mariesto / microservices-demo-with-spring-boot

Demo - Miscroservices with Spring Boot

Create demo project to build microservices using spring boot multi-module. Develop 2 services (book-service and rating-service) which have in-memory database(H2) and communicate through HTTP (using RestTemplate).

service-registry act as service discovery by using Eureka Server which have default dashboard.

gateway-service act as API Gateway which route the request accordingly based on defined config.

book-service, rating-service and gateway-service will use Eureka Client and register itself to Eureka Server.

Technology

Name	Version	Description
Spring Boot	2.7.11	Framework to build microservices
Java	11	Language
Spring Cloud Gateway	2021.0.6	API Gateway
Eureka	1.10.17	Service Discovery
Netflix Hystrix	2.2.10.RELEASE	Fault Tolerance (fallback)
H2	2.1.214	In-memory Database
Docker	20.10.21	Containerization

How to Use

• Go to the parent module and edit the run.sh file by updating MODULES_DIR variable according to your local path after you clone this repo.
• Then, make sure this script executable with chmod +x run.sh
• Run script ./run.sh to trigger the docker-compose
• Go to http://localhost:8761/eureka to verify all the services already registered to service discovery
• Run below curl to tes the application

curl --location --request POST 'http://localhost:8881/api/v1/books/ISBN-123/5'

• Go to H2 console of rating-service to verify the result

Other options, you can use the docker directly by pulling the images from below registry : https://hub.docker.com/repositories/mariesto

Note The docker image will be same with the module name in this repo.