I am using AWS Amplify with Flutter and I have a schema as such:

type User @model @searchable {
  id: ID! @primaryKey
  email: AWSEmail!

  roomProfileId: ID
  roomProfile: RoomProfile @hasOne(fields: ["roomProfileId"])
}

type RoomProfile @model @searchable {
  id: ID! @primaryKey
  roomType: String
  rentPrice: Int

  userId: ID!
  user: User! @belongsTo(fields: ["userId"])
}

I then make a query like this:

      const getProfiles =
          ''' query getProfiles($gender: String, $isActive: Boolean, $createdAfter: String, $limit: Int) {
          searchRoomProfiles(filter: {gender: {eq: $gender}, isActive: {eq: $isActive}, createdAt: {gt: $createdAfter}}, limit: $limit, sort: {field: createdAt, direction: asc}) {
            items {
              id
              roomType
              user {
                id
              }
            }
          }
        }
        ''';

      final getRoomProfilesRequest = GraphQLRequest(
        document: getProfiles,
        variables: <String, dynamic>{
          'gender': user.gender.name,
          'isActive': 'true',
          'createdAfter': user.nextRoomDate,
          'limit': pendingRoomProfiles.toString(),
        },
        decodePath: "searchRoomProfiles",
      );

      final response =
          await Amplify.API.query(request: getRoomProfilesRequest).response;

      String? dataString = response.data;
      print("esponse.data);

The issue is that the id and roomType are fetched successfully and I see them printed, but user is null.

I tried going to the AWS AppSync console and making the same query (i.e. copy pasting the query), and it returned the user successfully. Any idea why it isn’t working on my client?