From 07a07b30232f17812bf7d25022c4fb53b057573e Mon Sep 17 00:00:00 2001
From: Trivikram Kamat <16024985+trivikr@users.noreply.github.com>
Date: Fri, 10 Mar 2023 10:54:40 -0800
Subject: [PATCH] Skip emitting maintenance mode message on Lambda (#4365)

* Skip emitting maintenance mode message on Lambda

* Move typeof process check at the top

* Change to indexOf

* npm run add-change

* update category

* check for process being undefined
---
 ...ix-remove-maintenance-mode-message-84bcda90.json |  5 +++++
 lib/maintenance_mode_message.js                     | 13 +++++++++++--
 2 files changed, 16 insertions(+), 2 deletions(-)
 create mode 100644 .changes/next-release/bugfix-remove-maintenance-mode-message-84bcda90.json

diff --git a/.changes/next-release/bugfix-remove-maintenance-mode-message-84bcda90.json b/.changes/next-release/bugfix-remove-maintenance-mode-message-84bcda90.json
new file mode 100644
index 0000000000..2d4318bd69
--- /dev/null
+++ b/.changes/next-release/bugfix-remove-maintenance-mode-message-84bcda90.json
@@ -0,0 +1,5 @@
+{
+  "type": "bugfix",
+  "category": "maintenance mode message",
+  "description": "supress maintenance mode message in Lambda environment"
+}
\ No newline at end of file
diff --git a/lib/maintenance_mode_message.js b/lib/maintenance_mode_message.js
index 88efd18e3e..157357a641 100644
--- a/lib/maintenance_mode_message.js
+++ b/lib/maintenance_mode_message.js
@@ -14,10 +14,19 @@ module.exports = {
  * require('aws-sdk/lib/maintenance_mode_message').suppress = true;
  */
 function emitWarning() {
+  if (typeof process === 'undefined')
+    return;
+
+  // Skip maintenance mode message in Lambda environments
   if (
-    typeof process !== 'undefined' &&
-    typeof process.emitWarning === 'function'
+    typeof process.env === 'object' &&
+    typeof process.env.AWS_EXECUTION_ENV !== 'undefined' &&
+    process.env.AWS_EXECUTION_ENV.indexOf('AWS_Lambda_') === 0
   ) {
+    return;
+  }
+
+  if (typeof process.emitWarning === 'function') {
     process.emitWarning(warning, {
       type: 'NOTE'
     });