reducing config verbosity

src/Microsoft.Identity.Abstractions/ManagedIdentity/ManagedIdentityDescription.cs

@@ -1,7 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Text;
+using System.ComponentModel;
 
 namespace Microsoft.Identity.Abstractions
 {
@@ -11,24 +8,18 @@ namespace Microsoft.Identity.Abstractions
     public class ManagedIdentityDescription
     {
         /// <summary>
-        /// Gets or sets the source of the managed identity as defined in <see cref="ManagedIdentitySource"/>.
-        /// Defaults to <see cref="ManagedIdentitySource.SystemAssigned"/> if not set.
+        /// Gets or sets the type of managed identity (and if applicable the unique id) as defined in
+        /// <see cref="ManagedIdentityType"/>.Defaults to <see cref="ManagedIdentityType.SystemAssigned"/> if not set.
         /// </summary>
-        [DefaultValue(ManagedIdentitySource.SystemAssigned)]
-        public ManagedIdentitySource Source { get; set; }
+        [DefaultValue(ManagedIdentityType.SystemAssigned)]
+        public ManagedIdentityType IdType { get; set; }
 
-        /// <summary>
-        /// Gets or sets the type of unique id to expect in the <see cref="UniqueIdValue"/> field. Only used when
-        /// <see cref="Source"/> is set to <see cref="ManagedIdentitySource.UserAssigned"/>.
-        /// </summary>
-        public ManagedIdentityUniqueIdType? UniqueIdType { get; set; }
 
         /// <summary>
-        /// Gets or sets the value of the unique id correlated to the <see cref="UniqueIdType"/> field for the
-        /// managed identity resource being described. Only used when <see cref="Source"/> is set to
-        /// <see cref="ManagedIdentitySource.UserAssigned"/>.
+        /// Gets or sets the value of the unique id correlated to the <see cref="IdType"/> field for the
+        /// managed identity resource being described. Only used when <see cref="IdType"/> is set to a user-assigned option.
         /// </summary>
-        public string? UniqueIdValue { get; set; }
+        public string? IdValue { get; set; }
 
         /// <summary>
         /// Ensures a clone of this object will not have the same reference.
@@ -38,9 +29,8 @@ public ManagedIdentityDescription Clone()
         {
             return new ManagedIdentityDescription
             {
-                Source = this.Source,
-                UniqueIdType = this.UniqueIdType,
-                UniqueIdValue = this.UniqueIdValue
+                IdType = this.IdType,
+                IdValue = this.IdValue
             };
         }
 
@@ -57,9 +47,8 @@ public override bool Equals(object obj)
             }
 
             ManagedIdentityDescription other = (ManagedIdentityDescription)obj;
-            return Source == other.Source &&
-                UniqueIdType == other.UniqueIdType &&
-                UniqueIdValue == other.UniqueIdValue;
+            return IdType == other.IdType &&
+                IdValue == other.IdValue;
         }
 
         /// <summary>
@@ -68,7 +57,7 @@ public override bool Equals(object obj)
         /// <returns>A 32-bit signed integer hash code.</returns>
         public override int GetHashCode()
         {
-            return new { Source, UniqueIdType, UniqueIdValue }.GetHashCode();
+            return new { IdType, IdValue }.GetHashCode();
         }
     }
 }

src/Microsoft.Identity.Abstractions/ManagedIdentity/ManagedIdentityUniqueIdType.cs → src/Microsoft.Identity.Abstractions/ManagedIdentity/ManagedIdentityType.cs

@@ -5,24 +5,29 @@
 namespace Microsoft.Identity.Abstractions
 {
     /// <summary>
-    /// 
+    /// Used by 
     /// </summary>
-    public enum ManagedIdentityUniqueIdType
+    public enum ManagedIdentityType
 
     {
+        /// <summary>
+        /// The default value, indicating that the managed identity will be the one assigned to the application.
+        /// </summary>
+        SystemAssigned = 0,
+
         /// <summary>
         /// The Azure resource client Id of a user-assigned managed identity.
         /// </summary>
-        ClientId = 0,
+        UserAssignedClientId = 1,
 
         /// <summary>
         /// The Azure resource object Id of a user-assigned managed identity.
         /// </summary>
-        ObjectId = 1,
+        UserAssignedObjectId = 2,
 
         /// <summary>
         /// The host resource Id of a user-assigned managed identity.
         /// </summary>
-        HostResourceId = 2
+        UserAssignedHostResourceId = 3
     }
 }

src/Microsoft.Identity.Abstractions/TokenAcquisition/AcquireTokenOptions.cs

@@ -95,13 +95,11 @@ public AcquireTokenOptions(AcquireTokenOptions other)
         /// When <see cref="ManagedIdentity"/> is set, the application uses a managed identity instead of client credentials to
         /// acquire an app token.<br/><br/>
         /// 
-        /// The source of a managed identity is defined by the <see cref="ManagedIdentityDescription.Source"/>
-        /// field, when using a <see cref="ManagedIdentitySource.SystemAssigned"/> identity, this is the only field that needs to
-        /// be set. <br/><br/>
+        /// The type of a managed identity is defined by the <see cref="ManagedIdentityDescription.IdType"/> field, when using a
+        /// <see cref="ManagedIdentityType.SystemAssigned"/> identity, this is the only field that needs to be set.<br/><br/>
         /// 
-        /// To use a <see cref="ManagedIdentitySource.UserAssigned"/> identity as the source, the
-        /// <see cref="ManagedIdentityDescription.UniqueIdType"/> and <see cref="ManagedIdentityDescription.UniqueIdValue"/>
-        /// fields must also be set. <br/><br/>
+        /// To use a user-assigned identity, select the <see cref="ManagedIdentityType"/> that corresponds to the
+        /// <see cref="ManagedIdentityDescription.IdValue"/> you plan to use for authentication.<br/><br/>
         /// 
         /// Using either form of managed identity requires the application to be deployed on Azure and
         /// the managed identity to be configured. For more details, check the
@@ -124,8 +122,8 @@ public AcquireTokenOptions(AcquireTokenOptions other)
         /// ]]></format>
         /// </example>
         /// <remarks>
-        /// If the <see cref="ManagedIdentity"/> field is set with no further details provided, the application will default to using the
-        /// system-assigned managed identity.
+        /// If the <see cref="ManagedIdentity"/> field is set with no further details provided, the application will default to
+        /// using the system-assigned managed identity.
         /// </remarks>
         public ManagedIdentityDescription? ManagedIdentity { get; set; }
 

test/Microsoft.Identity.Abstractions.Tests/AquireTokenOptionsTests.cs

@@ -15,7 +15,7 @@ public void ManagedIdentitySystemAssigned()
             {
                 "AquireTokenOptions": {
                     "ManagedIdentity": {
-                        "Source": "SystemAssigned"
+                        "IdType": "SystemAssigned"
                     }
                 }
             }
@@ -25,7 +25,7 @@ public void ManagedIdentitySystemAssigned()
             // <managedidentity_csharp>
             ManagedIdentityDescription managedIdentityDescription = new ManagedIdentityDescription
             {
-                Source = ManagedIdentitySource.SystemAssigned
+                IdType = ManagedIdentityType.SystemAssigned
             };
 
             AcquireTokenOptions acquireTokenOptions = new AcquireTokenOptions
@@ -34,9 +34,8 @@ public void ManagedIdentitySystemAssigned()
             };
             // </managedidentitysystem_csharp>
 
-            Assert.Equal(ManagedIdentitySource.SystemAssigned, acquireTokenOptions.ManagedIdentity.Source);
-            Assert.Null(acquireTokenOptions.ManagedIdentity.UniqueIdType);
-            Assert.Null(acquireTokenOptions.ManagedIdentity.UniqueIdValue);
+            Assert.Equal(ManagedIdentityType.SystemAssigned, acquireTokenOptions.ManagedIdentity.IdType);
+            Assert.Null(acquireTokenOptions.ManagedIdentity.IdValue);
         }
 
         [Fact]
@@ -50,9 +49,8 @@ public void ManagedIdentityUserAssigned()
             {
                 "AquireTokenOptions": {
                     "ManagedIdentity": {
-                        "Source": "UserAssigned"
-                        "UniqueIdType": "ClientId"
-                        "UniqueIdValue": "[InsertRelevantValueForTheManagedIdentityResource]"
+                        "IdType": "UserAssignedClientId"
+                        "IdValue": "[InsertRelevantValueForTheManagedIdentityResource]"
                     }
                 }
             }
@@ -62,9 +60,8 @@ public void ManagedIdentityUserAssigned()
             // <managedidentityuser_csharp>
             ManagedIdentityDescription managedIdentityDescription = new ManagedIdentityDescription
             {
-                Source = ManagedIdentitySource.UserAssigned,
-                UniqueIdType = ManagedIdentityUniqueIdType.ClientId,
-                UniqueIdValue = "[InsertRelevantValueForTheManagedIdentityResource]"
+                IdType = ManagedIdentityType.UserAssignedClientId,
+                IdValue = "[InsertRelevantValueForTheManagedIdentityResource]"
             };
 
             AcquireTokenOptions acquireTokenOptions = new AcquireTokenOptions
@@ -73,9 +70,8 @@ public void ManagedIdentityUserAssigned()
             };
             // </managedidentityuser_csharp>
 
-            Assert.Equal(ManagedIdentitySource.UserAssigned, acquireTokenOptions.ManagedIdentity.Source);
-            Assert.Equal(ManagedIdentityUniqueIdType.ClientId, acquireTokenOptions.ManagedIdentity.UniqueIdType);
-            Assert.Equal(managedIdentityDescription.UniqueIdValue, acquireTokenOptions.ManagedIdentity.UniqueIdValue);
+            Assert.Equal(ManagedIdentityType.UserAssignedClientId, acquireTokenOptions.ManagedIdentity.IdType);
+            Assert.Equal(managedIdentityDescription.IdValue, acquireTokenOptions.ManagedIdentity.IdValue);
         }
     }
 }

test/Microsoft.Identity.Abstractions.Tests/ManagedIdentityDescriptionTests.cs

@@ -5,7 +5,7 @@ namespace Microsoft.Identity.Abstractions.Tests
     public class ManagedIdentityDescriptionTests
     {
         /// <summary>
-        /// If no field is set for <see cref="ManagedIdentityDescription"/> the <see cref="ManagedIdentityDescription.Source"/>
+        /// If no field is set for <see cref="ManagedIdentityDescription"/> the <see cref="ManagedIdentityDescription.IdType"/>
         /// field needs to default to <see cref="ManagedIdentitySource.SystemAssigned"/> as other Microsoft.Identity libraries
         /// will depend on this.
         /// </summary>
@@ -16,9 +16,8 @@ public void ManagedIdentity_NoDescriptionFieldsSet()
             ManagedIdentityDescription description = new();
 
             // Assert
-            Assert.Equal(ManagedIdentitySource.SystemAssigned, description.Source);
-            Assert.Null(description.UniqueIdType);
-            Assert.Null(description.UniqueIdValue);
+            Assert.Equal(ManagedIdentityType.SystemAssigned, description.IdType);
+            Assert.Null(description.IdValue);
         }
     }
 }