Post json string to WCF method

Question

I have WCF method

[OperationContract]
[WebInvoke(Method = "POST",
RequestFormat = WebMessageFormat.Json,
ResponseFormat = WebMessageFormat.Json,
BodyStyle = WebMessageBodyStyle.Wrapped)]
string PostNewOrder(string OrderData);

This is the json string which I am posting

{
    "customerId": " ",
    "langCode": "SE",
    "timeZone": "38",
    "orderNumber": "1122519",
    "orderDate": "2016-04-13 15:56:36",
    "deliveryNumber": "625615",
    "devices": "000000001050840;",
    "transactionId": "24",
    "shipDate": "2016-04-13 16:41:31"
}

But I am getting OrderData as null in the WCF method

If I post string

"{\"customerId\":\" \",\"langCode\":\"SE\",\"timeZone\":\"38\",\"orderNumber\":\"1122519\",\"orderDate\":\"2016-04-13 15:56:36\",\"deliveryNumber\":\"625615\",\"devices\":\"000000001050840;\",\"transactionId\":\"24\",\"shipDate\":\"2016-04-13 16:41:31\"}"

It works fine but this is not a proper json , Thanks in Advance..

Can you show us the code where you convert your object to the json string? — bit
– bit, Commented Apr 14, 2016 at 10:31
No i am just using post man client to post the json string to wcf method. — Sagar Jagadesh
– Sagar Jagadesh, Commented Apr 14, 2016 at 10:49

Amit Kumar Ghosh · Accepted Answer · 2016-04-14 10:54:01Z

your contract should look something like -

    [OperationContract]
    [WebInvoke(Method = "POST",
    RequestFormat = WebMessageFormat.Json,
    ResponseFormat = WebMessageFormat.Json ,
    UriTemplate="/post")]
    string PostNewOrder(RootObject OrderData);

where RootObject should look like -

public class RootObject
{
    public string customerId { get; set; }
    public string langCode { get; set; }
    public string timeZone { get; set; }
    public string orderNumber { get; set; }
    public string orderDate { get; set; }
    public string deliveryNumber { get; set; }
    public string devices { get; set; }
    public string transactionId { get; set; }
    public string shipDate { get; set; }
}

what you are posting is a json object representation and not a string and the WCF Runtime is expected to deserialize the content to it's equivalent strongly typed object at server.

Amr Deif · Accepted Answer · 2016-04-14 10:40:49Z

0

I think you need to remove RequestFormat and ResponseFormat from OperationContract

answered Apr 14, 2016 at 10:40

Amr Deif

1031 silver badge14 bronze badges

3 Comments

Sagar Jagadesh Over a year ago

ya i tried this but i am getting this error :The server encountered an error processing the request. The exception message is 'There was an error deserializing the object of type System.String. End element 'root' from namespace '' expected. Found element 'customerId' from namespace ''.'.

Amr Deif Over a year ago

Like That: var text = '{ "employees" : [' + '{ "firstName":"John" , "lastName":"Doe" },' + '{ "firstName":"Anna" , "lastName":"Smith" },' + '{ "firstName":"Peter" , "lastName":"Jones" } ]}';

Amit Kumar Ghosh Over a year ago

the request payload is not even a string

chaya D · Accepted Answer · 2020-08-17 10:04:29Z

0

this is an old question, but in case anyone needs an answer for this:

you will need to wrap your json string in anoter string.

i was using angular - so in my case i did this:

let doc = new FileData();
...
let jsonObj = JSON.stringify(doc); //json object string

let strObj = JSON.stringify(jsonObj); //json object string wrapped with string

answered Aug 17, 2020 at 10:04

chaya D

1673 silver badges15 bronze badges

Collectives™ on Stack Overflow

Post json string to WCF method

3 Answers 3

Comments

3 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

3 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related