Upload media to wordpress not working with expression

Questions
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1

When I use a fixed URL for uploading pictures to WordPress, it works fine. But I need a solution, where i can upload to an URL, that is filled out via expression. See:

SCR-20230704-msoz
SCR-20230704-msoz1920×1412 103 KB

What is the error message (if any)?

SCR-20230704-nbnf
SCR-20230704-nbnf2504×2166 346 KB

5

Hi @ManyQuestions, which expression are you actually using in your HTTP Request node? Does the number of items change between the nodes in your workflow? If so, your expression might need to account for that, for example by using one of the available expressions using .first().

Which version of n8n are you using and how does your workflow look like?

6

Hi @MutedJam , thanks for the answer. I am using this expression:

SCR-20230705-lnwa-2
SCR-20230705-lnwa-2930×2152 184 KB

7

The expression is taking data from this field of a set node:

SCR-20230705-lpbk-2
SCR-20230705-lpbk-2910×360 23.6 KB

8

Yes, the number of the items changes once in the execution from 1 to 5 and it always changes from execution to execution (from 1 to X-items).

9

Yes, the number of the items changes once in the execution from 1 to 5 and it always changes from execution to execution (from 1 to X-items).

So assuming HTTP Request node in your workflow only ever returns a single n8n item (it can still have multiple objects in its json.data array, only the number of n8n items matters), you could try an expression of {{ $("HTTP Request").first().json.data[8].website }}

This would mean n8n always tries to read the first (and only) item of the HTTP Request node, even when processing the second, third, etc. item on your current node.

10

Thanks, @MutedJam. It’s looks like it’s working now.