A Guide to Building a Micronaut Application With Micronaut Data Support

A Guide to Building a Micronaut Application With Micronaut Data Support

In this post we are exploring a JVM based full stack microservice framework- Micronaut — that enables us to create microservices and server-less functions fairly quickly.

In this post we are exploring a JVM based full stack microservice framework- Micronaut — that enables us to create microservices and server-less functions fairly quickly.

The power of Micronaut is in it’s fast start-up time and low memory foot print and the fact that it supports most of the JVM based languages such as Java, Kotlin and Groovy. Micronaut has built in support for cloud based server-less functions such as AWS Lambda

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Micronaut framework from Grails

Surprisingly the framework has a lot of similarity to the Springboot framework and this helps in a very fast learning curve for those who are well-versed with Springboot framework . Though the syntax and annotations looks similar , the startup time is far better than spring-boot and some analysis shows that it is nearly 1.5 times faster that spring-boot .

The primary objective of this article is to help creating an end-to-end micronaut application with JPA /hibernate support connecting to a database. And for this we will be using Micronaut Data which is similar to Spring Data in the Spring-boot world .

Micronaut Data uses a technique known as Ahead of Time (AoT ) compilation to precompute the queries used by the repository interfaces at the compile time thus reducing the overhead at the runtime making faster responses from the application .

So let’s get into the action !

Step -1 : We need a SQL Database !!!

For this part we are going to use a readymade PostgreSQL database that can be run a docker container. To see how this is done please visit my earlier article on the same

micronaut microservices hibernate jpa java

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