[NodeJS] Image include aws-sdk not interpreting AWS_ENDPOINT_URL

[fl0rian-p]

Hi,
The latest images published are embbedding the version 3.844.0 version of @aws-sdk (at least the following images, but I guess all images published on July 17th :

• public.ecr.aws/lambda/nodejs:20
• public.ecr.aws/lambda/nodejs:20.2025.07.17.11
• public.ecr.aws/lambda/nodejs:22.2025.07.17.11
• public.ecr.aws/lambda/nodejs:22

)

That version no longer interprets the AWS_ENDPOINT_URL env var as described here.

This causes issues as we are overriding that variable rather than specifying the endpoint property for the clients we create for our integration tests.

Would it be possible to publish images using a more recent version of the @aws-sdk?
The issue aforementioned implies 3.845.0 fixes the issue.

[kuhe]

I pulled the images and confirmed that the latest images contain the fix for the linked issue.

To check whether a certain image contains the fix run the following commands or some equivalent:

1. run the image interactively

docker run -it --entrypoint /bin/bash public.ecr.aws/lambda/nodejs:22

2. the following command should return a result

cat /var/runtime/node_modules/\@aws-sdk/node_modules/\@smithy/middleware-endpoint/dist-cjs/index.js | grep "isCustomEndpoint = true"

expected output:

      clientConfig.isCustomEndpoint = true;