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Asp.net – How do I declare the CreatedBy field to be null for serialization but non null for database?ll

In my server, my field "Name" is marked as [Required] so EntityFramework can mark it as non nullable on the migration:

public class MyClass
{
   [Required]
   public string? CreatedBy {get;set;}
}

But the "CreatedBy" field is set at creation on the server, so the first time it must travel as NULL from the client

So I get a serialization error:

https://tools.ietf.org/html/rfc7231#section-6.5.1

[‘The CreatedBy field is required.’]

How do I declare the CreatedBy field to be null for serialization but non null for database?

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2

Answers


  1. Chosen as BEST ANSWER
    0

    Since I don't want to use fluent api for this, I decided to disable the serialization validation:

    program.cs

    builder.Services.AddControllers(
    options => options.SuppressImplicitRequiredAttributeForNonNullableReferenceTypes = true);

...

builder.Services.Configure<ApiBehaviorOptions>(options
    => options.SuppressModelStateInvalidFilter = true);

...

  2. 0

    Remove the Required-Attribute and set the CreatedBy field as required in OnModelCreating():

    protected override void OnModelCreating(ModelBuilder modelBuilder)
{
    modelBuilder
        .Entity<MyClass>()
        .Property(x => x.CreatedBy)
        .IsRequired();
}
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