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@gravityai-dev/gce-toolkit
@gravityai-dev/gce-toolkit/dist/index.js

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Readme

@gravityai-dev/gce-imagegen

Google Gemini Image Generation integration for the Gravity workflow system.

Features

🎨 Generate images using Google's Gemini AI models
🔄 Support for multiple image generation
📦 Base64 output format for easy integration
🎯 Template support for dynamic prompts
🔐 Secure credential management

Installation

npm install @gravityai-dev/gce-imagegen

Configuration

Credentials

This package requires Google Gemini API credentials:

API Key: Your Google Gemini API key

Node Configuration

Model: Select the Gemini model (gemini-2.5-flash-image-preview, gemini-2.0-flash-exp)
Image Prompt: Describe the image you want to generate (supports template syntax)
Number of Images: How many images to generate (1-10)
Output Format: base64 (embedded) or url (requires storage)
File Name Prefix: Optional prefix for generated image file names

Usage

In a Workflow

Add the "Gemini Image Gen" node to your workflow
Configure your Gemini API credentials
Set the model and prompt
Connect to downstream nodes to process the generated images

Template Syntax

Use template syntax to reference data from previous nodes:

Generate an image of {{input.subject}} in {{input.style}} style

Outputs

images: Array of generated images with base64 data and metadata
text: Optional text response from Gemini
metadata: Generation metadata including model and image count

Example

// Node configuration
{
  model: "gemini-2.5-flash-image-preview",
  prompt: "A serene mountain landscape at sunset",
  numberOfImages: 1,
  outputFormat: "base64",
  fileName: "mountain_sunset"
}

// Output
{
  images: [
    {
      data: "base64_encoded_image_data...",
      mimeType: "image/png",
      fileName: "mountain_sunset_0.png"
    }
  ],
  metadata: {
    model: "gemini-2.5-flash-image-preview",
    imageCount: 1,
    timestamp: "2025-01-15T10:30:00Z"
  }
}

License

MIT