POST should return some additional information

Author: thefringeninja

src/SqlStreamStore.HAL.Tests/StreamAppendTests.cs

@@ -63,7 +63,7 @@ public static IEnumerable<object[]> AppendCases()
                 {
                     body,
                     ExpectedVersion.Any,
-                    HttpStatusCode.OK,
+                    HttpStatusCode.Created,
                     messageId,
                     jsonData,
                     jsonMetadata
@@ -72,7 +72,7 @@ public static IEnumerable<object[]> AppendCases()
                 {
                     body,
                     default(int?),
-                    HttpStatusCode.OK,
+                    HttpStatusCode.Created,
                     messageId,
                     jsonData,
                     jsonMetadata

src/SqlStreamStore.HAL/ReadStreamMiddleware.cs

@@ -31,7 +31,6 @@ public static MidFunc UseStreamStore(IStreamStore streamStore)
             };
         }
 
-
         private static bool IsStream(IOwinContext context)
             => context.IsGetOrHead() && context.Request.Path.IsStream();
 

src/SqlStreamStore.HAL/StreamResource.cs

@@ -28,8 +28,10 @@ public async Task<Response> AppendMessages(
             var result = await operation.Invoke(_streamStore, cancellationToken);
 
             var response = new Response(
-                new HALResponse(new object()),
-                options.ExpectedVersion == ExpectedVersion.NoStream
+                new HALResponse(result)
+                    .AddLinks(StreamLinks.Self(options))
+                    .AddLinks(StreamLinks.Feed(options)),
+                result.CurrentVersion == 0
                     ? 201
                     : 200);
             if(options.ExpectedVersion == ExpectedVersion.NoStream)
@@ -212,12 +214,20 @@ private static class StreamLinks
                 Relations.Self,
                 options.Self);
 
+            public static Link Self(AppendStreamOptions options) => new Link(
+                Relations.Self,
+                $"{options.StreamId}");
+
             public static Link Feed(ReadStreamPage page) => new Link(Relations.Feed, Last(page).Href);
 
             public static Link Feed(ReadStreamMessageOptions options) => new Link(
                 Relations.Feed,
                 LinkFormatter.FormatBackwardLink(options.StreamId, 20, StreamVersion.End));
 
+            public static Link Feed(AppendStreamOptions options) => new Link(
+                Relations.Feed,
+                LinkFormatter.FormatBackwardLink(options.StreamId, 20, StreamVersion.End));
+
             public static IEnumerable<Link> Navigation(ReadStreamPage page, string self)
             {
                 var first = First(page);