Support string properties in CustomResource creation

sdk/dotnet/Pulumi/Resource.cs

@@ -1,3 +1,4 @@
+using Google.Protobuf.WellKnownTypes;
 using Pulumirpc;
 using System;
 using System.Collections.Generic;
@@ -27,8 +28,9 @@ namespace Pulumi
             }
 
 
+            // Figure out the parent URN. If an explicit parent was passed in, use that. Otherwise use the global root URN. In the case where that hasn't been set yet, we must be creating
+            // the ComponentResource that represents the global stack object, so pass along no parent.
             Task<string> parentUrn;
-
             if (options.Parent != null) {
                 parentUrn = options.Parent.Urn;
             } else if (Runtime.Root != null) {
@@ -44,7 +46,7 @@ namespace Pulumi
                     Name = name,
                     Custom = custom,
                     Protect = false,
-                    Object = new Google.Protobuf.WellKnownTypes.Struct(),
+                    Object = SerializeProperties(properties),
                     Parent = parentUrn.Result
                 }
             );
@@ -52,5 +54,27 @@ namespace Pulumi
             Urn = res.ResponseAsync.ContinueWith((x) => x.Result.Urn);
             return res.ResponseAsync;
         }
+
+        private Struct SerializeProperties(Dictionary<string, object> properties) {
+            if (properties == null) {
+                return new Struct();
+            }
+
+            var s = new Struct();
+
+            foreach (var kvp in properties) {
+                s.Fields.Add(kvp.Key, SerializeProperty(kvp.Value));
+            }
+
+            return s;
+        }
+
+        private Value SerializeProperty(object o) {
+            if (o.GetType() == typeof(string)) {
+                return Value.ForString((string)o);
+            }
+
+            throw new NotImplementedException($"cannot marshal object of type ${o.GetType()}");
+        }
     }
 }

sdk/dotnet/examples/main.csx

@@ -1,7 +1,10 @@
 #r "/home/matell/go/src/github.com/pulumi/pulumi/sdk/dotnet/Pulumi/bin/Debug/netstandard2.0/Pulumi.dll"
 using Pulumi;
 using System;
+using System.Collections.Generic;
 
 Config config = new Config("hello-dotnet");
-CustomResource r = new CustomResource("aws:s3/bucket:Bucket", config["name"]);
+CustomResource r = new CustomResource("aws:s3/bucket:Bucket", config["name"], new Dictionary<string, object> {
+    { "acl", "public-read" }
+});
 Console.WriteLine($"provided assigned id: {r.Id.Result}");