Send dynamic data to OpenAI image generator

Guys, is there any possible to send a string to open ai dall-e image generator?

Im trying to send and I having this issue:

So, I tried to make a manual request, and had this issue:


Anyone can help me, please?

It looks like your topic is missing some important information. Could you provide the following if applicable.

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n8n version: 1.68.0
Im running n8n in a digitalocean server, using Ubuntu 24.10 x64 with 2 GB Memory / 50 GB Disk / NYC3
Inside the server, I installed easypanel with postgress 16.6 and Redis 7.4.1 after this, I installed n8n…

Make sure the Expression is select in the JSON field.

Example workflow:

You can execute the above workflow and see the result here.