fixes #184

Author: Umed Khudoiberdiev

src/decorator/Interceptor.ts

@@ -8,7 +8,7 @@ export function Interceptor(options?: { priority?: number }): Function {
         getMetadataArgsStorage().interceptors.push({
             target: target,
             global: true,
-            priority: options && options.priority ? options.priority : undefined
+            priority: options && options.priority ? options.priority : 0
         });
     };
 }

src/decorator/Middleware.ts

@@ -10,7 +10,7 @@ export function Middleware(options: { type: "after"|"before", priority?: number
             target: target,
             type: options && options.type ? options.type : "before",
             global: true,
-            priority: options && options.priority !== undefined ? options.priority : undefined
+            priority: options && options.priority !== undefined ? options.priority : 0
         });
     };
 }