Working with Relationships in Spring Data REST

Libraries and Addresses have a one-to-one relationship by using the @OneToOne annotation.

Creating the Resources

First, add a library by typing - “Content-Type:application/json”
then the API will return the JSON object.
The result of the POST request is a JSON object containing the Address record

Creating the Associations

After persisting both instances, we can establish the relationship by using one of the association resources.

This is done using the HTTP method PUT, which supports a media type of text/uri-list, and a body containing the URI of the resource to bind to the association.

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