Generate AI images with Gemini and upload them to WordPress (sub-workflow)

🖼️ Generate AI Image with Gemini and Upload to WordPress

Sub-workflow — Called by a parent workflow to generate a photorealistic AI image from a text prompt and upload it directly to the WordPress Media Library.

How it works

1. Receives a query string field via the Execute Workflow Trigger (passthrough mode).
2. Sends the query to Google Gemini to generate a professional, photorealistic image.
3. Uploads the resulting binary image to your WordPress Media Library via the WP REST API.
4. Returns url, media_id, and alt to the calling parent workflow.

Setup

1. Connect your Google Gemini (PaLM) API credential to the Gemini — Generate Image node.
2. Connect your WordPress API credential to the WP — Upload Image to Media Library node.
3. Update the WordPress URL in that node to point to your site: https://your-site.com/wp-json/wp/v2/media.
4. Call this workflow from a parent workflow, passing a JSON field named query.

Customization

• Change the Gemini model in Gemini — Generate Image to adjust image quality or style.
• Edit the prompt prefix in the same node to change the default photorealistic tone.
• The filename in the Content-Disposition header uses a timestamp — adjust as needed.

⚠️ Community Node Notice: This workflow uses @n8n/n8n-nodes-langchain.googleGemini, a LangChain community node. It requires a self-hosted n8n instance with the LangChain add-on installed.