app.py

from fastapi import FastAPI, Form
from fastapi.responses import StreamingResponse
from PIL import Image, ImageDraw, ImageFont
import io

app = FastAPI()

@app.get("/")
def greet_json():
    return {"Hello": "World!"}


@app.post("/generate-image")
async def generate_image(text: str = Form(...)):
    # Create a blank image
    image = Image.new('RGB', (512, 256), color=(73, 109, 137))
    draw = ImageDraw.Draw(image)

    # Use a default font
    try:
        font = ImageFont.truetype("arial.ttf", 30)
    except:
        font = ImageFont.load_default()

    draw.text((10, 100), text, fill=(255, 255, 255), font=font)

    # Convert image to bytes
    buf = io.BytesIO()
    image.save(buf, format="PNG")
    buf.seek(0)
    return StreamingResponse(buf, media_type="image/png")