From fe6cc1d77b380c4b0ce7be39f1676244a0d19abe Mon Sep 17 00:00:00 2001
From: Stefan Dobrev <stefan.dobrev@gmail.com>
Date: Mon, 14 Nov 2016 16:36:45 +0200
Subject: [PATCH] [express] Add Router constructor options

More info [here](http://expressjs.com/en/api.html#express.router)
---
 express/express-tests.ts |  3 +--
 express/index.d.ts       | 23 ++++++++++++++++++++++-
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/express/express-tests.ts b/express/express-tests.ts
index fdcd85801f..e643ba208b 100644
--- a/express/express-tests.ts
+++ b/express/express-tests.ts
@@ -29,8 +29,7 @@ namespace express_tests {
     res.send('hello world');
     });
 
-    const router = express.Router();
-
+    const router = express.Router({ caseSensitive: true, mergeParams: true, strict: true });
 
     const pathStr: string = 'test';
     const pathRE: RegExp = /test/;
diff --git a/express/index.d.ts b/express/index.d.ts
index b1a618b79e..7222c8d3d9 100644
--- a/express/index.d.ts
+++ b/express/index.d.ts
@@ -28,7 +28,28 @@ declare namespace e {
      */
     var static: typeof serveStatic;
 
-    export function Router(options?: any): core.Router;
+    export function Router(options?: RouterOptions): core.Router;
+
+    interface RouterOptions {
+        /**
+         * Enable case sensitivity.
+         */
+        caseSensitive?: boolean;
+
+        /**
+         * Preserve the req.params values from the parent router.
+         * If the parent and the child have conflicting param names, the child’s value take precedence.
+         *
+         * @default false
+         * @since 4.5.0
+         */
+        mergeParams?: boolean;
+
+        /**
+         * Enable strict routing.
+         */
+        strict?: boolean;
+    }
 
     interface Application extends core.Application { }
     interface CookieOptions extends core.CookieOptions { }