curl --compressed -H 'Accept: application/json' -H 'X-Api-Key: <client-api-key>' \
'https://eu.market-api.kaiko.io/v2/data/supply.v1/btc?start_time=2010-01-01T00:00:00.000Z&page_size=100'

import http.client
import json

# Enter your Kaiko API Key
api_key = "KAIKO_API_KEY"
api_host = "eu.market-api.kaiko.io"
api_base_endpoint = "/v2/data/supply.v1/{asset}"

# Mandatory parameter configuration
asset = "btc"

# Optional parameters
optional_params = {
    "start_time": "2010-01-01T00:00:00.000Z",
    "page_size": 100,
}

conn = http.client.HTTPSConnection(api_host)
headers = {
    "X-Api-Key": api_key,
    "Accept": "application/json"
}

# Construct the endpoint with query parameters
api_endpoint = api_base_endpoint.format(asset=asset)
url_params = "&".join([f"{param}={value}" for param, value in optional_params.items()])
endpoint_with_params = f"{api_endpoint}?{url_params}"

# Pagination handling
all_data = []
next_url = endpoint_with_params

while next_url:
    conn.request("GET", next_url, headers=headers)
    response = conn.getresponse()
    data = json.loads(response.read().decode("utf-8"))

    all_data.extend(data.get("data", []))
    print(f"Fetched {len(data.get('data', []))} datapoints. Total: {len(all_data)}")

    # Extract pagination token and update URL
    next_url = data.get("next_url", "").replace("https://eu.market-api.kaiko.io", "")
    if not next_url:
        break

conn.close()

# Output the fetched data
print(f"Total datapoints fetched: {len(all_data)}")
print(json.dumps(all_data, indent=2))