ryonday / datarest-1253

Demonstration project for Spring issue DATAREST-1253 (https://jira.spring.io/browse/DATAREST-1253)

Spring-Data-REST PUT is Broken with DynamoDB

This project uses the neat Spring-Data-DynamoDB project.

Note that PUT operations work well with Spring Boot 1.5.x (Spring-Data-REST 2).

I've traced through both versions side-by-side, and for whatever reason, Spring Data REST tries to convert the primary key using a hard-coded ConversionService (this is at PersistentEntityResourceHandlerMethodArgumentResolver:68).

The version of Spring-Data-REST used in Spring Boot 1.5.x instead used a pathway that used the fully-fledged converter subject to the Spring Data REST configuration (please see RestConfig in this project for where I register this converter).

How-to-run

I am using the embedded DynamoDB for this project. It requires SQLite libraries to be available in a known spot. The Gradle test task will copy these to the build output directory from the test dependencies configuration. This means that even when running these tests from, say, IntelliJ, you'll need to manually execute the test task first, before the application will come up.

I have a test (SdrPutIsBrokeApplicationTests::put_is_broken) that illustrates this problem.