.net core : incomplete JSON response

Question

I\'m trying to build simple API for training, in my database I got users (firstname, lastname, email password, list) and sports ( name, userID). A

Answer 1

I had this problem to in one of my projects. This is caused by a self referencing loop.

You need to create some sort of DTO (Data Transfer Object) which will be used to generate your JSON.

In your DTO you remove the inverse relationship so you end up having something like

    public class SportDto
    {
        public string Name { get; set; }
    }

    public class UserDto
    {
        public String FirstName { get; set; }
        public String LastName { get; set; }
        public String Email { get; set; }
        public String Password { get; set; }

        public List Sports { get; set; }
    }

You then map your user User and Sport models to your UserDto and SportDto A good tool for doing this mapping is AutoMapper. You can read the docs to see how to get started.

After the mapping is done, you Send the DTOs as your JSON and not your models.