From 5c17a3f00693af803fe1a3f960970f9cd76758d7 Mon Sep 17 00:00:00 2001
From: Steven Yuan <yuasteve@amazon.com>
Date: Wed, 20 Sep 2023 10:48:48 -0700
Subject: [PATCH] fix(middleware-endpoint-discovery): assert `clientName` and
 `commandName` in `context` (#5232)

---
 .../src/endpointDiscoveryMiddleware.ts                         | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/middleware-endpoint-discovery/src/endpointDiscoveryMiddleware.ts b/packages/middleware-endpoint-discovery/src/endpointDiscoveryMiddleware.ts
index 687b82eb7701..ed8146299c4c 100644
--- a/packages/middleware-endpoint-discovery/src/endpointDiscoveryMiddleware.ts
+++ b/packages/middleware-endpoint-discovery/src/endpointDiscoveryMiddleware.ts
@@ -28,7 +28,8 @@ export const endpointDiscoveryMiddleware =
 
     const { endpointDiscoveryCommandCtor } = config;
     const { isDiscoveredEndpointRequired, identifiers } = middlewareConfig;
-    const { clientName, commandName } = context;
+    const clientName = context.clientName!;
+    const commandName = context.commandName!;
     const isEndpointDiscoveryEnabled = await config.endpointDiscoveryEnabled();
     const cacheKey = await getCacheKey(commandName, config, { identifiers });