C# SOAP Call for Kelio Service Authentication issue

Question

I need to connect Bodet KELIO SOAP Service from a C# application. The documentation for connecting the service is here : https://kelio.help.kelio.io/V5.1P5/fr-FR/webservices/index.html

Test queries are OK from SOAP-UI

I tried to generate the code from the connected service in my projet, using the visual studio 2022 wizard from the WSDL located : https://sandbox-ws.kelio.io/open/services/LightEmployeeService?wsdl user is : api-ws password : ws-sandbox

But when I try to consume it with VS

void SalarieTEst()
{
    Salaries.LightEmployeeServicePortTypeClient client = new Salaries.LightEmployeeServicePortTypeClient();
    client.ClientCredentials.UserName.UserName = "api-ws";
    client.ClientCredentials.UserName.Password = "api-sandbox";

    var toto = client.exportLightEmployees("", "");
}

I get the following error :

System.ServiceModel.Security.MessageSecurityException : 'La requête HTTP n'est pas autorisée avec un schéma d'authentification client 'Anonymous'. L'en-tête d'authentification reçu du serveur était 'Basic realm="Bodet Realm"'.'

I tried the code generated by SOAPUI instead, I get a security connection error, but, the result seems to be mismatched, every data are null.

At last, I try to simply query with a standard HttpClient:

async Task TestSoap()
{
    var url = @"https://sandbox-ws.kelio.io/open/services/LightEmployeeService";
    var soapEnveloppe = @"<soapenv:Envelope xmlns:soapenv=""http://schemas.xmlsoap.org/soap/envelope/"" xmlns:ech=""http://echange.service.open.bodet.com"">
<soapenv:Header/>
<soapenv:Body>
<ech:exportLightEmployeesList>
<!--Optional:-->
<ech:exportFilter>
<!--Zero or more repetitions:-->
<ech:AskedPopulation>
<!--Optional:-->
<ech:populationFilter>Kelio Démonstration</ech:populationFilter>
<!--Optional:-->
<ech:groupFilter>Cadres</ech:groupFilter>
<!--Optional:-->
<ech:populationMode>0</ech:populationMode>
</ech:AskedPopulation>
</ech:exportFilter>
</ech:exportLightEmployeesList>
</soapenv:Body>
</soapenv:Envelope>";

    string username = "api-ws";
    string password = "api-sandbox";
    string domain = "Bodet"; // Optional

    var AuthToken = Convert.ToBase64String(Encoding.UTF8.GetBytes($"{username}:{password}"));

    using (var Client = new HttpClient())
    {
        var request = new HttpRequestMessage(HttpMethod.Post, url);
        Client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", AuthToken);
        request.Content = new StringContent(soapEnveloppe, Encoding.UTF8, "text/xml");

        var response = await Client.PostAsync(url, request.Content);
    }
}

But the same http 403 error occurs.

I also tried with HttpClienderhandler and PreAuthenticate, but always get the same result....

Please help :)

RG rg · Accepted Answer · 2025-09-02 15:09:32Z

I had similar issues as you.
When using a connected service, you need to add the authentication type to the binding when initializing the LightEmployeeServicePortTypeClient object, and also increase the MaxReceivedMessageSize.

After that, I was indeed receiving 204 employees, but with no values at all.

public void test1()
{
    EndpointAddress endpointAdress = new EndpointAddress("https://sandbox-ws.kelio.io/open/services/LightEmployeeService");
    BasicHttpsBinding binding = new BasicHttpsBinding();

    binding.MaxReceivedMessageSize = 1048576;

    binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Basic;

    ServiceReference1.LightEmployeeServicePortTypeClient client = new ServiceReference1.LightEmployeeServicePortTypeClient(binding, endpointAdress);


    client.ClientCredentials.UserName.UserName = "api-ws";
    client.ClientCredentials.UserName.Password = "api-sandbox";

    ServiceReference1.LightEmployee[] response =  client.exportLightEmployees("Kelio Démonstration", "0");
}

So I switched to a simple POST request, like in your second attempt.

I ran into the same problem as well — error 403 — it was simply because the SOAPAction header was missing.

public async Task<string> SoapCallWAuth(string url, string SoapAction, string login, string pass, string PostBody)
{
    var AuthToken = Convert.ToBase64String(Encoding.UTF8.GetBytes($"{login}:{pass}"));
    string returnXML = "";
    try
    {
        using (var Client = new HttpClient())
        {
            var request = new HttpRequestMessage(HttpMethod.Post, url);
            Client.DefaultRequestHeaders.Add("SOAPAction", SoapAction);
            Client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", AuthToken);

            request.Content = new StringContent(PostBody, Encoding.UTF8, "text/xml");

            var response = await Client.PostAsync(url, request.Content);
            returnXML = await response.Content.ReadAsStringAsync();

        }
    }
    catch (Exception ex)
    {
    }
    return returnXML;
}

public async Task testFct()
{
    var url = @"https://sandbox-ws.kelio.io/open/services/LightEmployeeService";
    var soapEnveloppe = @"<soapenv:Envelope xmlns:soapenv=""http://schemas.xmlsoap.org/soap/envelope/"" xmlns:ech=""http://echange.service.open.bodet.com"">
       <soapenv:Header/>
       <soapenv:Body>
          <ech:exportLightEmployees>
             <ech:populationFilter>Kelio Démonstration</ech:populationFilter>
             <ech:groupFilter>0</ech:groupFilter>
          </ech:exportLightEmployees>
       </soapenv:Body>
    </soapenv:Envelope>";

    try
    {

        string retourXML = await SoapCallWAuth(url, "urn:exportLightEmployees", "api-ws", "api-sandbox", soapEnveloppe);


        XmlDocument xmlDocument = new XmlDocument();
        XmlNamespaceManager nsmgr = new XmlNamespaceManager(xmlDocument.NameTable);
        nsmgr.AddNamespace("soap", "http://schemas.xmlsoap.org/soap/envelope/");
        nsmgr.AddNamespace("ns1", "http://echange.service.open.bodet.com");
        xmlDocument.LoadXml(retourXML);


        XmlNodeList NodeLists = xmlDocument.SelectNodes(@"/soap:Envelope/soap:Body/ns1:exportLightEmployeesResponse/ns1:exportedLightEmployees/ns1:LightEmployee", nsmgr);
        foreach (XmlNode Node in NodeLists)
        {
            Console.WriteLine(Node.InnerText);
        }
    }
    catch (Exception ex)
    {

    }
}

arfff · Accepted Answer · 2025-11-28 09:11:36Z

0

After that, I was indeed receiving 204 employees, but with no values at all.

I had similar issues too, running the code generated by Visual Studio 2022. I could solve it removing the Order property in the XmlElement Attributes :

[System.Xml.Serialization.XmlElementAttribute(IsNullable=true, Order=0)]

changed to

[System.Xml.Serialization.XmlElementAttribute(IsNullable=true)]

Order values generated by VS seem to be incorrect for inherited classes and cause empty properties in deserialized data

answered Nov 28 at 9:11

arfff

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