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Tag Archives: Microservices

Microservices for Java Developers: Microservices and fallacies of the distributed computing

1. Introduction The journey of implementing microservice architecture inherently implies building the complex distributed system. And fairly speaking, most of the real world software systems are far from being simple, but the distributed nature of the microservices amplifies the complexity a lot. In this part of the tutorial we are going to talk about some of the common traps that ...

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Spring Boot Microservices , Docker and Kubernetes workshop – part2

In the previous post we created our first micro service “ProductService” using SpringBoot and Docker. In this part we will go into details of how to manage multiple microservices using Spring Cloud, netflix libraries, API gateways . For our order management system, let’s say,  a minimal relationship could be something like this : So, let’s build 2 more services called “orderService” ...

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API Gateway & AWS Lambda for Authentication

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When Foreach initially stepped on the microservices wagon, we didn’t really build microservices. We thought we did, but there was always some logic present in all of our services. Of course, every service should really only focus on its own tasks and not on things that belong to another microservice. The most obvious thorn in our side was authentication and authorization logic. At a certain point, we had a couple of “micro”-services that verified the Authorization headers of ...

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Microservices for Java Developers: Implementing microservices (synchronous, asynchronous, reactive, non-blocking)

1. Introduction The previous parts of the tutorial were focused on more or less high-level topics regarding microservice architecture, like for example different frameworks, communication styles and interoperability in the polyglot world. Although it was quite useful, starting from this part we are slowly getting down to earth and direct our attention to the practical side of things, as developers ...

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When microservices becomes darkservices

Micro services is great and many company comes and talk about it on how it is used for scaling team, product etc Microservices has dark side also and as a programmer you should know about it before going on ride. In this post i will share some of the myths/dark side about micro services We needs lots of micro services ...

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Moving Host Cobol Batches and Monolith Webapps to Cloud and Microservices

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Very interesting presentation in Amazon Event “From Mainframe to Microservices – Vanguard’s Move to the Cloud”. Following parts can be used as Migration Patterns: Different ways of how to move from Mainframe to Microservices: Re-host Reengineer Refactor Rewrite Batch job migration Data analytics enablement Data-driven augmentation Re-platform with Linux and Java Repurchase Retire Combination of all This presentation also shows the Cloud Data ...

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Use Custom Packet Framing for Microservices Messaging

In my previous article, you looked at why forcing communication between microservices, using REST JSON endpoints, is not always the best approach. In this article, I will outline an example custom framing solution that you can extend for your own projects. Due to the complexity of creating useful framing, implementing the frame will be covered in my next article. Example ...

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Microservice Vs Monolith: Which one to Choose?

“Microservice” is a Buzzword in the industry right? Apart from Microservice, design rest of the design marked as “Monolith”. But as an architect, when you are trying to create a new Software based on a specific Domain what will you do? Adopt Microservice without judging anything as this is the hit one,  every one runs behind it or just stop ...

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