Add implementation for Devices APIs (#12611)

Author: timtay-microsoft

sdk/iot/Azure.Iot.Hub.Service/src/API Design.md

@@ -8,6 +8,12 @@ namespace Azure.Iot.Hub.Service
     /// </summary>
     public enum IfMatchPrecondition
     {
+        /// <summary>
+        /// Perform this operation regardless of if the provided resource matches the service's representation
+        /// of the object. This will cause the HTTP request to be sent with no ifMatch header. The service will never respond with a 412 error code with this setting.
+        /// </summary>
+        Unconditional,
+
         /// <summary>
         /// Perform this operation as long as the provided resource exists in the service. This will cause the HTTP request to be sent with an ifMatch header with value "*". For create or update
         /// operations, if the resource does not exist, then the service will not execute the operation and will respond to the request with a 412 error code. For delete operations, if the resource

sdk/iot/Azure.Iot.Hub.Service/src/DevicesClient.cs

@@ -18,12 +18,18 @@ internal static class IfMatchPreconditionExtensions
         /// <returns>The ifMatch header value.</returns>
         internal static string GetIfMatchHeaderValue(IfMatchPrecondition precondition, string ETag)
         {
-            return precondition switch
+            if (precondition == IfMatchPrecondition.IfMatch)
             {
-                IfMatchPrecondition.IfMatch => $"\"{ETag}\"",
-                IfMatchPrecondition.UnconditionalIfMatch => "*",
-                _ => null,
-            };
+                return ETag;
+            }
+            else if (precondition == IfMatchPrecondition.UnconditionalIfMatch)
+            {
+                return "*";
+            }
+            else //precondition == IfMatchPrecondition.Unconditional
+            {
+                return null;
+            }
         }
     }
 }

sdk/iot/Azure.Iot.Hub.Service/src/Generated/Models/BulkRegistryOperationResult.Serialization.cs

@@ -309,13 +309,13 @@
           "200": {
             "description": "OK",
             "schema": {
-              "$ref": "#/definitions/BulkRegistryOperationResult"
+              "$ref": "#/definitions/BulkRegistryOperationResponse"
             }
           },
           "400": {
             "description": "BadRequest",
             "schema": {
-              "$ref": "#/definitions/BulkRegistryOperationResult"
+              "$ref": "#/definitions/BulkRegistryOperationResponse"
             }
           }
         }
@@ -2215,7 +2215,7 @@
         }
       }
     },
-    "BulkRegistryOperationResult": {
+    "BulkRegistryOperationResponse": {
       "description": "Encapsulates the result of a bulk registry operation.",
       "type": "object",
       "properties": {