Add @params decorator options

Author: MichalLytek

src/decorator/Params.ts

@@ -1,19 +1,22 @@
+import {ParamOptions} from "../decorator-options/ParamOptions";
 import {getMetadataArgsStorage} from "../index";
 
 /**
  * Injects all request's route parameters to the controller action parameter.
  * Must be applied on a controller action parameter.
  */
-export function Params(): Function {
+export function Params(options?: ParamOptions): Function {
     return function (object: Object, methodName: string, index: number) {
         getMetadataArgsStorage().params.push({
             type: "params",
             object: object,
             method: methodName,
             index: index,
-            parse: false, // it does not make sense for Param to be parsed
-            required: false,
-            classTransform: undefined
+            parse: options ? options.parse : false,
+            required: options ? options.required : undefined,
+            classTransform: options ? options.transform : undefined,
+            explicitType: options ? options.type : undefined,
+            validate: options ? options.validate : undefined,
         });
     };
-}
+}