diff --git a/CoreIntegrationTests/CoreIntegrationTests.csproj b/CoreIntegrationTests/CoreIntegrationTests.csproj
index b89f770..2512b40 100644
--- a/CoreIntegrationTests/CoreIntegrationTests.csproj
+++ b/CoreIntegrationTests/CoreIntegrationTests.csproj
@@ -8,7 +8,6 @@
     <PackageReference Include="Microsoft.AspNetCore.Identity" Version="2.1.2" />
     <PackageReference Include="Microsoft.Extensions.Identity.Stores" Version="2.1.2" />
     <PackageReference Include="MongoDB.Driver" Version="2.12.0" />
-    <PackageReference Include="MongoDbGenericRepository" Version="1.4.6" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.console" Version="2.4.1">
       <PrivateAssets>all</PrivateAssets>
@@ -18,6 +17,10 @@
     <DotNetCliToolReference Include="dotnet-xunit" Version="2.3.0-beta4-build3742" />
   </ItemGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\MongoDbGenericRepository\MongoDbGenericRepository.csproj" />
+  </ItemGroup>
+
   <ItemGroup>
     <Reference Include="System.Configuration">
       <HintPath>..\..\..\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.6.1\System.Configuration.dll</HintPath>
diff --git a/MongoDbGenericRepository/Abstractions/IBaseReadOnlyRepository.cs b/MongoDbGenericRepository/Abstractions/IBaseReadOnlyRepository.cs
index 9370653..304607f 100644
--- a/MongoDbGenericRepository/Abstractions/IBaseReadOnlyRepository.cs
+++ b/MongoDbGenericRepository/Abstractions/IBaseReadOnlyRepository.cs
@@ -137,7 +137,8 @@ namespace MongoDbGenericRepository
         /// <typeparam name="TKey">The type of the primary key for a Document.</typeparam>
         /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="partitionKey">An optional partitionKey</param>
-        Task<long> CountAsync<TDocument, TKey>(Expression<Func<TDocument, bool>> filter, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        Task<long> CountAsync<TDocument, TKey>(Expression<Func<TDocument, bool>> filter, string partitionKey = null, CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>;
 
@@ -162,9 +163,13 @@ namespace MongoDbGenericRepository
         /// <typeparam name="TDocument">The document type.</typeparam>
         /// <typeparam name="TKey">The type of the primary key.</typeparam>
         /// <param name="filter">A LINQ expression filter.</param>
-        /// <param name="orderByDescending">A property selector to order by descending.</param>
+        /// <param name="maxValueSelector">A property selector to order by descending.</param>
         /// <param name="partitionKey">An optional partitionKey.</param>
-        Task<TDocument> GetByMaxAsync<TDocument, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, object>> orderByDescending, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        Task<TDocument> GetByMaxAsync<TDocument, TKey>(
+            Expression<Func<TDocument, bool>> filter,
+            Expression<Func<TDocument, object>> maxValueSelector,
+            string partitionKey = null, CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>;
 
@@ -186,9 +191,13 @@ namespace MongoDbGenericRepository
         /// <typeparam name="TDocument">The document type.</typeparam>
         /// <typeparam name="TKey">The type of the primary key.</typeparam>
         /// <param name="filter">A LINQ expression filter.</param>
-        /// <param name="orderByAscending">A property selector to order by ascending.</param>
+        /// <param name="minValueSelector">A property selector for the minimum value you are looking for.</param>
         /// <param name="partitionKey">An optional partitionKey.</param>
-        Task<TDocument> GetByMinAsync<TDocument, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, object>> orderByAscending, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        Task<TDocument> GetByMinAsync<TDocument, TKey>(Expression<Func<TDocument, bool>> filter,
+            Expression<Func<TDocument, object>> minValueSelector,
+            string partitionKey = null,
+            CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>;
 
@@ -198,9 +207,9 @@ namespace MongoDbGenericRepository
         /// <typeparam name="TDocument">The document type.</typeparam>
         /// <typeparam name="TKey">The type of the primary key.</typeparam>
         /// <param name="filter">A LINQ expression filter.</param>
-        /// <param name="orderByAscending">A property selector to order by ascending.</param>
+        /// <param name="minValueSelector">A property selector for the minimum value you are looking for.</param>
         /// <param name="partitionKey">An optional partitionKey.</param>
-        TDocument GetByMin<TDocument, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, object>> orderByAscending, string partitionKey = null)
+        TDocument GetByMin<TDocument, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, object>> minValueSelector, string partitionKey = null)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>;
 
@@ -211,9 +220,14 @@ namespace MongoDbGenericRepository
         /// <typeparam name="TKey">The type of the primary key.</typeparam>
         /// <typeparam name="TValue">The type of the value used to order the query.</typeparam>
         /// <param name="filter">A LINQ expression filter.</param>
-        /// <param name="orderByAscending">A property selector to order by ascending.</param>
+        /// <param name="maxValueSelector">A property selector for the maximum value you are looking for.</param>
         /// <param name="partitionKey">An optional partitionKey.</param>
-        Task<TValue> GetMaxValueAsync<TDocument, TKey, TValue>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TValue>> orderByAscending, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        Task<TValue> GetMaxValueAsync<TDocument, TKey, TValue>(
+            Expression<Func<TDocument, bool>> filter,
+            Expression<Func<TDocument, TValue>> maxValueSelector,
+            string partitionKey = null,
+            CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>;
 
@@ -224,9 +238,9 @@ namespace MongoDbGenericRepository
         /// <typeparam name="TKey">The type of the primary key.</typeparam>
         /// <typeparam name="TValue">The type of the value used to order the query.</typeparam>
         /// <param name="filter">A LINQ expression filter.</param>
-        /// <param name="orderByDescending">A property selector to order by ascending.</param>
+        /// <param name="maxValueSelector">A property selector to order by ascending.</param>
         /// <param name="partitionKey">An optional partitionKey.</param>
-        TValue GetMaxValue<TDocument, TKey, TValue>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TValue>> orderByDescending, string partitionKey = null)
+        TValue GetMaxValue<TDocument, TKey, TValue>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TValue>> maxValueSelector, string partitionKey = null)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>;
 
@@ -239,7 +253,12 @@ namespace MongoDbGenericRepository
         /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="minValueSelector">A property selector to order by ascending.</param>
         /// <param name="partitionKey">An optional partition key.</param>
-        Task<TValue> GetMinValueAsync<TDocument, TKey, TValue>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TValue>> minValueSelector, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        Task<TValue> GetMinValueAsync<TDocument, TKey, TValue>(
+            Expression<Func<TDocument, bool>> filter,
+            Expression<Func<TDocument, TValue>> minValueSelector,
+            string partitionKey = null,
+            CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>;
 
@@ -268,9 +287,11 @@ namespace MongoDbGenericRepository
         /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="selector">The field you want to sum.</param>
         /// <param name="partitionKey">The partition key of your document, if any.</param>
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
         Task<int> SumByAsync<TDocument, TKey>(Expression<Func<TDocument, bool>> filter,
                                                        Expression<Func<TDocument, int>> selector,
-                                                       string partitionKey = null)
+                                                       string partitionKey = null,
+                                                       CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>;
 
@@ -326,10 +347,15 @@ namespace MongoDbGenericRepository
         /// <typeparam name="TDocument">The type representing a Document.</typeparam>
         /// <typeparam name="TKey">The type of the primary key for a Document.</typeparam>
         /// <typeparam name="TProjection">The type representing the model you want to project to.</typeparam>
-        /// <param name="filter"></param>
+        /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="projection">The projection expression.</param>
         /// <param name="partitionKey">An optional partition key.</param>
-        Task<TProjection> ProjectOneAsync<TDocument, TProjection, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TProjection>> projection, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        Task<TProjection> ProjectOneAsync<TDocument, TProjection, TKey>(
+            Expression<Func<TDocument, bool>> filter,
+            Expression<Func<TDocument, TProjection>> projection,
+            string partitionKey = null,
+            CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>
             where TProjection : class;
@@ -354,13 +380,18 @@ namespace MongoDbGenericRepository
         /// <typeparam name="TDocument">The type representing a Document.</typeparam>
         /// <typeparam name="TKey">The type of the primary key for a Document.</typeparam>
         /// <typeparam name="TProjection">The type representing the model you want to project to.</typeparam>
-        /// <param name="filter"></param>
+        /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="projection">The projection expression.</param>
         /// <param name="partitionKey">An optional partition key.</param>
-        Task<List<TProjection>> ProjectManyAsync<TDocument, TProjection, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TProjection>> projection, string partitionKey = null)
-                                        where TDocument : IDocument<TKey>
-                                        where TKey : IEquatable<TKey>
-                                        where TProjection : class;
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        Task<List<TProjection>> ProjectManyAsync<TDocument, TProjection, TKey>(
+            Expression<Func<TDocument, bool>> filter,
+            Expression<Func<TDocument, TProjection>> projection,
+            string partitionKey = null,
+            CancellationToken cancellationToken = default)
+            where TDocument : IDocument<TKey>
+            where TKey : IEquatable<TKey>
+            where TProjection : class;
 
         /// <summary>
         /// Asynchronously returns a list of projected documents matching the filter condition.
@@ -455,12 +486,14 @@ namespace MongoDbGenericRepository
         /// <param name="skipNumber">The number of documents you want to skip. Default value is 0.</param>
         /// <param name="takeNumber">The number of documents you want to take. Default value is 50.</param>
         /// <param name="partitionKey">An optional partition key.</param>
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
         Task<List<TDocument>> GetSortedPaginatedAsync<TDocument, TKey>(
             Expression<Func<TDocument, bool>> filter,
             SortDefinition<TDocument> sortDefinition,
             int skipNumber = 0,
             int takeNumber = 50,
-            string partitionKey = null)
+            string partitionKey = null,
+            CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>;
 
diff --git a/MongoDbGenericRepository/DataAccess/Read/MongoDbReader.Main.cs b/MongoDbGenericRepository/DataAccess/Read/MongoDbReader.Main.cs
index 375c7fb..ab6e54c 100644
--- a/MongoDbGenericRepository/DataAccess/Read/MongoDbReader.Main.cs
+++ b/MongoDbGenericRepository/DataAccess/Read/MongoDbReader.Main.cs
@@ -343,13 +343,15 @@ namespace MongoDbGenericRepository.DataAccess.Read
         /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="selector">The field you want to sum.</param>
         /// <param name="partitionKey">The partition key of your document, if any.</param>
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
         public virtual async Task<int> SumByAsync<TDocument, TKey>(Expression<Func<TDocument, bool>> filter,
                                                        Expression<Func<TDocument, int>> selector,
-                                                       string partitionKey = null)
+                                                       string partitionKey = null,
+                                                       CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>
         {
-            return await GetQuery<TDocument, TKey>(filter, partitionKey).SumAsync(selector);
+            return await GetQuery<TDocument, TKey>(filter, partitionKey).SumAsync(selector, cancellationToken);
         }
 
         /// <summary>
diff --git a/MongoDbGenericRepository/DataAccess/Read/MongoDbReader.Project.cs b/MongoDbGenericRepository/DataAccess/Read/MongoDbReader.Project.cs
index 3499a66..378e86e 100644
--- a/MongoDbGenericRepository/DataAccess/Read/MongoDbReader.Project.cs
+++ b/MongoDbGenericRepository/DataAccess/Read/MongoDbReader.Project.cs
@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Linq.Expressions;
+using System.Threading;
 using System.Threading.Tasks;
 
 namespace MongoDbGenericRepository.DataAccess.Read
@@ -20,14 +21,19 @@ namespace MongoDbGenericRepository.DataAccess.Read
         /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="projection">The projection expression.</param>
         /// <param name="partitionKey">An optional partition key.</param>
-        public virtual async Task<TProjection> ProjectOneAsync<TDocument, TProjection, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TProjection>> projection, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        public virtual async Task<TProjection> ProjectOneAsync<TDocument, TProjection, TKey>(
+            Expression<Func<TDocument, bool>> filter, 
+            Expression<Func<TDocument, TProjection>> projection, 
+            string partitionKey = null,
+            CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>
             where TProjection : class
         {
             return await HandlePartitioned<TDocument, TKey>(partitionKey).Find(filter)
                                                                          .Project(projection)
-                                                                         .FirstOrDefaultAsync();
+                                                                         .FirstOrDefaultAsync(cancellationToken);
         }
 
         /// <summary>
@@ -58,14 +64,19 @@ namespace MongoDbGenericRepository.DataAccess.Read
         /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="projection">The projection expression.</param>
         /// <param name="partitionKey">An optional partition key.</param>
-        public virtual async Task<List<TProjection>> ProjectManyAsync<TDocument, TProjection, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TProjection>> projection, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        public virtual async Task<List<TProjection>> ProjectManyAsync<TDocument, TProjection, TKey>(
+            Expression<Func<TDocument, bool>> filter, 
+            Expression<Func<TDocument, TProjection>> projection, 
+            string partitionKey = null,
+            CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>
             where TProjection : class
         {
             return await HandlePartitioned<TDocument, TKey>(partitionKey).Find(filter)
                                                                    .Project(projection)
-                                                                   .ToListAsync();
+                                                                   .ToListAsync(cancellationToken);
         }
 
         /// <summary>
diff --git a/MongoDbGenericRepository/ReadOnlyMongoRepository.cs b/MongoDbGenericRepository/ReadOnlyMongoRepository.cs
index 260625e..9c9e33e 100644
--- a/MongoDbGenericRepository/ReadOnlyMongoRepository.cs
+++ b/MongoDbGenericRepository/ReadOnlyMongoRepository.cs
@@ -180,11 +180,12 @@ namespace MongoDbGenericRepository
         /// <typeparam name="TKey">The type of the primary key for a Document.</typeparam>
         /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="partitionKey">An optional partitionKey</param>
-        public async virtual Task<long> CountAsync<TDocument, TKey>(Expression<Func<TDocument, bool>> filter, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        public async virtual Task<long> CountAsync<TDocument, TKey>(Expression<Func<TDocument, bool>> filter, string partitionKey = null, CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>
         {
-            return await MongoDbReader.CountAsync<TDocument, TKey>(filter, partitionKey);
+            return await MongoDbReader.CountAsync<TDocument, TKey>(filter, partitionKey, cancellationToken);
         }
 
         /// <summary>
@@ -209,11 +210,15 @@ namespace MongoDbGenericRepository
         /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="maxValueSelector">A property selector to order by descending.</param>
         /// <param name="partitionKey">An optional partitionKey.</param>
-        public async virtual Task<TDocument> GetByMaxAsync<TDocument, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, object>> maxValueSelector, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        public async virtual Task<TDocument> GetByMaxAsync<TDocument, TKey>(
+            Expression<Func<TDocument, bool>> filter, 
+            Expression<Func<TDocument, object>> maxValueSelector, 
+            string partitionKey = null, CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>
         {
-            return await MongoDbReader.GetByMaxAsync<TDocument, TKey>(filter, maxValueSelector, partitionKey);
+            return await MongoDbReader.GetByMaxAsync<TDocument, TKey>(filter, maxValueSelector, partitionKey, cancellationToken);
         }
 
         /// <summary>
@@ -237,13 +242,17 @@ namespace MongoDbGenericRepository
         /// <typeparam name="TDocument">The document type.</typeparam>
         /// <typeparam name="TKey">The type of the primary key.</typeparam>
         /// <param name="filter">A LINQ expression filter.</param>
-        /// <param name="minValueSelector">A property selector to order by ascending.</param>
+        /// <param name="minValueSelector">A property selector for the minimum value you are looking for.</param>
         /// <param name="partitionKey">An optional partitionKey.</param>
-        public async virtual Task<TDocument> GetByMinAsync<TDocument, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, object>> minValueSelector, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        public async virtual Task<TDocument> GetByMinAsync<TDocument, TKey>(Expression<Func<TDocument, bool>> filter, 
+            Expression<Func<TDocument, object>> minValueSelector, 
+            string partitionKey = null,
+            CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>
         {
-            return await MongoDbReader.GetByMinAsync<TDocument, TKey>(filter, minValueSelector, partitionKey);
+            return await MongoDbReader.GetByMinAsync<TDocument, TKey>(filter, minValueSelector, partitionKey, cancellationToken);
         }
 
         /// <summary>
@@ -252,7 +261,7 @@ namespace MongoDbGenericRepository
         /// <typeparam name="TDocument">The document type.</typeparam>
         /// <typeparam name="TKey">The type of the primary key.</typeparam>
         /// <param name="filter">A LINQ expression filter.</param>
-        /// <param name="minValueSelector">A property selector to order by ascending.</param>
+        /// <param name="minValueSelector">A property selector for the minimum value you are looking for.</param>
         /// <param name="partitionKey">An optional partitionKey.</param>
         public virtual TDocument GetByMin<TDocument, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, object>> minValueSelector, string partitionKey = null)
             where TDocument : IDocument<TKey>
@@ -268,13 +277,18 @@ namespace MongoDbGenericRepository
         /// <typeparam name="TKey">The type of the primary key.</typeparam>
         /// <typeparam name="TValue">The type of the value used to order the query.</typeparam>
         /// <param name="filter">A LINQ expression filter.</param>
-        /// <param name="maxValueSelector">A property selector to select the max value.</param>
+        /// <param name="maxValueSelector">A property selector for the maximum value you are looking for.</param>
         /// <param name="partitionKey">An optional partitionKey.</param>
-        public async virtual Task<TValue> GetMaxValueAsync<TDocument, TKey, TValue>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TValue>> maxValueSelector, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        public async virtual Task<TValue> GetMaxValueAsync<TDocument, TKey, TValue>(
+            Expression<Func<TDocument, bool>> filter, 
+            Expression<Func<TDocument, TValue>> maxValueSelector, 
+            string partitionKey = null,
+            CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>
         {
-            return await MongoDbReader.GetMaxValueAsync<TDocument, TKey, TValue>(filter, maxValueSelector, partitionKey);
+            return await MongoDbReader.GetMaxValueAsync<TDocument, TKey, TValue>(filter, maxValueSelector, partitionKey, cancellationToken);
         }
 
         /// <summary>
@@ -302,11 +316,16 @@ namespace MongoDbGenericRepository
         /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="minValueSelector">A property selector to order by ascending.</param>
         /// <param name="partitionKey">An optional partition key.</param>
-        public virtual async Task<TValue> GetMinValueAsync<TDocument, TKey, TValue>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TValue>> minValueSelector, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        public virtual async Task<TValue> GetMinValueAsync<TDocument, TKey, TValue>(
+            Expression<Func<TDocument, bool>> filter, 
+            Expression<Func<TDocument, TValue>> minValueSelector, 
+            string partitionKey = null,
+            CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>
         {
-            return await MongoDbReader.GetMinValueAsync<TDocument, TKey, TValue>(filter, minValueSelector, partitionKey);
+            return await MongoDbReader.GetMinValueAsync<TDocument, TKey, TValue>(filter, minValueSelector, partitionKey, cancellationToken);
         }
 
         /// <summary>
@@ -337,13 +356,15 @@ namespace MongoDbGenericRepository
         /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="selector">The field you want to sum.</param>
         /// <param name="partitionKey">The partition key of your document, if any.</param>
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
         public virtual async Task<int> SumByAsync<TDocument, TKey>(Expression<Func<TDocument, bool>> filter,
                                                        Expression<Func<TDocument, int>> selector,
-                                                       string partitionKey = null)
+                                                       string partitionKey = null,
+                                                       CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>
         {
-            return await MongoDbReader.SumByAsync<TDocument, TKey>(filter, selector, partitionKey);
+            return await MongoDbReader.SumByAsync<TDocument, TKey>(filter, selector, partitionKey, cancellationToken);
         }
 
         /// <summary>
@@ -410,12 +431,17 @@ namespace MongoDbGenericRepository
         /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="projection">The projection expression.</param>
         /// <param name="partitionKey">An optional partition key.</param>
-        public virtual async Task<TProjection> ProjectOneAsync<TDocument, TProjection, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TProjection>> projection, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        public virtual async Task<TProjection> ProjectOneAsync<TDocument, TProjection, TKey>(
+            Expression<Func<TDocument, bool>> filter, 
+            Expression<Func<TDocument, TProjection>> projection, 
+            string partitionKey = null,
+            CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>
             where TProjection : class
         {
-            return await MongoDbReader.ProjectOneAsync<TDocument, TProjection, TKey>(filter, projection, partitionKey);
+            return await MongoDbReader.ProjectOneAsync<TDocument, TProjection, TKey>(filter, projection, partitionKey, cancellationToken);
         }
 
         /// <summary>
@@ -444,12 +470,16 @@ namespace MongoDbGenericRepository
         /// <param name="filter">A LINQ expression filter.</param>
         /// <param name="projection">The projection expression.</param>
         /// <param name="partitionKey">An optional partition key.</param>
-        public virtual async Task<List<TProjection>> ProjectManyAsync<TDocument, TProjection, TKey>(Expression<Func<TDocument, bool>> filter, Expression<Func<TDocument, TProjection>> projection, string partitionKey = null)
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
+        public virtual async Task<List<TProjection>> ProjectManyAsync<TDocument, TProjection, TKey>(
+            Expression<Func<TDocument, bool>> filter, 
+            Expression<Func<TDocument, TProjection>> projection, 
+            string partitionKey = null, CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>
             where TProjection : class
         {
-            return await MongoDbReader.ProjectManyAsync<TDocument, TProjection, TKey>(filter, projection, partitionKey);
+            return await MongoDbReader.ProjectManyAsync<TDocument, TProjection, TKey>(filter, projection, partitionKey, cancellationToken);
         }
 
         /// <summary>
@@ -567,12 +597,14 @@ namespace MongoDbGenericRepository
         /// <param name="skipNumber">The number of documents you want to skip. Default value is 0.</param>
         /// <param name="takeNumber">The number of documents you want to take. Default value is 50.</param>
         /// <param name="partitionKey">An optional partition key.</param>
+        /// <param name="cancellationToken">An optional cancellation Token.</param>
         public virtual async Task<List<TDocument>> GetSortedPaginatedAsync<TDocument, TKey>(
             Expression<Func<TDocument, bool>> filter,
             SortDefinition<TDocument> sortDefinition,
             int skipNumber = 0,
             int takeNumber = 50,
-            string partitionKey = null)
+            string partitionKey = null,
+            CancellationToken cancellationToken = default)
             where TDocument : IDocument<TKey>
             where TKey : IEquatable<TKey>
         {
@@ -581,7 +613,7 @@ namespace MongoDbGenericRepository
                                     .Sort(sortDefinition)
                                     .Skip(skipNumber)
                                     .Limit(takeNumber)
-                                    .ToListAsync();
+                                    .ToListAsync(cancellationToken);
         }
 
         #endregion Pagination