diff --git a/F4SDM42WebApi/F4SDM42WebApiController.cs b/F4SDM42WebApi/F4SDM42WebApiController.cs
index db3d9fc..feb8374 100644
--- a/F4SDM42WebApi/F4SDM42WebApiController.cs
+++ b/F4SDM42WebApi/F4SDM42WebApiController.cs
@@ -94,16 +94,52 @@ namespace C4IT.F4SD
             return GetRequiredService<IJournalService>();
         }
 
+        private string GetQueryValue(string name)
+        {
+            return Request?.GetQueryNameValuePairs()
+                .FirstOrDefault(pair => string.Equals(pair.Key, name, StringComparison.OrdinalIgnoreCase))
+                .Value;
+        }
+
+        private string QueryValue(string value, string name)
+        {
+            return GetQueryValue(name) ?? value ?? string.Empty;
+        }
+
+        private int QueryValue(int value, string name)
+        {
+            return int.TryParse(GetQueryValue(name), out var parsed) ? parsed : value;
+        }
+
+        private Guid QueryValue(Guid value, string name)
+        {
+            return Guid.TryParse(GetQueryValue(name), out var parsed) ? parsed : value;
+        }
+
+        private Guid? QueryValue(Guid? value, string name)
+        {
+            return Guid.TryParse(GetQueryValue(name), out var parsed) ? parsed : value;
+        }
+
+        private TEnum QueryValue<TEnum>(TEnum value, string name) where TEnum : struct
+        {
+            return Enum.TryParse<TEnum>(GetQueryValue(name), true, out var parsed) ? parsed : value;
+        }
+
         [Route("getDirectLinkCreateTicket"), HttpGet]
         public async Task<F4SDHelperService.DirectLink> getDirectLinkCreateTicket([FromUri] string sid = "", [FromUri] string assetname = "")
         {
             await Task.Delay(0);
+            sid = QueryValue(sid, nameof(sid));
+            assetname = QueryValue(assetname, nameof(assetname));
             return await _f4stHelperService.getDirectLinkCreateTicket(sid, assetname)
                 ?? new F4SDHelperService.DirectLink();
         }
         [Route("getDirectLinkF4SD"), HttpGet]
         public async Task<string> getDirectLinkF4SD([FromUri] Guid eoid, [FromUri] string type)
         {
+            eoid = QueryValue(eoid, nameof(eoid));
+            type = QueryValue(type, nameof(type));
             return await _f4stHelperService.getDirectLinkF4SD(eoid, type) ?? string.Empty;
         }
 
@@ -115,6 +151,10 @@ namespace C4IT.F4SD
             [FromUri] string queues = ""
         )
         {
+            sid = QueryValue(sid, nameof(sid));
+            hours = QueryValue(hours, nameof(hours));
+            queueoption = QueryValue(queueoption, nameof(queueoption));
+            queues = QueryValue(queues, nameof(queues));
             var decodedPairs = ParseQueues(queues);
 
             // Nun weiterreichen an Service
@@ -130,6 +170,7 @@ namespace C4IT.F4SD
         [Route("getTicketDetails"), HttpGet]
         public async Task<cF4SDTicket> getTicketDetails([FromUri] Guid objectId)
         {
+            objectId = QueryValue(objectId, nameof(objectId));
             var tickets = await _f4stHelperService.getTicketDetails(new List<Guid>() { objectId });
             if (tickets?.Count > 0)
                 return tickets[0];
@@ -140,6 +181,7 @@ namespace C4IT.F4SD
         [Route("getTicketHistory"), HttpGet]
         public async Task<List<cTicketJournalItem>> getTicketHistory([FromUri] Guid objectId)
         {
+            objectId = QueryValue(objectId, nameof(objectId));
             return await _f4stHelperService.GetJournalEntries(objectId) ?? new List<cTicketJournalItem>();
         }
 
@@ -152,6 +194,11 @@ namespace C4IT.F4SD
             [FromUri] string queues = ""
         )
         {
+            sid = QueryValue(sid, nameof(sid));
+            scope = QueryValue(scope, nameof(scope));
+            keys = QueryValue(keys, nameof(keys));
+            queueoption = QueryValue(queueoption, nameof(queueoption));
+            queues = QueryValue(queues, nameof(queues));
             var parsedKeys = (keys ?? string.Empty)
                 .Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries)
                 .Select(key => key.Trim())
@@ -197,6 +244,12 @@ namespace C4IT.F4SD
             [FromUri] string queues = ""
         )
         {
+            sid = QueryValue(sid, nameof(sid));
+            scope = QueryValue(scope, nameof(scope));
+            key = QueryValue(key, nameof(key));
+            count = QueryValue(count, nameof(count));
+            queueoption = QueryValue(queueoption, nameof(queueoption));
+            queues = QueryValue(queues, nameof(queues));
             var decodedQueues = ParseQueues(queues);
             return await _f4stHelperService.getTicketOverviewRelations(sid, scope, key, count, queueoption, decodedQueues)
                 ?? new List<F4SDHelperService.TicketOverviewRelationDto>();
@@ -216,6 +269,9 @@ namespace C4IT.F4SD
         public async Task<EntityEnumeration> getPickup([FromUri] string name, [FromUri] EntityEnumerationVisibilityMode mode = EntityEnumerationVisibilityMode.None, [FromUri] Int32 group = -1)
         {
             await Task.Delay(0);
+            name = QueryValue(name, nameof(name));
+            mode = QueryValue(mode, nameof(mode));
+            group = QueryValue(group, nameof(group));
             EntityEnumeration enumerationTemp = GetEnumeration(name, mode);
             var vals = enumerationTemp.Values;
 
@@ -253,6 +309,9 @@ namespace C4IT.F4SD
         [Route("getRoleMemberships")]
         public async Task<object> getRoleMemberships([FromUri] string sid = "", [FromUri] string upn = "", [FromUri] Guid? id = null)
         {
+            sid = QueryValue(sid, nameof(sid));
+            upn = QueryValue(upn, nameof(upn));
+            id = QueryValue(id, nameof(id));
             var filter = "";
 
             if (id != null && id.Value != Guid.Empty)
@@ -415,6 +474,7 @@ namespace C4IT.F4SD
             try
             {
                 await Task.Delay(0);
+                debug = QueryValue(debug, nameof(debug));
                 DefaultLogger.Manager.Level = debug == "1" || debug.Equals("true", StringComparison.OrdinalIgnoreCase) ? LogLevels.Debug : LogLevels.Info;
                 return DefaultLogger.Manager.Level.ToString();
             }
@@ -434,6 +494,9 @@ namespace C4IT.F4SD
         {
             try
             {
+                download = QueryValue(download, nameof(download));
+                count = QueryValue(count, nameof(count));
+                filter = QueryValue(filter, nameof(filter));
                 var response = _f4stHelperService.privGetLog(download, count, Request, filter);
                 if (response == null)
                     return new StatusCodeResult(HttpStatusCode.NoContent);