Database and Model Updates for Image Generation

To integrate image generation capabilities into your FastAPI application, you’ll need to update your database and models to store and manage image-related data. This includes adding a field to store the generated image data, along with any other relevant attributes.

Updating the Database Model

Modify the model:

Python

from sqlalchemy import Column, Integer, String, LargeBinary

class Image(Base):
tablename = “images”

id = Column(Integer, primary_key=True, index=True)
user_id = Column(Integer, ForeignKey("users.id"))
prompt = Column(String)
image_data = Column(LargeBinary)

user = relationship("User", back_populates="images")

The image_data column is used to store the generated image data as a binary blob.

Creating an Endpoint for Image Generation

Python

from fastapi import APIRouter, Depends
from app.models import Image
from app.schemas import ImageSchema
from app.utils import generate_image

router = APIRouter()

@router.post("/images")
async def generate_image(prompt: str, current_user: User = Depends(get_current_user), db: Session = Depends(get_db)):
    image_data = generate_image(prompt)
    image = Image(user_id=current_user.id, prompt=prompt, image_data=image_data)
    db.add(image)
    await db.commit()
    await db.refresh(image)
    return image

Retrieving Generated Images

Python

@router.get("/images/{image_id}")
async def get_image(image_id: int, db: Session = Depends(get_db)):
    image = await db.query(Image).filter(Image.id == image_id).first()
    if not image:
        raise HTTPException(status_code=404, detail="Image not found")
    return image   

Additional Factors

• Image Storage: Consider using a cloud storage solution like Amazon S3 or Google Cloud Storage to store large image files.
• Image Formats: Choose a suitable image format (e.g., JPEG, PNG) based on your requirements.
• Image Quality: Adjust the image quality and resolution to balance file size and visual quality.
• Error Handling: Implement appropriate error handling to catch exceptions that might occur during image generation or storage.

By following these steps, you can effectively integrate image generation capabilities into your FastAPI application, allowing users to create and manage images within your platform.