I have a problem with a service. I create a custom service with 1 method. When I test it on debug mode it work awesome, but when I call it with $.ajax it give a 50 error:

"{"Message":"There was an error processing the request.","StackTrace":"","ExceptionType":""}"

Not even get into the service. I have tested as a dummy returning just a simple string and it gives me the same error.

My method code:

[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public object GetRespuestas(string idSolicitudServicio)
            Log.Monitorear("*** GetRespuestas - Iniciando");
            List<DocumentosProceso> listDocumentosProceso = new List<DocumentosProceso>();

            System.Net.NetworkCredential credentials = new System.Net.NetworkCredential("user", "pass", "domain");
            CredentialCache cc = new CredentialCache();

            cc.Add(new Uri(Sitio), "Negotiate", credentials);
            cc.Add(new Uri(Sitio), "Basic", credentials);
            cc.Add(new Uri(Sitio), "NTLM", credentials);

            using (ClientContext context = new ClientContext(Sitio))
                Log.Monitorear("*** GetRespuestas - Iniciando Contexto en sitio: " + Sitio);
                context.Credentials = cc;
                context.AuthenticationMode = ClientAuthenticationMode.Default;
                context.ExecutingWebRequest += new EventHandler<WebRequestEventArgs>(clientContext_ExecutingWebRequest);

                Microsoft.SharePoint.Client.List list = context.Web.Lists.GetByTitle("Documentos Licitacion");
                FieldCollection fieldColl = list.Fields;

                Microsoft.SharePoint.Client.CamlQuery query = new Microsoft.SharePoint.Client.CamlQuery();
                query.ViewXml = "<View><Query><Where><And><Eq><FieldRef Name='IdSolicitudServicio' /><Value Type='Text'>" + idSolicitudServicio + "</Value></Eq><And><Eq><FieldRef Name='Aplica' /><Value Type='Choice'>Externo</Value></Eq><Eq><FieldRef Name='TipoDocumento' /><Value Type='Text'>Archivo de Respuestas y Aclaraciones</Value></Eq></And></And></Where></Query></View>";
                ListItemCollection listItems = list.GetItems(query);

                Log.Monitorear("*** GetRespuestas - Query Ejecutada");

                if (listItems.Count > 0)
                    Log.Monitorear("*** GetRespuestas - Se encontraron " + listItems.Count + " registros");
                    foreach (ListItem doc in listItems)
                        DocumentosProceso documentosProceso = new DocumentosProceso();
                        documentosProceso.ID =
                            limpiarID((doc["ID"] == null)
                                ? ""
                                : doc["ID"].ToString());

                        documentosProceso.Nombre =
                           limpiarID((doc["FileLeafRef"] == null)
                               ? ""
                               : doc["FileLeafRef"].ToString());

                        documentosProceso.Url =
                           limpiarID((doc["FileRef"] == null)
                               ? ""
                               : doc["FileRef"].ToString());

                        documentosProceso.TipoDocumento =
                           limpiarID((doc["TipoDocumento"] == null)
                               ? ""
                               : doc["TipoDocumento"].ToString());


            return _js.Serialize(listDocumentosProceso);

My ajax call:

var body = JSON.stringify({IdSolicitudServicio: 09112016122351});
var urlServicio = "http://vmsps2013:800/_layouts/15/SGL_Services/SGL_Service_2.asmx";

    url: urlServicio +"/GetRespuestas",
    type: "POST",
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    data: body,
    success: function(data2) {
    error: function(data) {

I would appreciate your help

  • nevermind already found my error... I'm an idiot. sorry – Marco Nov 25 '16 at 20:46

You cannot just do an ajax request, you must use SP.RequestExecutor. The call is pretty much the same as jQuery ajax. First you declare a new object of RequestExecutor, then u call executeAsync. And here's MSDN page with usage example.

Your code would be like this:

var url = "http://vmsps2013:800";
var urlServicio = "http://vmsps2013:800/_layouts/15/SGL_Services/SGL_Service_2.asmx";
var body = JSON.stringify({IdSolicitudServicio: 09112016122351});
var executor = new SP.RequestExecutor(url);
        url: urlServicio,
        method: "POST",
        body: body,
        headers: { "Accept": "application/json", "Content-Type": "application/json" },
        success: function(data2) {
        error: function(data) {

Why do you use Client Object Model in your web-service, when you can use Server Object Model? Which is easier to code, in my opinion.

| improve this answer | |
  • first that is not true. second my error was the parameter, key sensittive – Marco Nov 25 '16 at 20:47

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