BookStoreContext.cs

BookStoreContext.cs

public class BookStoreContext : DbContext
{
   public BookStoreContext(DbContextOptions<BookStoreContext> options)
     : base(options)
   {
   }

   public DbSet<Book> Books { get; set; }
   public DbSet<Press> Presses { get; set; }

   protected override void OnModelCreating(ModelBuilder modelBuilder)
   {
      modelBuilder.Entity<Book>().OwnsOne(c => c.Location);
   }
}

Response header: (Should be "application/json; odata.metadata=minimal; odata.streaming=true"?) I got:
Content-Type application/json; charset=utf-8

@fabriziogelsi I see. Did you add more books into the Datasource? In my sample, there's only two books sample, you add "PageSize=2", the whole data source meets the page size requirement, so the server returns all data and no nextlink added.

If you change to [Pagesize=1], you will get the response:

{
    "@odata.context": "http://localhost:5001/odata/$metadata#Books",
    "value": [
        {
            "Id": 1,
            "ISBN": "978-0-321-87758-1",
            "Title": "Essential C#5.0",
            "Author": "Mark Michaelis",
            "Price": 59.99,
            "Location": {
                "City": "Redmond",
                "Street": "156TH AVE NE"
            }
        }
    ],
    "@odata.nextLink": "http://localhost:5001/odata/Books?$skip=1"
}

Yes, I added 5 books. When I do the same than you, the response is:

[ { "id": 1, "isbn": "978-0-321-87758-1", "title": "Essential C#5.0", "author": "Mark Michaelis", "price": 59.99, "location": { "city": "Redmond", "street": "156TH AVE NE" }, "press": { "id": 1, "name": "Addison-Wesley", "email": null, "category": 0 } } ]

Which version NetCore are you using? And OData?. I see all the examples in internet that the response contains all the data, but I can't take the same response, Idk why :S I've just copied your example, and added the "[Enable Query(PageSize =)]" what is working, the pagination, but the other data is not retrieve.

Your payload looks a "Normal" JSON Payload, it's not OData JSON Payload. OData JSON Payload includes both control information and entity data. "@odata.context" and "@odata.nextLink" are control data, why does your data not have "@odata.context"? Do you set the metadata level as None? However, your metadata is "odata.metadata=minimal" not "odata.metadata=none". So, it's weird. Please compare your sample with my sample to see what's the difference.

I didn't change my project configuration. I cloned the sample and built/run in the Visual Studio 2019.

No. My header's response is: Content-Type application/json; charset=utf-8
I was wondering if I should receive a header like this: "application/json; odata.metadata=minimal; odata.streaming=true".
I will check again, but I've just copied your sample, so I don't understand why is not working :S. I'm using VS2019 too.

Great @xuzhg :)