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prerequisites
basic IDE knowledge • basic Spring and Spring Boot • intermediate Maven • basic Docker and Docker Compose • basic Java or Kotlin • REST principles • basic microservices
skills learned
format the source code • reduce the conflicts with dependencies • reduce the use of resources of the microservices
Andres Sacco
1 week · 8-10 hours per week · BEGINNER
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Look inside

You’re a senior developer at Travel World Agency (TWA), which has grown to become the largest travel agency in the world. The company has built a next-generation system that uses a microservice architecture running on Amazon Web Services (AWS). But while TWA’s success is rocketing higher, the performance of its reservations microservice is crashing and burning. As a solution, the company has replaced the microservice with a new one, using Kotlin and Spring Boot to improve performance and maintainability. Your job is to improve the performance of the new API.

With the help of the Maven Enforcer plugin, you’ll deal with dependencies that slow the microservice. You’ll use ktlint to format the source code according to a single standard, thereby increasing efficiency. You’ll create a Docker image using GraalVM and optimize it to decrease resource consumption. When you’re finished, your API will start up quicker and be more reactive, even on high-traffic days like Black Friday and Cyber Monday!

This project is designed for learning purposes and is not a complete, production-ready application or solution.

project author

Andres Sacco

Andres Sacco is a technical leader at Prisma. He has experience with many programming languages including Java, PHP, and Node.js. At his previous job, Andres helped find alternative ways to optimize data transfers between microservices, which reduced the cost of infrastructure by fifty-five percent. A co-author of Beginning Scala 3, published by Apress, Andres has also dictated internal courses about new technologies and shared his expertise in articles on Medium.

prerequisites

This liveProject is for Java and Kotlin developers who are interested in improving the performance of their APIs by reducing dependencies and resource consumption. To begin these liveProjects you’ll need to be familiar with the following:

TOOLS
  • Any IDE: IntelliJ IDEA, Eclipse
  • Basic Spring and Spring Boot
  • Intermediate Maven
  • Basic Docker and Docker Compose
TECHNIQUES
  • Basic knowledge of Java or Kotlin
  • Basic knowledge of Spring Boot and how to add new modules
  • Basic Docker and Docker Compose commands
  • REST principles
  • Basic knowledge of microservices

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