diff --git a/makefile.shade b/makefile.shade
new file mode 100644
index 0000000000..219d33588a
--- /dev/null
+++ b/makefile.shade
@@ -0,0 +1,21 @@
+var VERSION='0.1'
+var FULL_VERSION='0.1'
+var AUTHORS='Microsoft'
+
+use-standard-lifecycle
+k-standard-goals
+
+default TYPESCRIPT_PROJECT_GLOB = "src/*/tsconfig.json"
+
+var nodeDirectory = '${Path.Combine(Directory.GetCurrentDirectory(), "bin", "nodejs")}'
+var nodeBin = '${ Path.Combine(nodeDirectory, "node_modules", ".bin") }'
+var localTsc = '${ Path.Combine(nodeBin, "tsc") }'
+var localTscExists = '${ File.Exists(localTsc) }'
+
+#install-tsc target='initialize'
+  var installCommand = 'install ${E("KOREBUILD_NPM_INSTALL_OPTIONS")} --prefix "${nodeDirectory}" typescript'
+  npm npmCommand="${installCommand}" if="!localTscExists"
+  @{
+    E("PATH", $"{nodeBin}{Path.PathSeparator}{E("PATH")}");
+    Console.WriteLine("PATH:" + E("PATH"));
+  }
\ No newline at end of file
diff --git a/src/Microsoft.AspNetCore.SignalR.Client.TS/EventSource.d.ts b/src/Microsoft.AspNetCore.SignalR.Client.TS/EventSource.d.ts
new file mode 100644
index 0000000000..4ffc591208
--- /dev/null
+++ b/src/Microsoft.AspNetCore.SignalR.Client.TS/EventSource.d.ts
@@ -0,0 +1,25 @@
+interface EventSourceOptions {
+    withcredentials: boolean
+}
+
+declare class EventSource extends EventTarget {
+    constructor(url: string);
+    constructor(url: string, configuration: EventSourceOptions);
+
+    readonly CLOSED: number;
+    readonly CONNECTING: number;
+    readonly OPEN: number;
+
+    close();
+
+    onerror: (this: this, ev: ErrorEvent) => any;
+    onmessage: (this: this, ev: MessageEvent) => any;
+    onopen: (this: this, ev: Event) => any;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "open", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+
+    readonly readyState: number;
+    readonly url: string;
+}
\ No newline at end of file