Add support to List file uploads API

Src/Notion.Client/Api/ApiEndpoints.cs

@@ -145,6 +145,7 @@ public static class FileUploadsApiUrls
             public static string Create() => "/v1/file_uploads";
             public static string Send(string fileUploadId) => $"/v1/file_uploads/{fileUploadId}/send";
             public static string Complete(string fileUploadId) => $"/v1/file_uploads/{fileUploadId}/complete";
+            public static string List => "/v1/file_uploads";
         }
     }
 }

Src/Notion.Client/Api/FileUploads/IFileUploadsClient.cs

@@ -40,5 +40,16 @@ Task<CompleteFileUploadResponse> CompleteAsync(
             CompleteFileUploadRequest completeFileUploadRequest,
             CancellationToken cancellationToken = default
         );
+
+        /// <summary>
+        /// List File Uploads for the current bot integration, sorted by most recent first.
+        /// </summary>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        Task<ListFileUploadsResponse> ListAsync(
+            ListFileUploadsRequest request,
+            CancellationToken cancellationToken = default
+        );
     }
 }

Src/Notion.Client/Api/FileUploads/List/FileUploadsClient.cs

@@ -0,0 +1,28 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Notion.Client
+{
+    public sealed partial class FileUploadsClient
+    {
+        public async Task<ListFileUploadsResponse> ListAsync(
+            ListFileUploadsRequest request,
+            System.Threading.CancellationToken cancellationToken = default)
+        {
+            IListFileUploadsQueryParameters queryParameters = request;
+
+            var queryParams = new Dictionary<string, string>
+            {
+                { "page_size", queryParameters.PageSize?.ToString() },
+                { "start_cursor", queryParameters.StartCursor },
+                { "status", queryParameters.Status }
+            };
+
+            return await _restClient.GetAsync<ListFileUploadsResponse>(
+                ApiEndpoints.FileUploadsApiUrls.List,
+                queryParams: queryParams,
+                cancellationToken: cancellationToken
+            );
+        }
+    }
+}

Src/Notion.Client/Api/FileUploads/List/Request/IListFileUploadsQueryParameters.cs

@@ -0,0 +1,22 @@
+namespace Notion.Client
+{
+    public interface IListFileUploadsQueryParameters
+    {
+        /// <summary>
+        /// Filter file uploads by specifying the status. Supported values are "pending", "uploaded", "expired", "failed".
+        /// </summary>
+        string Status { get; set; }
+
+        /// <summary>
+        /// If supplied, this endpoint will return a page of results starting after the cursor provided. 
+        /// If not supplied, this endpoint will return the first page of results.
+        /// </summary>
+        string StartCursor { get; set; }
+
+        /// <summary>
+        /// The number of items from the full list desired in the response. Maximum: 100
+        /// Default to 100
+        /// </summary>
+        int? PageSize { get; set; }
+    }
+}

Src/Notion.Client/Api/FileUploads/List/Request/ListFileUploadsRequest.cs

@@ -0,0 +1,9 @@
+namespace Notion.Client
+{
+    public class ListFileUploadsRequest : IListFileUploadsQueryParameters
+    {
+        public string Status { get; set; }
+        public string StartCursor { get; set; }
+        public int? PageSize { get; set; }
+    }
+}

Src/Notion.Client/Api/FileUploads/List/Response/ListFileUploadsResponse.cs

@@ -0,0 +1,11 @@
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace Notion.Client
+{
+    public class ListFileUploadsResponse : PaginatedList<FileObjectResponse>
+    {
+        [JsonProperty("file_uploads")]
+        public Dictionary<string, object> FileUploads { get; set; }
+    }
+}

Test/Notion.IntegrationTests/FileUploadsClientTests.cs

@@ -121,5 +121,23 @@ public async Task Verify_multi_part_file_upload_flow()
                 Assert.Equal("completed", completeResponse.Status);
             }
         }
+
+        [Fact]
+        public async Task ListAsync()
+        {
+            // Arrange
+            var request = new ListFileUploadsRequest
+            {
+                PageSize = 5
+            };
+
+            // Act
+            var response = await Client.FileUploads.ListAsync(request);
+
+            // Assert
+            Assert.NotNull(response);
+            Assert.NotNull(response.Results);
+            Assert.True(response.Results.Count <= 5);
+        }
     }
 }

Test/Notion.UnitTests/FileUploadsClientTests.cs

@@ -178,4 +178,45 @@ public async Task SendAsync_CallsRestClientPostAsync_WithCorrectParameters()
         Assert.Equal(expectedResponse.Id, response.Id);
         _restClientMock.VerifyAll();
     }
+
+    #region ListAsync Tests
+
+    [Fact]
+    public async Task ListAsync_CallsRestClientGetAsync_WithCorrectParameters()
+    {
+        // Arrange
+        var request = new ListFileUploadsRequest
+        {
+            PageSize = 10,
+            StartCursor = "cursor123",
+            Status = "completed"
+        };
+
+        _restClientMock
+            .Setup(client => client.GetAsync<ListFileUploadsResponse>(
+                It.Is<string>(url => url == ApiEndpoints.FileUploadsApiUrls.List),
+                It.IsAny<IDictionary<string, string>>(),
+                null,
+                null,
+                It.IsAny<CancellationToken>()
+            ))
+            .ReturnsAsync(new ListFileUploadsResponse
+            {
+                Results = new List<FileObjectResponse>
+                {
+                    new() { Id = "file1", Status = "completed" },
+                    new() { Id = "file2", Status = "completed" }
+                }
+            });
+
+        // Act
+        var response = await _fileUploadClient.ListAsync(request);
+
+        // Assert
+        Assert.NotNull(response);
+        Assert.Equal(2, response.Results.Count);
+        _restClientMock.VerifyAll();
+    }
+
+    #endregion ListAsync Tests
 }