From 03d285dfdc44358fa108902cc8ee89128b8dcf97 Mon Sep 17 00:00:00 2001
From: Simon Buchan <simon.buchan.nz@gmail.com>
Date: Fri, 13 Dec 2019 23:56:09 +1300
Subject: [PATCH] Revert "removes the wrong assumption that headers are alkways
 set (#40876)" (#40929)

This reverts commit 48addad317821aa29dd9ab17c18741df33b15a7b.
---
 types/aws-lambda/aws-lambda-tests.ts | 2 +-
 types/aws-lambda/index.d.ts          | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/types/aws-lambda/aws-lambda-tests.ts b/types/aws-lambda/aws-lambda-tests.ts
index b9e2a383b6..f3bd8f16d9 100644
--- a/types/aws-lambda/aws-lambda-tests.ts
+++ b/types/aws-lambda/aws-lambda-tests.ts
@@ -125,7 +125,7 @@ strOrUndefined = apiGwEvtReqCtx.routeKey;
 
 /* API Gateway Event */
 strOrNull = apiGwEvt.body;
-str = apiGwEvt.headers!['example'];
+str = apiGwEvt.headers['example'];
 str = apiGwEvt.multiValueHeaders['example'][0];
 str = apiGwEvt.httpMethod;
 bool = apiGwEvt.isBase64Encoded;
diff --git a/types/aws-lambda/index.d.ts b/types/aws-lambda/index.d.ts
index a2c6a8ba3f..4b99367956 100644
--- a/types/aws-lambda/index.d.ts
+++ b/types/aws-lambda/index.d.ts
@@ -79,7 +79,7 @@ export interface APIGatewayEventRequestContext {
 // API Gateway "event"
 export interface APIGatewayProxyEvent {
     body: string | null;
-    headers?: { [name: string]: string };
+    headers: { [name: string]: string };
     multiValueHeaders: { [name: string]: string[] };
     httpMethod: string;
     isBase64Encoded: boolean;