C#.NET code sample to call eBay Trading API using .NET framework 4

Code in the Program.cs file

using System;

using System.Configuration;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.ServiceModel.Channels;

using System.ServiceModel;

using eBayTrading_WSDL_Sample.eBayAPIInterfaceService;

namespace eBayTrading_WSDL_Sample

{

    class Program

    {

        static void Main(string[] args)

        {

            string signinURL = "https://api.sandbox.ebay.com/wsapi";

            string callname = "GeteBayOfficialTime";

            string siteID = "0";

            string appID = "YOUR_APPID_HERE";

            string version = "768";

            string eBayToken = "YOUR_TOKEN _HERE”;

            string endpointURL = signinURL + "?callname=" + callname +

                                "&siteid=" + siteID +

                                "&appid=" + appID +

                                "&version=" + version +

                                "&routing=default";

            eBayAPIInterfaceClient service = new eBayAPIInterfaceClient("eBayAPI", endpointURL);

            EndpointAddress address = new EndpointAddress(endpointURL);

            service.Endpoint.Address = address;

            GeteBayOfficialTimeRequestType request = new GeteBayOfficialTimeRequestType();     

            request.Version = version;

            request.WarningLevelSpecified = true;

            request.WarningLevel = WarningLevelCodeType.High;

            CustomSecurityHeaderType cred = new CustomSecurityHeaderType();

            cred.eBayAuthToken = eBayToken;

            GeteBayOfficialTimeResponseType res = service.GeteBayOfficialTime(ref cred, request);

            Console.WriteLine("Ack: " + res.Ack.ToString());

            Console.WriteLine("Official Time is: " + res.Timestamp);

            Console.ReadLine();

        }

    }

}

App.Config file entries

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

    <system.serviceModel>

        <bindings>

            <basicHttpBinding>

                <binding name="eBayAPISoapBinding" closeTimeout="00:01:00" openTimeout="00:01:00"

                    receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false"

                    bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"

                    maxBufferSize="655360" maxBufferPoolSize="524288" maxReceivedMessageSize="655360"

                    messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"

                    useDefaultWebProxy="true">

                    <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="163840"

                        maxBytesPerRead="4096" maxNameTableCharCount="163840" />

                    <security mode="Transport">

                        <transport clientCredentialType="None" proxyCredentialType="None"

                            realm="" />

                        <message clientCredentialType="UserName" algorithmSuite="Default" />

                    </security>

                </binding>

                <binding name="eBayAPISoapBinding1" closeTimeout="00:01:00" openTimeout="00:01:00"

                    receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false"

                    bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"

                    maxBufferSize="655360" maxBufferPoolSize="524288" maxReceivedMessageSize="655360"

                    messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"

                    useDefaultWebProxy="true">

                    <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="163840"

                        maxBytesPerRead="4096" maxNameTableCharCount="163840" />

                    <security mode="None">

                        <transport clientCredentialType="None" proxyCredentialType="None"

                            realm="" />

                        <message clientCredentialType="UserName" algorithmSuite="Default" />

                    </security>

                </binding>

            </basicHttpBinding>

        </bindings>

        <client>

            <endpoint address="https://api.ebay.com/wsapi" binding="basicHttpBinding"

                bindingConfiguration="eBayAPISoapBinding" contract="eBayAPIInterfaceService.eBayAPIInterface"

                name="eBayAPI" />

        </client>

    </system.serviceModel>

</configuration>