How to store JSON in an entity field with EF Core?

Question

I am creating a reusable library using .NET Core (targeting .NETStandard 1.4) and I am using Entity Framework Core (and new to both). I have an entity class that looks like

Answer 1

For those using EF 2.1 there is a nice little NuGet package EfCoreJsonValueConverter that makes it pretty simple.

using Innofactor.EfCoreJsonValueConverter;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata.Builders;

public class Campaign
{
    [Key]
    public Guid Id { get; set; }

    [Required]
    [MaxLength(50)]
    public string Name { get; set; }

    public JObject ExtendedData { get; set; }
}

public class CampaignConfiguration : IEntityTypeConfiguration 
{
    public void Configure(EntityTypeBuilder builder) 
    {
        builder
            .Property(application => application.ExtendedData)
            .HasJsonValueConversion();
    }
}