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Our experts follow a comprehensive 5-step process to break monolithic applications into microservices.
Step 1 : Source Code Modularization

It begins with identifying critical modules in an application. For e.g, if we are trying to break down an online travel booking app, these would be: 

  • Flight/car/sightseeing  booking 
  • Hotel booking 
  • Pick-up and drop booking 
  • Notification/Reminders 
  • 24/7 Online support, etc. 

And so on. The next step is to separate the codebase based on the modules that our team has just identified.

Step 2 : Identify loosely coupled modules

The team first dismantles modules with low coupling that do not alter the front end of the application. At this stage, ensuring data consistency is critical and can be achieved by getting the Data Access Layer (DAL)  written to both the legacy database as well as the newly created one. A communication model is established between the decoupled module and the rest of the application by implementing an asynchronous message exchange pattern.

Step 3 : Build APIs

To create a  successful microservice architecture,  APIs must be defined for communication between individual services for our team to take advantage of scaling capabilities offered by microservice architecture. The next important step is to create APIs. Numerous tools are available to help our team easily and efficiently build APIs.

Step 4 : Add an Anti-Corruption Layer

To make the architecture extensible and enable easy transitioning of monolith code to microservice architecture, our team adds an Anti-Corruption layer. It acts as an abstraction layer and ensures that the decoupled process is not constrained by the monolith application’s domain model. It  successfully isolates subsystems by translating communications and reducing coupling.

Step 5 : Build Outer Architecture

We now focus on the outer architecture i.e. is the platform or environment needed for our microservices to operate in. To ensure successful implementation of the microservice architecture, our team builds and maintains an outer architecture with critical components like: 

  1. API gateway- Single-entry point into the system with capabilities like composition, protocol translation 
  2. CI/CD- Automates the integration and deployment of the microservices 
  3. Containers- Integral for horizontally scaling the microservices

DevOps Toolchain and Practices Used

Incident Tracking and Management

Tools Used : Teamwork, Slack, Gitlab, Mantis

Source code management

Tools Used : Gitlab, Bitbucket

Continuous Integration and Delivery (CI/CD)

Tools Used : Jenkins, Gitlab CI

Code Quality

Tools Used : Code climate, Sonarqube

Code build

Tools Used : NPM, Yarn, Kaniko

Code test

Tools Used : Jest,Mocha, Selenium, Nightwatch and cucumber.js

Containerisation and Orchestration

Tools Used : Docker, Kubernetes

Configuration tools

Tools Used : Terraform and Ansible

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My experiences with the Toobler folks has been stellar. Their programming has been solid and their designs have been exceptional – a rare commodity in the outsourcing world. Without any hesitation – I will continue to use Toobler on all my projects.

Working with Toobler was easy for me. Their staff were always online when I needed to discuss something and they were professional and pleasant in their manner. They were also very knowledgeable and always had a good grasp on what was needed. This is a good company to have in your address book.

I believe that Toobler provided me the highest level of communication & coding during my product development. The world has greatly benefited from hands of their innovative team!

The guys at Toobler were very involved from the very first minute they started working on my project. Their commitment, knowledge and dedication helped me wrap it up in a spectacular fashion and needless to say, the result was a huge success.

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