Microservices
Project Development

The microservices approach is a concept of developing solutions that are highly loaded or flexible in logic. Each microservice performs a small atomic task. Several (or all) micriservices are combined by BPM systems. Microservices can be written in different languages, scaled or refactored independently of one another.

Microservices Approach vs. Modular Approach

Extensive development

The more extensive a development is, the more you're faced with regression and custom functionality management. BPMS and the implementation of TDD help reduce time-to-value.

Transparent algorithms for business

Business analysts can create or modify algorithms with complex events (timers, exceptions, decision tables) independently, without developers support.

High-load project

Unlike a modular variant, a microservice solution can be scaled atomically starting with the actual microservices and all the way up.

Microservices Approach vs. Modular Approach

Modular systems with rich functionality complicate the scaling and change-making procedures. Sometimes it is extremely difficult to carry out comprehensive testing covering all the features.
The main advantages of microservices:
- easily scalable;
- the possibiltiy of 100% TDD;
- transparent for business analysts;
- simple refactoring.

Key Properties of Microservices

Microservices Have Clear Inputs and Outputs

Each microservice is considered as an independent element, and all the elements together form the overall process body. This makes microservices reusable and well-debugged.

Simplified Event Logs Reading

When using BPMS, the business can see how the code works on well-designed and comprehensible diagrams. Speaking about the logging, all log files have a unique format, and the cause-effect relationship analysis becomes as simple and comprehensive as possible for the entire business process.

Variations in the Use of Programming Languages

Each microservice is an independent piece of code. Sometimes you need to combine different stacks (for refactoring or acceleration), and this is not a problem in the microservice approach.

BPM System Integration

With the integration of BPM systems (such as Camunda or jBPM), microservices are easier to manage and control – business processes are executed according to the BPMN 2.0 standards. Algorithms become self-documenting and transparent for business.

The Opportunity of TDD Use

It can be difficult to use TDD in modular systems due to the strong functional connectivity. As a result, the vast majority of modules are without TDD. Microservices can provide resistance to regression even for a highly complex development.

Easy to Scale

At the cluster level, you can scale a particular microservice, instead of all the components, which is typical of modular systems.

Industry-Specific Solutions

Client

Amazon is an American company, the world's largest e-Commerce platform.

Solution

Microservice architecture makes it easy to scale

When Amazon was on a monolithic server, it was difficult to cope with heavy website traffic, especially during the sales peak period. As a result, Amazon was losing money, and most of its server capacity was wasted during the downtime. The transition to Amazon Web Services (AWS) allowed Amazon to scale capacity up or down as and when necessary, reduce both the number and duration of outages and save money. Thanks to the microservice architecture, Amazon has moved to a continuous deployment, and now Amazon engineers deploy code every 11.7 seconds.

Client

Netflix is an American entertainment company offering online streaming of films and television series.

Solution

Cloud microservices for uninterrupted broadcasting of billions of hours of content

When the Netflix website had a monolithic architecture, it experienced rapid growth rates and constant failures as servers couldn't cope with high loads. In 2009, in order to cope with the growing demand, Netflix started migrating from the monolithic architecture to cloud-based microservice architecture. This allowed Netflix engineers to deploy code thousands of times per day. Today, Netflix serves more than 200 million users worldwide, streaming more than ten billion hours of movies and TV shows without interruption.

Is It Too Early to Implement Microservices on Your Project?

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We can start with a modular architecture and move to microservices later, if necessary. Our portfolio includes Django, Magento, Akeneo, Pimcore, WSO2. Learn more!
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