Generate creative ADV images from references with Seedream v4 for Instagram & Facebook

This workflow automates the process of generating advertising (ADV) images from multiple reference images and publishing them directly to social media (Instagram and Facebook with Upload-Post) with Seedream v4 AI.

This workflow automates the process of generating an AI image based on a user's text prompt and up to 6 reference images. The process is triggered by a user submitting a web form.

Key Advantages

• ✅ Automated Image Creation – Generates high-quality, consistent visuals from multiple references without manual editing.
• ✅ Seamless Social Media Publishing – Automatically posts to Instagram and Facebook with minimal effort.
• ✅ SEO-Optimized Titles – Ensures your posts get better reach with AI-generated, keyword-friendly titles.
• ✅ Scalable Workflow – Can be triggered manually, on schedule, or via form submissions.
• ✅ Time-Saving – Reduces manual steps from design to publishing, enabling faster content production.
• ✅ Multi-Platform Support – Easily extendable to other platforms (TikTok, LinkedIn, etc.) with Upload-Post API.

How It Works

1. Form Trigger: A user fills out a form with a "Prompt" (text description) and a list of "Reference images" (comma-separated URLs).
2. Data Processing: The workflow converts the submitted image URL string into a proper array for the AI API.
3. AI Image Generation: The workflow sends the prompt and image URLs to the fal.ai API (specifically, the ByteDance seedream model) to generate a new, consistent image.
4. Status Polling: It periodically checks the status of the AI job until the image generation is COMPLETED.
5. Result Retrieval: Once complete, it fetches the URL of the generated image and downloads the image file itself.
6. SEO Title Generation: The original user prompt is sent to OpenAI's GPT-4o-mini model to generate an optimized, engaging social media title.
7. Cloud Backup: The generated image is uploaded to a specified Google Drive folder for storage.
8. Social Media Posting: Finally, the workflow posts the downloaded image file to both Instagram and Facebook via the Upload-Post.com API, using the AI-generated title.

Set Up Steps

To make this workflow functional, you need to configure several third-party services and their corresponding credentials within n8n.

1. Obtain fal.ai API Key:

   • Create an account at fal.ai.
   • Locate your API key in your account settings.
   • In the "Create Video" and "Get status" nodes, edit the HTTP Header Auth credentials.
   • Set the Header Name to Authorization and the Value to Key YOUR_FAL_AI_API_KEY.

2. Configure Upload-Post.com API:

   • Create an account at Upload-Post.com and get your API key.
   • Create a profile within the Upload-Post app (e.g., test1); this profile manages your social account connections.
   • In both the "Post to Instagram" and "Post to Facebook" nodes, edit the HTTP Header Auth credentials.
   • Set the Header Name to Authorization and the Value to Apikey YOUR_UPLOAD_POST_API_KEY.
   • Crucially, in the same nodes, find the user parameter in the body and replace the placeholder YOUR_USERNAME with the profile name you created (e.g., test1).

3. Configure OpenAI/OpenRouter (Optional for Title Generation):

   • The "Generate title" node uses an OpenAI-compatible API. The provided example uses OpenRouter.
   • Ensure you have valid credentials (e.g., for OpenRouter or directly for OpenAI) configured in n8n and selected in this node.

4. Configure Google Drive (Optional for Backup):

   • The "Upload Image" node requires Google OAuth credentials.
   • Set up a Google Cloud project, enable the Drive API, and create OAuth 2.0 credentials in the n8n settings.
   • Authenticate and select the desired destination folder in the node's parameters.

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