Camera API  

Best Answer by Mike:

Figured it out finally. For posterity, here's how to send a single image.

1. In your printer in the Prusa Connect console, click on the camera tab.
2. In the camera tab, click the "Add new other camera" button. This will generate a token that you will need later.
3. Find (or capture) an image in a .jpg format with 640x480 pixels (or so) and save it to some path on your local filesystem.
4. Think of some not-too-long string, it can be any printiable ascii for sure. (Maybe other characters, I don't know, probably best to just stick to ascii). This will be your fingerprint that you will use later.
5. Make sure you've installed some recent version of python 3 and that you've pip-installed requests, httpx, aiohttp, or some other http client (or be familiar with urllib3 in python).
6. Use code that is something like this (Note: to use this you'll need both httpx and loguru):

import base64
from pathlib import Path

import httpx
from loguru import logger


URL = 'https://webcam.connect.prusa3d.com/c/snapshot'
TOKEN = # Replace this comment with the token from the camera tab
FINGERPRINT = base64.b64encode(b'your-fingerprint-string-here')
image_path = Path('/the/path/to/your/image/here.jpg')

with image_path.open(mode='rb') as f:
    image = f.read()

headers = {
    'Content-Type': 'image/jpg',
    'fingerprint': FINGERPRINT,
    'token': TOKEN,
}

with httpx.AsyncClient() as client:
    response = await client.put(url=URL, headers=headers, content=image)

if response.is_error:
    logger.error('Error sending response: {}', response.text)
else:
    logger.info('Image sent successfully')

Now, to set up a webcam, find a raspberry pi or some computer. Pip install open cv and anything else you might need to read from the camera (v4l2 for example). Create a script modeled after the above. Create a cron that runs every 10 seconds and does something like the above, but reads the file from open cv instead of the file system.