diff --git a/deno/types.ts b/deno/types.ts
index c99938c..c139deb 100644
--- a/deno/types.ts
+++ b/deno/types.ts
@@ -1,40 +1,57 @@
-// types.ts
-
-// FIXME: split this up into types used by app developers and types internal
-// to the framework.
-
-
-import { HttpCode, httpCodes } from "./http-codes.ts";
-import { ContentType, contentTypes } from "./content-types";
-
-
-export type Method = "get" | "post" | "put" | "patch" | "delete";
-
-
-export type DenoRequest = globalThis.Request;
-export type UserRequest = {};
-export type Request = {
-    pattern: string;
-    path: string;
-    method: Method;
-    parameters: object;
-    denoRequest: globalThis.Request;
-};
-export type ProcessedRoute = { pattern: URLPattern; method:  Method; handler: Handler };
-
-
-
-export type Response = {
-    code: HttpCode;
-    contentType: ContentType;
-    result: string;
-};
-
-export type Handler = (req: Request) => Promise<Response>;
-
-export type Route = {
-    path: string;
-    methods: Method[];
-    handler: Handler;
-    interruptable?: boolean
-};
\ No newline at end of file
+// types.ts
+
+// FIXME: split this up into types used by app developers and types internal
+// to the framework.
+
+import { z } from "zod";
+import { HttpCode, httpCodes } from "./http-codes.ts";
+import { ContentType, contentTypes } from "./content-types.ts";
+
+const methodParser = z.union([
+    z.literal("get"),
+    z.literal("post"),
+    z.literal("put"),
+    z.literal("patch"),
+    z.literal("delete"),
+]);
+
+export type Method = z.infer<typeof methodParser>;
+
+const massageMethod = (input: string): Method => {
+    const r = methodParser.parse(input.toLowerCase())
+
+    return r;
+};
+
+export type DenoRequest = globalThis.Request;
+export type DenoResponse=globalThis.Response;
+export type UserRequest = {};
+export type Request = {
+    pattern: string;
+    path: string;
+    method: Method;
+    parameters: object;
+    denoRequest: globalThis.Request;
+};
+export type ProcessedRoute = {
+    pattern: URLPattern;
+    method: Method;
+    handler: Handler;
+};
+
+export type Response = {
+    code: HttpCode;
+    contentType: ContentType;
+    result: string;
+};
+
+export type Handler = (req: Request) => Promise<Response>;
+
+export type Route = {
+    path: string;
+    methods: Method[];
+    handler: Handler;
+    interruptable?: boolean;
+};
+
+export { massageMethod };