https://github.com/mdecker-mobilecomputing/maven_springboot_linkshortener

Link shortener with Java and Kafka; demo for microservice architecture
https://github.com/mdecker-mobilecomputing/maven_springboot_linkshortener

demo docker github-actions h2-database java kafka maven microservices spring-boot

Last synced: 7 days ago
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Link shortener with Java and Kafka; demo for microservice architecture

• Host: GitHub
• URL: https://github.com/mdecker-mobilecomputing/maven_springboot_linkshortener
• Owner: MDecker-MobileComputing
• License: bsd-3-clause
• Created: 2023-12-23T20:06:13.000Z (11 months ago)
• Default Branch: master
• Last Pushed: 2024-04-12T12:47:06.000Z (7 months ago)
• Last Synced: 2024-04-13T20:01:47.938Z (7 months ago)
• Topics: demo, docker, github-actions, h2-database, java, kafka, maven, microservices, spring-boot
• Language: Java
• Homepage:
• Size: 261 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

        
# URL Shortener with Microservices #




This repository contains the source code for a [URL Shortener Service](https://en.wikipedia.org/wiki/URL_shortening)

implemented by several Java microservices (Maven and Spring Boot) with an embedded [H2 database](https://www.h2database.com).




A similar application with Nodejs (but still Microservices and Kafka) can be found [here](https://github.com/MDecker-MobileComputing/Nodejs_Express_LinkShortenerMitKafka).




----

## Overview ##




Before starting the microservices the Kafka server must be started using the `docker-compose.yml`

in [this folder](./Kafka/).

This file will also start a container with a simple load balancer for the two instances

of microservice 2 (resolver).




**[Microservice 1 (Short Link Definition)](Microservice1_Definition/):**

* [The only Instance: `localhost:8080`](http://localhost:8080)

* DAO: `JdbcTemplate`




**[Microservice 2: (Link Resolver)](Microservice2_Resolver/):**

* Instances:

    * [Instance 1: `localhost:8000`](http://localhost:8000)

    * [Instance 2: `localhost:8010`](http://localhost:8010)

    * [Load Balancer (nginx): `localhost:8123`](http://localhost:8123)

* DAO: `JdbcTemplate` and `NamedParameterJdbcTemplate`




**[Microservice 3: (Usage Statistics)](Microservice3_LinkStatistics/):**

* [The only Instance: `localhost:8050`](http://localhost:8050)

* DAO: `EntityManager` of *Jakarta Persistence API (JPA)*




DAO: **D**atabase **A**ccess **O**bject




----

## License ##




See the [LICENSE file](LICENSE.md) for license rights and limitations (BSD 3-Clause License).