diff --git a/src/Reveal.Sdk.Dom.Tests/Dashboards/TestRest.rdash b/src/Reveal.Sdk.Dom.Tests/Dashboards/TestRest.rdash
new file mode 100644
index 00000000..1f6d7105
Binary files /dev/null and b/src/Reveal.Sdk.Dom.Tests/Dashboards/TestRest.rdash differ
diff --git a/src/Reveal.Sdk.Dom.Tests/Data/DataSourceItems/RestDataSourceItemFixture.cs b/src/Reveal.Sdk.Dom.Tests/Data/DataSourceItems/RestDataSourceItemFixture.cs
index 012fd482..d1061f4b 100644
--- a/src/Reveal.Sdk.Dom.Tests/Data/DataSourceItems/RestDataSourceItemFixture.cs
+++ b/src/Reveal.Sdk.Dom.Tests/Data/DataSourceItems/RestDataSourceItemFixture.cs
@@ -1,10 +1,14 @@
-using Reveal.Sdk.Dom.Core.Constants;
+using Newtonsoft.Json.Linq;
+using Reveal.Sdk.Dom.Core.Constants;
 using Reveal.Sdk.Dom.Core.Extensions;
+using Reveal.Sdk.Dom.Core.Serialization;
 using Reveal.Sdk.Dom.Core.Utilities;
 using Reveal.Sdk.Dom.Data;
 using Reveal.Sdk.Dom.Visualizations;
+using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using Xunit;
 
@@ -404,5 +408,21 @@ public void UseCsv_Should_Add_TwoDataSources()
             Assert.Equal(DataSourceIds.CSV, document.DataSources[0].Id);
             Assert.Equal(DataSourceProvider.CSV, document.DataSources[0].Provider);
         }
+
+        [Fact]
+        public void RDashDocument_HasCorrectDataSourceItem_WhenLoadFromFile()
+        {
+            // Arrange
+            var filePath = Path.Combine(Environment.CurrentDirectory, "Dashboards", "TestRest.rdash");
+
+            // Act
+            var document = RdashDocument.Load(filePath);
+            var dataSource = document.DataSources.LastOrDefault();
+            var dataSourceItem = document.Visualizations.LastOrDefault().DataDefinition.DataSourceItem;
+
+            // Assert
+            Assert.Equal(DataSourceProvider.REST, dataSource.Provider);
+            Assert.NotNull(dataSourceItem.Properties.GetValue<bool>("ServerAggregation"));
+        }
     }
 }
diff --git a/src/Reveal.Sdk.Dom.Tests/Data/DataSources/RestDataSourceFixture.cs b/src/Reveal.Sdk.Dom.Tests/Data/DataSources/RestDataSourceFixture.cs
index b4476405..76f7de40 100644
--- a/src/Reveal.Sdk.Dom.Tests/Data/DataSources/RestDataSourceFixture.cs
+++ b/src/Reveal.Sdk.Dom.Tests/Data/DataSources/RestDataSourceFixture.cs
@@ -1,7 +1,12 @@
+using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
+using Newtonsoft.Json.Linq;
 using Reveal.Sdk.Dom.Core.Extensions;
+using Reveal.Sdk.Dom.Core.Serialization;
 using Reveal.Sdk.Dom.Data;
+using Reveal.Sdk.Dom.Visualizations;
 using Xunit;
 
 namespace Reveal.Sdk.Dom.Tests.Data.DataSources
@@ -104,5 +109,70 @@ public void Method_SetsAndGetsValue_WithDifferentInputs(string method)
             Assert.Equal(method, dataSource.Method);
             Assert.Equal(method, dataSource.Properties.GetValue<string>("Method"));
         }
+
+        [Fact]
+        public void RDashDocument_HasCorrectDataSource_WhenLoadFromFile()
+        {
+            // Arrange
+            var filePath = Path.Combine(Environment.CurrentDirectory, "Dashboards", "TestRest.rdash");
+
+            // Act
+            var document = RdashDocument.Load(filePath);
+            var dataSource = document.DataSources.LastOrDefault();
+
+            // Assert
+            Assert.Equal(DataSourceProvider.REST, dataSource.Provider);
+            Assert.NotNull(dataSource.Properties.GetValue<string>("Url"));
+            Assert.NotNull(dataSource.Properties.GetValue<string>("_rpUseAnonymousAuthentication"));
+            Assert.NotNull(dataSource.Properties.GetValue<string>("_rpUsePreemptiveAuthentication"));
+        }
+
+        [Fact]
+        public void ToJsonString_CreatesFormattedJson_ForRestDataSource()
+        {
+            // Arrange
+            var expectedJson = @"
+            {
+              ""_type"": ""DataSourceType"",
+              ""Id"": ""Rest"",
+              ""Provider"": ""REST"",
+              ""Description"": ""Rest DS"",
+              ""Subtitle"": ""Excel2Json"",
+              ""Properties"": {}
+            }";
+
+            var dataSource = new RestDataSource()
+            {
+                Id = "Rest",
+                Title = "Rest DS",
+                DefaultRefreshRate = "120",
+                Url = "https://excel2json.io/api/share/6e0f06b3-72d3-4fec-7984-08da43f56bb9",
+                Subtitle = "Excel2Json"
+            };
+
+            var dataSourceItems = new RestDataSourceItem("DB Test", dataSource)
+            {
+                Id = "RestItem",
+                Title = "Rest DS Item",
+                Fields = new List<IField>
+                {
+                    new TextField("_id"),
+                    new TextField("name"),
+                }
+            };
+
+            var document = new RdashDocument("My Dashboard");
+            document.Visualizations.Add(new GridVisualization("Test List", dataSourceItems).SetColumns("name"));
+
+            // Act
+            RdashSerializer.SerializeObject(document);
+            var json = document.ToJsonString();
+            var jObject = JObject.Parse(json);
+            var actualJObject = jObject["DataSources"].LastOrDefault();
+            var expectedJObject = JObject.Parse(expectedJson);
+
+            // Assert
+            Assert.Equal(expectedJObject, actualJObject);
+        }
     }
 }
\ No newline at end of file
diff --git a/src/Reveal.Sdk.Dom.Tests/Reveal.Sdk.Dom.Tests.csproj b/src/Reveal.Sdk.Dom.Tests/Reveal.Sdk.Dom.Tests.csproj
index f3313f39..fe1efcb3 100644
--- a/src/Reveal.Sdk.Dom.Tests/Reveal.Sdk.Dom.Tests.csproj
+++ b/src/Reveal.Sdk.Dom.Tests/Reveal.Sdk.Dom.Tests.csproj
@@ -36,10 +36,9 @@
     <None Update="Dashboards\Sales.rdash">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
-  </ItemGroup>
-
-  <ItemGroup>
-    <Folder Include="Dashboards\" />
+    <None Update="Dashboards\TestRest.rdash">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
 
   <ItemGroup>