From 41ee31e0c5d75bdf702141cb768ad5c14b93e89b Mon Sep 17 00:00:00 2001
From: Xander Endre <45239432+ShadyAlexCodes@users.noreply.github.com>
Date: Mon, 22 May 2023 21:32:34 -0600
Subject: [PATCH] Update index.ts

Windows path names are not being converted correctly. This modified function will take an OpenAPI path, replace all '{param}' style parameters with ':param' style (as used by Express), and also replace all backslashes (\) with forward slashes (/), making it compatible with all operating systems.
---
 packages/express-openapi/index.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/express-openapi/index.ts b/packages/express-openapi/index.ts
index 635a9295..638db369 100644
--- a/packages/express-openapi/index.ts
+++ b/packages/express-openapi/index.ts
@@ -252,7 +252,8 @@ function optionallyAddQueryNormalizationMiddleware(
 }
 
 function toExpressParams(part) {
-  return part.replace(/\{([^}]+)}/g, ':$1');
+  // Replace '{param}' with ':param' and replace any '\\' with '/'
+  return part.replace(/\{([^}]+)}/g, ':$1').replace(/\\/g, '/');
 }
 
 function toPromiseCompatibleMiddleware(fn) {