diff --git a/server/tsconfig.json b/server/tsconfig.json
index 6440104..19f6291 100644
--- a/server/tsconfig.json
+++ b/server/tsconfig.json
@@ -108,5 +108,6 @@
     "skipLibCheck": true                                 /* Skip type checking all .d.ts files. */
   },
   "include": ["./**/*.ts"],
-  "exclude": ["node_modules", "dist"]
+  "exclude": ["node_modules", "dist"],
+  "files":["types.d.ts"]
 }
diff --git a/server/types.d.ts b/server/types.d.ts
new file mode 100644
index 0000000..8b2cdbc
--- /dev/null
+++ b/server/types.d.ts
@@ -0,0 +1,10 @@
+// Authentication middleware has user property added to the request object. 
+// https://stackoverflow.com/a/62631740/1168342
+declare namespace Express {
+    export interface Request {
+        user: any;
+    }
+    export interface Response {
+        user: any;
+    }
+  }