如何使用json使用发布请求（Web API C＃）

Question

I am facing a strange issue. I am trying to consume a json object from a post (made in postman):

POST /api/orders/ HTTP/1.1
Host: localhost:61595
Content-Type: application/json
Cache-Control: no-cache
Postman-Token: 1b628111-4498-e175-733b-00172ad529d6

{
   "Fname" : "Jonathan",
   "Lname" : "Barker",
   "OrderItem" : "64734"
}

My controller looks like this:

// POST: api/Orders
    public void Post([FromBody]string value)
    {
        var oMycustomclassname =Newtonsoft.Json.JsonConvert.DeserializeObject<dynamic>(value);
    }

In debug value is null. I am sure I am missing something simple. Can someone please explain what I am doing wrong? Thanks!

Answer 1

you can create a class for your parameter:

class Order
{
    public string OrderItem {get;set;}
    public string Fname {get;set;}
    public string Lname {get;set;}
}

Then you can change string to Order in your API parameter:

// POST: api/Orders
public void Post([FromBody]Order value)
{
    //value already contains Lname, Fname, and OrderItem.
    //Access it like this: value.Lname
}