How to search for multiple files with the S3 node?

[vbml]

Hi guys,

I use the “S3 node” (version 1) to search for the existence of files in an R2 storage (Cloudflare) using prefixes.

I have several items that are sent to the “S3 node” to search for files corresponding to these items. Naively, I thought that, like all other nodes, the “S3 node” would run once for each item? But apparently, that’s not what happens, and I don’t understand why…

For example, if the prefixes of my 3 item files are:

• 2025/08/25/1234.md
• 2025/08/25/1235.md
• 2025/08/25/1236.md

Then the node output displays:

[
  {
    "Key": "2025/08/25/1234.md",
    "Size": "2710",
    "LastModified": "2025-08-25T15:14:47.176Z",
    "ETag": "\"...\"",
    "StorageClass": "STANDARD"
  },
  {
    "Key": "2025/08/25/1234.md",
    "Size": "2710",
    "LastModified": "2025-08-25T15:14:47.176Z",
    "ETag": "\"...\"",
    "StorageClass": "STANDARD"
  },
  {
    "Key": "2025/08/25/1234.md",
    "Size": "2710",
    "LastModified": "2025-08-25T15:14:47.176Z",
    "ETag": "\"...\"",
    "StorageClass": "STANDARD"
  }
]

This is a problem because in the rest of the workflow, it makes me think that all three files have been found, when only the first one (2025/08/25/1234.md) exists in R2…

Am I required to use a “Loop Over Items (Split in Batches) node”? What am I missing?

Information on your n8n setup

• n8n version: Version 1.107.4
• Database (default: SQLite): postgres

[barn4k]

hello @vbml

Please, share the workflow.

You can select all nodes with ctrl+a, copy it with ctrl+c. Then past the content here after pressing button </> with ctrl+v.