Using Relationship REST APIs
Liferay 7.4 U70+/GA70+
When you add relationships to custom or system objects, Liferay generates REST endpoints for accessing those relationships. You can relate and disassociate entries, as well as return an entry’s related entries. These endpoints are added to the parent object in one-to-many relationships and to both objects in many-to-many relationships.
To proceed, set up a new Liferay 7.4 instance and prepare the provided tutorial code. Then, run the scripts to create object entries and manage their relationships with one another.
Setting Up a Liferay Instance
Start a new Liferay instance by running
docker run -it -m 8g -p 8080:8080 liferay/portal:7.4.3.132-ga132
Sign in to Liferay at http://localhost:8080. Use the email address test@liferay.com and the password test. When prompted, change the password to learn.
Next, create three related custom objects: