[Python] Uploaded image from script to Figma file through API on Python doesn't appear

I'm trying to upload several images from my pc to figma file. The script sees the file, its' nodes, ids, but can't put the image inside file, despite no errors. I've created server through python -m http.server 8000, and uploading from there. If anyone has ideas how to fix this, please, write or ask details.

Here's code:

import requests
import os
import traceback

# Personal Figma token
TOKEN = "token"
FILE_KEY = "file key"

# Auth
HEADERS = {
"X-Figma-Token": TOKEN
}

# Uploading to Figma
def upload_image_to_node(node_id, image_url):
url = f"https://api.figma.com/v1/images/{FILE_KEY}"
json_data = {
"requests": [
{
"node_id": node_id,
"fill": {
"type": "IMAGE",
"image_url": image_url,
"scale_mod": "FILL"
}
}
]
}
response = requests.post(url, headers=HEADERS, json=json_data)
if response.status_code == 200:
print(f"Image {image_url} successfully uploaded to node {node_id}.")
else:
print(f"Error: {response.status_code}, {response.text}")

# Main
def process_images(input_folder, node_id):
base_url = "http://localhost:8000"
for filename in os.listdir(input_folder):
if filename.endswith((".png", ".jpg")):
image_url = f"{base_url}/{filename}"
upload_image_to_node(node_id, image_url)

try:
node_id = "0:1" # Main node in Figma
process_images("out/", node_id) # out/ is where images stored
except Exception as e:
print("Error occured:")
traceback.print_exc()
input("Press Enter to quit..")

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