S3 Get File - Error:Assignment to constant variable

Wappler General Need Help
1

Hi,

I am trying to use the get files from S3. I am using this to get all the required files in one folder so I can then make a zip file and download it. I have it setup like this:

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image2154×492 52.4 KB

It works absolutely fine until I have 'Strip Key Path' ticked and then I get this error:

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image1172×156 22.4 KB

Am I doing something wrong? I want the files to save in /public/assets/{filename} and not into /public/assets/{filepath}.

Any help would be greatly appreciated :slight_smile:

Thanks,

2

Asked Claude about this and it come up with a solution. Think this might be a bug.

Title: s3.getFile throws TypeError: Assignment to constant variable when stripKeyPath: true

Description:

Calling the S3 "Get File" action with Strip Key Path enabled throws a server-side error instead of stripping the key path as documented:

TypeError: Assignment to constant variable.

Steps to reproduce:

  1. Add an S3 "Get File" action with stripKeyPath set to true, and a key that contains at least one folder segment (e.g. folder/subfolder/file.ext, not just a bare filename).
  2. Run the action.
  3. It throws TypeError: Assignment to constant variable instead of downloading the file with the folder path stripped.

Root cause (found it in lib/modules/s3.js, happy to be wrong if this isn't the shipped source for everyone, but it matches what I'm seeing):

js

const file = Key;
if (stripKeyPath) file = basename(file);

file is declared const, then reassigned on the very next line when stripKeyPath is true — that's the exact cause of the TypeError. Only reproduces when stripKeyPath is actually used; works fine with the default (false).

Suggested fix: change const file = Key; to let file = Key; (or introduce a second variable for the stripped value) so the reassignment is legal.

Workaround in the meantime: patched lib/modules/s3.js locally to fix it, since it's straightforward — but flagging here since it'll presumably get overwritten on the next Server Connect runtime update.