fix(aws-serverless): Only auto-patch handler in CJS when loading awslambda-auto
#12392
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The
awslambda-auto.js
file can be used to automatically init the AWS Serverless SDK by only setting environment variables. This file is currently only exposed for CJS output. In a future PR, I'd like to also expose it in ESM so that users don't have to create their owninstrumentation.ts
file for lambda functions.To make this file compatible with ESM though, we can only conditionally try to auto patch the lambda function handler as our auto patching method relies on
require
ing users' lambda function handlers. So this PR guards thetryPatcHandler
call by checking for the availability ofrequire
(which is undefined in ESM).