Add the Scroll method

ZeroLevel.Qdrant/Models/Point.cs

@@ -0,0 +1,9 @@
+namespace ZeroLevel.Qdrant.Models
+{
+    public sealed class Point
+    {
+        public long id { get; set; }
+        public dynamic payload;
+        public double[] vector;
+    }
+}

ZeroLevel.Qdrant/Models/Requests/PointsRequest.cs

@@ -3,5 +3,7 @@
     internal sealed class PointsRequest
     {
         public long[] ids { get; set; }
+        /*public bool with_payload { get; set; } = true;
+        public bool with_vector { get; set; } = true;*/
     }
 }

ZeroLevel.Qdrant/Models/Requests/ScrollRequest.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Text;
+using ZeroLevel.Qdrant.Models.Filters;
+
+namespace ZeroLevel.Qdrant.Models.Requests
+{
+    internal sealed class ScrollRequest
+    {
+        public Filter Filter { get; set; }
+        public bool WithPayload { get; set; } = true;
+        public bool WithVector { get; set; } = true;
+        public long Limit { get; set; }
+        public long Offset { get; set; }
+
+        /*
+         {
+    "filter": {
+        "must": [
+            { "has_id": [0, 3, 100] }
+        ]
+    },    
+    "limit": 10000,
+    "offset": 0,
+    "with_payload": false,
+    "with_vector": true
+}
+         */
+
+        public string ToJson()
+        {
+            var json = new StringBuilder();
+            json.Append("{");
+            if (Filter == null || Filter.IsEmpty)
+            {
+                throw new ArgumentException("Filter must not by null or empty");
+            }
+            else
+            {
+                json.Append(Filter.ToJSON());
+                json.Append(',');
+            }
+            json.Append($"\"limit\": {Limit},");
+            json.Append($"\"offset\": {Offset},");
+            json.Append($"\"with_payload\": {WithPayload.ToString().ToLowerInvariant()},");
+            json.Append($"\"with_vector\": {WithVector.ToString().ToLowerInvariant()}");
+            json.Append("}");
+            return json.ToString();
+
+        }
+    }
+}

ZeroLevel.Qdrant/Models/Responces/PointResponse.cs

@@ -1,12 +1,5 @@
 namespace ZeroLevel.Qdrant.Models.Responces
 {
-    public sealed class Point
-    {
-        public long id { get; set; }
-        public dynamic payload;
-        public double[] vector;
-    }
-
     public sealed class PointResponse
     {
         public Point[] result { get; set; }

ZeroLevel.Qdrant/Models/Responces/ScrollResponse.cs

@@ -0,0 +1,15 @@
+namespace ZeroLevel.Qdrant.Models.Responces
+{
+    public sealed class ScrollResult
+    {
+        public Point[] points { get; set; }
+        public long? next_page_offset { get; set; }
+    }
+
+    public sealed class ScrollResponse
+    {
+        public ScrollResult result { get; set; }
+        public string status { get; set; }
+        public float time { get; set; }
+    }
+}

ZeroLevel.Qdrant/QdrantClient.cs

@@ -171,8 +171,7 @@ namespace ZeroLevel.Qdrant
                 var points = new PointsRequest { ids = ids };
                 var json = JsonConvert.SerializeObject(points);
                 var data = new StringContent(json, Encoding.UTF8, "application/json");
-                var url = $"/collections/{collection_name}/points";
+                string url = $"/collections/{collection_name}/points";
-
                 var response = await _request<PointResponse>(url, new HttpMethod("POST"), data);
                 return InvokeResult.Succeeding<PointResponse>(response);
             }
@@ -182,6 +181,30 @@ namespace ZeroLevel.Qdrant
                 return InvokeResult.Fault<PointResponse>($"[QdrantClient.Points]  Collection name: {collection_name}.\r\n{ex.ToString()}");
             }
         }
+
+        /// <summary>
+        /// There is a method for retrieving points by their ids.
+        /// </summary>
+        public async Task<InvokeResult<ScrollResponse>> Scroll(string collection_name, Filter filter, long limit, long offset = 0, bool with_vector = true, bool with_payload = true)
+        {
+            try
+            {
+                var scroll = new ScrollRequest { Filter = filter, Limit = limit, Offset = offset, WithPayload = with_payload, WithVector = with_vector };
+                var json = scroll.ToJson();
+                var data = new StringContent(json, Encoding.UTF8, "application/json");
+                string url = url = $"/collections/{collection_name}/points/scroll";
+
+                var response = await _request<ScrollResponse>(url, new HttpMethod("POST"), data);
+                return InvokeResult.Succeeding<ScrollResponse>(response);
+            }
+            catch (Exception ex)
+            {
+                Log.Error(ex, $"[QdrantClient.Scroll] Collection name: {collection_name}.");
+                return InvokeResult.Fault<ScrollResponse>($"[QdrantClient.Scroll]  Collection name: {collection_name}.\r\n{ex.ToString()}");
+            }
+        }
+
+
         /// <summary>
         /// Record-oriented of creating batches
         /// </summary>