CODEWITHSUNDEEP
javaspring-bootgraphqlgraphql-java
imsilversurfer
imsilversurfer

Reputation: 13

GraphQL Field Naming Issue

I'm trying to implement a GraphQL server in my Spring Boot application. I'm encountering a problem where the field names in my GraphQL schema do not match the field names in my Java entities. Here are the details:

schema.graphqls

type Book {
    book_id: ID!
    title: String!
}

Java Entity


@Table(name = "book")
public class Book {
    @Id
    @Column(name="book_id")
    private BigDecimal bookID;
    private String title;
    ....
    // Getters and setters
}

When querying book_id in GraphQL, I get the following error because it doesn’t seem to map to bookID in the Java entity. I tried renaming the field in my entity to book_id, but that’s not a feasible long-term solution.

> The field at path '/getAllBooks[0]/book_id' was declared as a non null
> type, but the code involved in retrieving data has wrongly returned a
> null value.  The graphql specification requires that the parent field
> be set to null, or if that is non nullable that it bubble up null to
> its parent and so on. The non-nullable type is 'ID' within parent type
> 'Book

I cant use GraphQLField from graphql-java-tools as its not available in local nexus.

Is there any way to handle naming discrepancy ?

Upvotes: 0

Views: 42

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