I am using entity framwork in my Wep Api project. My model is realational and line this:

```
public class Blog
{
    public int Id { get; set; }
    public string Name { get; set; }

    public virtual ICollection<Article> Articles { get; set; }
}
public class Article
{
    public int Id { get; set; }
    public int BlogId { get; set; }
    public string Title { get; set; }
    public string Content { get; set; }

    public virtual Blog Blog { get; set; }
}

```

context is like this:

```
public class BloggingContext: DbContext
{
    public DbSet<Blog> Blogs { get; set; }
    public DbSet<Article> Articles { get; set; }
}

```

And I am using this in my asp.net Web Api controller.

```
public class BlogController: ApiController{
      public IEnumerable<Blog> Get(){

           var context = new BloggingContext();

           return context.Blogs.ToList();
      }
}

```

My approach is to get data with Lazy Loading, and serialize to JSON data as Web Api response.

`context.Blogs.ToList()` returns the relational data (I see on breakpoint). 

But Web Api result has error. 

**Exception Message:**

> 
> The 'ObjectContent`1' type failed to serialize the response body for
>  content type 'application/json; charset=utf-8
> 
> 
> 

inner exception:

> 
> Error getting value from 'Blog' on
>  'System.Data.Entity.DynamicProxies.Article\_D002A1ECE031410435306DCEF780AFF03EBB8BD36DA603662C993107FAEB1917 "ExceptionType": "Newtonsoft.Json.JsonSerializationException
> 
> 
> 

I set my `WebApiConfig.cs` 

```
 var jsonFormatter = config.Formatters.OfType<JsonMediaTypeFormatter>().First();
 jsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
 jsonFormatter.SerializerSettings.PreserveReferencesHandling = Newtonsoft.Json.PreserveReferencesHandling.Objects;
 config.Formatters.Remove(config.Formatters.XmlFormatter);

```