From 771bc1599d4beb8120b2644c4492630ed7b21f38 Mon Sep 17 00:00:00 2001
From: Damian Glowala <damian.glowala.rebkow@gmail.com>
Date: Wed, 8 Nov 2023 19:53:22 +0100
Subject: [PATCH] feat: add `getValidatedRouterParams` util

---
 README.md            |  2 ++
 src/types.ts         |  5 ++---
 src/utils/request.ts | 10 ++++++++++
 3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 86fb1c07..cbaa8809 100644
--- a/README.md
+++ b/README.md
@@ -215,6 +215,8 @@ H3 has a concept of composable utilities that accept `event` (from `eventHandler
 - `getQuery(event)`
 - `getValidatedQuery(event, validate)`
 - `getRouterParams(event)`
+- `getValidatedRouterParams(event, validate)`
+- `getRouterParam(event, name)`
 - `getMethod(event, default?)`
 - `isMethod(event, expected, allowHead?)`
 - `assertMethod(event, expected, allowHead?)`
diff --git a/src/types.ts b/src/types.ts
index 30531a89..1c664df3 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -51,10 +51,9 @@ export interface H3EventContext extends Record<string, any> {
 export type EventHandlerResponse<T = any> = T | Promise<T>;
 
 export interface EventHandlerRequest {
-  // TODO: Default to unknown in next major version
-  body?: any;
-
+  body?: any; // TODO: Default to unknown in next major version
   query?: QueryObject;
+  routerParams?: Record<string, string>;
 }
 
 export type InferEventInput<
diff --git a/src/utils/request.ts b/src/utils/request.ts
index f72df198..28785e8e 100644
--- a/src/utils/request.ts
+++ b/src/utils/request.ts
@@ -34,6 +34,16 @@ export function getRouterParams(
   return event.context.params || {};
 }
 
+export function getValidatedRouterParams<
+  T,
+  Event extends H3Event = H3Event,
+  _T = InferEventInput<"routerParams", Event, T>,
+>(event: Event, validate: ValidateFunction<_T>): Promise<_T> {
+  const routerParams = getRouterParams(event);
+
+  return validateData(routerParams, validate);
+}
+
 export function getRouterParam(
   event: H3Event,
   name: string,