Merge multiple files after loop

[Rodolfo92]

Describe the problem/error/question

As the loop finishes I have up to 4 files that I want the user to download, given that I thought of using the compression to create a single .zip file that would generate an output file. The problem is that it generates 4 zips if I left the Input Binary Field(s) field as the default data. What I’m missing?

Please share your workflow

Information on your n8n setup

• n8n version: Latest
• Running n8n via (Docker, npm, n8n cloud, desktop app): Cloud
• Operating system: Mac

[darrell_tw]

Just wonder. What’s in the zip file?

Is all zip contain 4 files?

Or every zip contain only 1 file.

[Rodolfo92]

One zip file for each file

[Parintele_Damaskin]

This will create a single item with all your binaries as separate fields (e.g., data, data2, data3, etc.)
Added a code node for this, and in the compression node you have to enter the name of the fields in the input data that contain the binary files you want to compress. To compress more than one file, use a comma-separated list.

[mohamed3nan]

The no-code for this is simply just use the “Aggregate” node after the loop ends and use the expression:

{{ Object.keys($binary).join() }}

in the Compression node:

[Rodolfo92]

That worked! Thanks!