AWS S3 Module only uses first input for folder key

[Lee_S]

Describe the problem/error/question

AWS S3 Module receives 8 records. Each record contains a field with a different folder key.

Module settings: Resource = File / Operation = Get Many / Options Folder Key = expression from each record.

What is the error message (if any)?

The output I’m getting is the same six files from the first record repeated 8 times.

Please share your workflow

Share the output returned by the last node

Here’s the output of the AWS S3 node, which is more relevant:

Information on your n8n setup

• n8n version: 1.21.0
• Database (default: SQLite): Postgres
• n8n EXECUTIONS_PROCESS setting (default: own, main): queue
• Running n8n via (Docker, npm, n8n cloud, desktop app): Docker / Elastic Container
• Operating system: Alpine Linux / Docker

[MutedJam]

Hi @Lee_S, I am sorry you’re having trouble. From giving this a quick go on my own n8n instance I was unfortunately not able to reproduce this.

Can you confirm how exactly you have created the example documents on your S3 instance? Are you using actual folders or folder-like prefixes (see Understand prefixes and nested folders in Amazon S3 | AWS re:Post for the technical difference - iirc the AWS UI makes them look the same)?

Can you confirm the JSON data you’re sending to your S3 node? Thank you!

[Lee_S]

I’ve actually modified this automation several times since I posted so I can’t really dig into the diagnosis. Lets close this for now as a fluke and I’ll re-open if needed. I’m on a project where I’m doing a lot of S3 work so if it’s really a bug I’ll almost certainly encounter it again.