the end result. Since each microservice must provide output data to the following, a microservice architecture often uses a lightweight messaging system for that data transfer. Applications built as a set of modular components are easier to understand, easier to test and, above all, easier to maintain throughout the life of the application.

A micro-service based application is a collection of separate coupling services that are lightweight and independently deployable and scalable. Because each individual microservice is modular and monolithic vs microservices performs its own processes, it can be changed without affecting the entire application. Service-oriented architecture represents an effective strategy for fast and agile development cycles.

Each application is built as a set of services and each service is run on its own processes and communicated through the API. The evolution that led to the cloud microservice architecture started more than 20 years ago. The concept of service structure is older than containers and dates from the era of modern web applications. A microservice architecture is a way to develop applications that have become a best practice over time. Micro services have many benefits for Agile and DevOps equipment, such as Martin Fowler, Netflix, eBay, Amazon, Twitter, PayPal and other technology stars from monolithic architecture to micro-services.

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