diff --git a/falcor-router/falcor-router-tests.ts b/falcor-router/falcor-router-tests.ts
index 5f5bdca0e4..7358ab2e02 100644
--- a/falcor-router/falcor-router-tests.ts
+++ b/falcor-router/falcor-router-tests.ts
@@ -2,6 +2,7 @@
 
 import falcor = require('falcor');
 import Router = require('falcor-router');
+import falcorJsonGraph = require('falcor-json-graph');
 
 new Router([]);
 new Router([], {});
@@ -100,3 +101,76 @@ new Router([{
     }
 }]);
 
+new Router([{
+    route: 'todos.new',
+    call(callpath, args) {
+      return {path: 'json.todosById.1234.name', value: 'Buy cheese'};
+    }
+}]);
+
+new Router([{
+    route: 'todos.new',
+    call(callpath, args) {
+      return falcorJsonGraph.pathInvalidation('json.todos.length');
+    }
+}]);
+
+new Router([{
+    route: 'todos.new',
+    call(callpath, args) {
+      return [
+        falcorJsonGraph.pathInvalidation('json.todos.length'),
+        {path: 'json.todosById.1234.name', value: 'Buy cheese'}
+      ]
+    }
+}]);
+
+new Router([{
+    route: 'todos.new',
+    call(callpath, args) {
+      return new Promise((resolve, reject): void => {
+        resolve([
+          falcorJsonGraph.pathInvalidation('json.todos.length'),
+          {path: 'json.todosById.1234.name', value: 'Buy cheese'}
+        ]);
+      });
+    }
+}]);
+
+new Router([{
+    route: 'todos.new',
+    call(callpath, args) {
+      return {
+          paths: [['json', 'todosById', '1234', 'name']],
+          jsonGraph: {
+              json: {
+                  todosById: {
+                      1234: {
+                          name: 'Buy cheese'
+                      }
+                  }
+              }
+          }
+      };
+    }
+}]);
+
+new Router([{
+    route: 'todos.new',
+    call(callpath, args) {
+      return new Promise((resolve, reject): void => {
+          resolve({
+              paths: [['json', 'todosById', '1234', 'name']],
+              jsonGraph: {
+                  json: {
+                      todosById: {
+                          1234: {
+                              name: 'Buy cheese'
+                          }
+                      }
+                  }
+              }
+          });
+      });
+    }
+}]);
diff --git a/falcor-router/index.d.ts b/falcor-router/index.d.ts
index 659f45767f..daef26f379 100644
--- a/falcor-router/index.d.ts
+++ b/falcor-router/index.d.ts
@@ -1,6 +1,6 @@
 // Type definitions for falcor-router 0.4.0
 // Project: https://github.com/Netflix/falcor-router
-// Definitions by: Quramy <https://github.com/Quramy/>
+// Definitions by: Quramy <https://github.com/Quramy/>, cdhgee <https://github.com/cdhgee/>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
 
 /// <reference types="falcor" />
@@ -34,7 +34,7 @@ declare namespace FalcorRouter {
     type RoutePathSet = FalcorJsonGraph.PathSet;
 
     interface CallRoute extends Route {
-        call(callPath: RoutePathSet, args: Array<any>): RouteResult | Promise<RouteResult>;
+        call(callPath: RoutePathSet, args: Array<any>): CallRouteResult | Promise<CallRouteResult>;
     }
 
     interface GetRoute extends Route {
@@ -47,6 +47,7 @@ declare namespace FalcorRouter {
 
     type RouteDefinition = GetRoute | SetRoute | CallRoute;
     type RouteResult = FalcorJsonGraph.PathValue | Array<FalcorJsonGraph.PathValue> | FalcorJsonGraph.JSONEnvelope<any>;
+    type CallRouteResult = FalcorJsonGraph.PathValue | FalcorJsonGraph.InvalidPath | Array<FalcorJsonGraph.PathValue | FalcorJsonGraph.InvalidPath> | FalcorJsonGraph.JSONGraphEnvelope;
 
     interface RouterOptions {
         debug?: boolean;