Problems uploading an image

[jrumol]

Hello.

Thanks for your great work. I am using Postiz on my local machine and integrated with n8n. I am able to upload a file and to publish to my Facebook pages. However, for a reason that I dont know, the images that are uploaded to Postiz doesnt preview, neither appear in Facebook.

Could you please help with that?

[nevo-david]

The local images are hosted publicly? maybe facebook can't reach them

[jrumol]

I use a cloudfare tunnel with a registered domain. The link that I get from the n8n community node is https://postiz.mydomain.com/uploads/2025/07/15/f3106317f72e964915338bb18d77a10b4f.png

If I upload the image manually with the postiz frontend then it uploads ok. And if I publish the post with the postiz frontend it works correctly. However, with the community node for n8n I can not manage to publish the posts. The node says that the publish was successfully, actually I can see after that the post has been added to the postiz calendar... but the image doesnt appear and the post is not published.

And if I publish the post from the n8n community node without image... then it works ok and publishes to facebook.

[nevo-david]

Do you use the n8n upload node?

[jrumol]

Yes I use the n8n community node with the option of upload file and the following one is the "publish post".

If I try to publish the post without the image... then it works perfectly.

[nevo-david]

Can you open the post in the Postiz client, intercept the GET request, and post the payload?

[jrumol]

Can you open the post in the Postiz client, intercept the GET request, and post the payload?

Sorry... I am not an expert in this and I dont understand the concept of "intercept the GET request and post the payload".

However, I think I have found more things:

- If I use an http get node to download a media file and then another http post node to upload the file, it works ok and uploads the media file ok.

• If I use an http get node to download a media file and then the postiz community node to upload the file, it doenst work.
• If I use the node Read/write from the computer to read a media file and then upload to postiz with an http post node or the postiz community node, it doesn't work.