how do we create a data contract

Question

how do we create a sample data contract

Answer 1

Hi @Syamala Vishnuvajhala ,
A data contract is a formal agreement between a service and a client that abstractly describes the data to be exchanged.
I suggest you can learn from the documentation.
https://learn.microsoft.com/en-us/dotnet/framework/wcf/feature-details/using-data-contracts
https://learn.microsoft.com/en-us/dotnet/api/system.runtime.serialization.datacontractattribute?view=net-6.0
The following example shows how a data contract for the MyTypes.PurchaseOrder type is created by applying the DataContractAttribute and DataMemberAttribute attributes to the class and its members.

namespace MyTypes  
{  
    [DataContract]  
    public class PurchaseOrder  
    {  
        private int poId_value;  
  
        // Apply the DataMemberAttribute to the property.  
        [DataMember]  
        public int PurchaseOrderId  
        {  
  
            get { return poId_value; }  
            set { poId_value = value; }  
        }  
    }  
}  

EDIT

 [ServiceContract]  
    public interface IService1  
    {  
        [OperationContract]  
        string GetData();  
    }    
    [DataContract]  
    public class Customer  
    {  
        [DataMember]  
        public int ID { get; set; }  
        [DataMember]  
        public string Name { get; set; }  
    }  
public class Ser vice1 : ISe rvice1  
    {  
        public string GetData()  
        {  
           Customer c = new Customer()    { ID = 1, Name = "Allen" };  
           string json;  
           using (MemoryStream ms = new MemoryStream())  
           {  
            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(Customer));  
            ser.WriteObject(ms, c);  
            json = Encoding.UTF8.GetString(ms.GetBuffer(), 0, Convert.ToInt16(ms.Length));  
        }  

        return json;  
    }  

Best regards,
Lan Huang

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Answer 2

Thanks Lan, the one which is in example is in C#.
can you provide any sample code in YAML or json please

Answer 3

can we do a data contract in YAML/json instead of C# ? The one which is there in the docs are in C#