Microservices REST APIs Using Spring Data REST
Code used in Kesha William's Building Microservices REST APIs Using Spring Data REST Pluralsight course.
The original code can be found at her Gitlab repository.
Changes from the original code
A pom.xml file was added in each of the microservices so that Intellij will detect them as separate modules.
The project structure for each microservice is as follows (when applicable):
| Folder type | Path |
|---|---|
| Source Folders | src\main\java |
| Test Source Folders | src\test\main\java |
| Resources Folders | src\main\resources |
| Excluded Folders | target |
Information
The application is split into three microservices: TicketManagement, ApplicationCatalog, and UserManagement.
Each microservice is ran on a different port and has its own H2 In Memory database.
We initialise the contents of the H2 database from onApplicationEvent(ContextRefreshedEvent) from each microservice.
On either initializing or refreshing the ApplicationContext, Spring raises the ContextRefreshedEvent. Typically a refresh can get triggered multiple times as long as the context has not been closed -Baeldung.
H2 credentials
| Field | Value |
|---|---|
| jdbc url | jdbc:h2:mem:testdb |
| Username | sa |
| Password | (empty) |
Usage
Start all three microservices. Their data can then be accessed via Postman.
-
TicketManagement
- Port: 8080
- H2 Console: http://localhost:8080/console
-
ApplicationCatalog
- Port: 8081
- H2 Console: http://localhost:8081/console
-
UserManagement
- Port: 8082
- H2 Console: http://localhost:8082/console