Spring data rest add element to collection [duplicate] - spring

Question

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How to maintain bi-directional relationships with Spring Data REST and JPA?
(4 answers)
Closed 6 years ago.
I'm trying to add an element to a #OneToMany relation following this tutorial on Spring Data Rest, I'm using the request below to add an account to a user accounts collection.
curl -v -X PUT -H "Content-Type: text/uri-list" -d "http://localhost:8080/account/1" http://localhost:8080/user/1/accounts
The request respond with a 204 and nothing changes when I check the user accounts list. Debugging the app I can see that the entity is being saved, so maybe a transaction commit is not happening. I also noticed that if I change the relation to a #OneToOne, the request works as expected.
User class
#Entity
#Getter
#Setter
#Builder
#NoArgsConstructor
#AllArgsConstructor
#ToString(exclude = "accounts")
#EqualsAndHashCode(of = "id", callSuper = false)
#SequenceGenerator(name = "user_sq", sequenceName = "user_sq")
public final class User extends BaseEntity {
#Id
#GeneratedValue(strategy = GenerationType.AUTO, generator = "user_sq")
private Long id;
//other properties
#OneToMany(cascade = CascadeType.ALL, mappedBy = "owner", orphanRemoval = true)
private List<Account> accounts;
// #OneToOne(cascade = CascadeType.ALL)
// private Account accounts;
}
Account class
#Entity
#Getter
#Setter
#Builder
#NoArgsConstructor
#AllArgsConstructor
#EqualsAndHashCode(of = "id", callSuper = false)
#SequenceGenerator(name = "account_sq", sequenceName = "account_sq")
public final class Account extends BaseEntity {
#Id
#GeneratedValue(strategy = GenerationType.AUTO, generator = "account_sq")
private Long id;
//other properties
#ManyToOne
private User owner;
}
Repositories
#RepositoryRestResource(collectionResourceRel = "accounts", path = "account")
public interface AccountRepository extends PagingAndSortingRepository<Account, Long> {}
#RepositoryRestResource(collectionResourceRel = "users", path = "user")
public interface UserRepository extends PagingAndSortingRepository<User, Long> {}

Answer 1

Try to use something like this body in your POSt or PUT/PATCH requests:
{
// user properties...
"accounts": [
"http://localhost:8080/accounts/1",
"http://localhost:8080/accounts/2"
]
}
To create new User (with his accounts) use POST request to http://localhost:8080/users
To update current User (and his accounts) use PUT/PATCH request to http://localhost:8080/users/1 (1 - is the ID of current user)