Update closed loop server with new interface

[wljungbergh]

Update the closed-loop server

• Removing async definitions
• Serialize tensor directly instead of converting to PNG :zap:

[atonderski]

I wonder if it would be better to allow for both raw tensors as well as actual images. Raw tensors are great if running on the same local connection (or even machine), but it could be horribly slow in other settings.

[atonderski]

maybe something like this:

class ImageFormat(str, Enum):
    raw = "raw"
    png = "png"
    jpg = "jpg"

@app.get("/image/")
async def get_image(format: ImageFormat = ImageFormat.jpg):
    image_bytes = get_image_bytes(format)  # Assuming get_image_bytes() method exists
    if format in (ImageFormat.jpg, ImageFormat.png):
        return Response(content=image_bytes, media_type=f"image/{format.value}")
    else:
        return PlainTextResponse(content=image_bytes, media_type="text/plain")

Alternatively, yours truly chatgpt suggested this, dunno if nice

    if format == ImageFormat.raw:
        return StreamingResponse(iter([image_bytes]), media_type="image/jpeg")
    elif format == ImageFormat.png:
        return StreamingResponse(iter([image_bytes]), media_type="image/png")
    elif format == ImageFormat.jpg:
        return StreamingResponse(iter([image_bytes]), media_type="image/jpeg")

[wljungbergh]

I like it. I added options for raw, png, and jpeg/jpg. However, I didn't change to the streaming response for now.