Gemini → Generate Image

Overview

This action allows you to generate an image using the Gemini API by providing a model choice and a prompt description. The function sends your image generation request to Gemini, retrieves the resulting image data, and saves it as a downloadable file.

Inputs

Function Stack

1. Gemini API Request
   • Submits the provided prompt to the selected image-generation model at:

https://generativelanguage.googleapis.com/v1beta/models/{model}:generateContent?key={API_KEY}

- Stores the Gemini response as `gemini_api`.

2. Precondition
   • Ensures the request was successful with response status 200.
3. Save Image
   • Extracts image data from gemini_api.response.result.candidates.content.parts.inlineData.data
   • Saves the image as image_response.png.
4. Response
   • Returns the complete Gemini API response (gemini_api.response.result).

Example Usage

Request

{
  "gemini_api_key": "AIzaSyD...",
  "model": "gemini-1.5-flash",
  "prompt": "A futuristic city skyline at sunset in vibrant colors"
}

Response

{
  "candidates": [
    {
      "content": {
        "parts": [
          { "text": "A futuristic city skyline at sunset..." },
          { "inlineData": { "mimeType": "image/png", "data": "iVBORw0KGgoAAAANSUhEUg..." } }
        ]
      }
    }
  ]
  // ... other response data
}

Notes

• The model parameter lets you choose between available Gemini image models (e.g., gemini-1.5-flash). Ensure the selected model supports image generation.
• The generated image is saved as a file (image_response.png), which you can directly use or download.
• The prompt should be clear and descriptive for best results.
• Make sure your API key has access to the relevant model and sufficient usage quota.

Troubleshooting

• PERMISSION_DENIED or INVALID_ARGUMENT: Check your API key, model name, and prompt formatting.
• No image output: If inlineData.data is empty, check your model choice and try another prompt.
• Image file corrupt or unreadable: Confirm the returned data and file creation process completed successfully.

References

• Gemini API: Image Generation
• Gemini API Documentation