C#C
C#•14mo ago
Luca | LeCarbonator

✅ Binding Nested values in RequestBody to Model

Consider the following model I use inside the MVC structure:
public class Collection
{
    /// <summary>
    /// The UUID of this Collection
    /// </summary>
    public required string Id { get; set; }
    /// <summary>
    /// The external Url representing the entries of this collection
    /// </summary>
    public required string Url { get; set; }
    /// <summary>
    /// The date the Collection was created at.
    /// </summary>
    public required DateOnly CreatedAt { get; set; }
}


However, when responding to requests, this is instead formatted as 
application/hal+json
, which would look like this:
{
  "_links": {
    "self": {
      "href": "string"
    },
    "external": {
      "href": "string"
    }
  },
  "createdAt": "2024-11-18"
}


As you can see, the property 
Url
 has been moved into 
_links:external:href
.

Now I would like to receive a Collection in a 
[HttpPut]
 request, but I'm having trouble figuring out how to properly parse the incoming 
application/hal+json

to my Model.

I've read online that Model Binding is probably the solution to this, but the vast majority of examples and explanations I could find were centered around Routes / Query parameters, not RequestBody formatting.
The part I did find mentioned ValueProviders, but I couldn't find out how to obtain the JSON data from the body and store it as keys there.

Any suggestions are appreciated, as I'm rather new to MVC architecture and C# in general.
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