springboot-api-rest-example VS blog-tutorials

This is my filtered list of open-source projects that I use for learning: https://github.com/codurance/academy-walking-skeleton/blob/main/simpleWebservice/src/main/java/com/kata/SimpleWebservice/UserRepository.java https://github.com/bwajtr/java-persistence-frameworks-comparison https://github.com/thombergs/code-examples/tree/master/spring-boot/spring-boot-testing https://github.com/codurance/all-aboard-backend https://github.com/codurance/gandalf https://github.com/codurance/hotel-kata-boot https://github.com/codurance/hotel-kata-monolith https://github.com/codurance/hotel-kata-raw https://github.com/codurance/mementor https://github.com/codurance/pouch https://github.com/codurance/Retropolis-BE https://github.com/codurance/SalarySlipKata https://github.com/codurance/sessionize https://github.com/codurance/task-list https://github.com/ddd-by-examples/factory https://github.com/doctore/Spring5Microservices https://github.com/eventuate-examples/eventuate-examples-java-customers-and-orders https://github.com/gitpushforcemain/nerdy-jokes-app https://github.com/gothinkster/spring-boot-realworld-example-app https://github.com/gtiwari333/spring-boot-web-application-sample https://github.com/hamvocke/spring-testing https://github.com/hmcts/spring-boot-template https://github.com/IBM/template-java-spring https://github.com/isd-soft https://github.com/jitterted/mobreg https://github.com/jref/covid-19-demo https://github.com/jref/vaccination-start https://github.com/lpalma/merlin https://github.com/mechero/full-reactive-stack https://github.com/mohamed-taman/Springy-Store-Microservices https://github.com/nelkinda https://github.com/OlgaMaciaszek/spring-cloud-netflix-demo https://github.com/pavelfomin/spring-boot-rest-example https://github.com/PravSonawane/fakes-over-mocks https://github.com/remal/java-tools https://github.com/remal/oss-template-java-gradle https://github.com/pavelfomin/resume/blob/master/resume.html.pdf https://github.com/richardjwild/how-to-java https://github.com/rieckpil/java-testing-ecosystem https://github.com/rieckpil/testing-spring-boot-applications-masterclass https://spring.io/guides https://www.javaguides.net/2022/03/spring-boot-unit-testing-service-layer.html?spref=tw https://github.com/spring-petclinic https://github.com/stratospheric-dev/stratospheric https://github.com/tericcabrel/spring-user-management https://github.com/thombergs/buckpal https://github.com/Throyer/springboot-api-rest-example https://github.com/TomSpencerLondon/Quiz https://github.com/vladmihalcea/high-performance-java-persistence https://github.com/Vukan-Markovic/Distributed-information-systems https://github.com/yacekmm/testingDemo https://github.com/kamaruzzaman https://github.com/evrentan?tab=repositories https://github.com/ConstantinKV/demo-sca-provider https://github.com/sqshq/piggymetrics https://github.com/ESchouten/CleanArchitecture https://github.com/CodelyTV/java-ddd-example https://github.com/lsoares/clean-architecture-sample https://github.com/mattia-battiston/clean-architecture-example https://github.com/techyourchance https://github.com/ttulka/ddd-example-ecommerce-microservices https://github.com/ttulka/ddd-example-ecommerce https://github.com/victorrentea/clean-architecture https://github.com/victorrentea/clean-code-java https://github.com/victorrentea/ddd https://github.com/victorrentea/integration-testing-spring

We need to create the entities User, Address, and Reservation. For each entity, we will create the related Repository and Service. Since it is not the main topic of this tutorial, find the code of these files in the Github repository: