Read Live Algorithm

Charts

Introduction

Read a chart from a live algorithm.

Request

Request body to obtain a chart from a live algorithm. The /live/chart/read API accepts requests in the following format:

ReadLiveChartRequest Model - Request to body to obtain a chart from a live algorithm.
projectId integer
required
example: 23456789

Id of the project that's live trading.
name string
required
example: Strategy Equity

Name of the chart to read.
count integer
required
example: 100

The number of data points to request.
start integer
required
example: 1717801200

The unix start time of the request.
end integer
required
example: 1743462000

The unix end time of the request.
Example
{
  "projectId": 23456789,
  "name": "Strategy Equity",
  "count": 100,
  "start": 1717801200,
  "end": 1743462000
}

Responses

The /live/chart/read API provides a response in the following format:

200 Success

LoadingResponse Model - Response when the requested chart or orders are being generated.
progress number
Loading percentage of the data generation process.
status string Enum
Status of the data generation process. Options : ['loading']
success boolean
Indicate if the API request was successful.
Example
{
  "progress": 0,
  "status": "loading",
  "success": true
}
ReadChartResponse Model - Response with the requested chart from a live algorithm or backtest
chart Chart object
Single Parent Chart Object for Custom Charting.
success boolean
Indicate if the API request was successful.
errors string Array
List of errors with the API call.
Example
{
  "chart": {
    "name": "string",
    "chartType": 0,
    "series": {
      "name": "string",
      "unit": "string",
      "index": 0,
      "values": {
    },
      "seriesType": 0,
      "color": "string",
      "scatterMarkerSymbol": "none"
    }
  },
  "success": true,
  "errors": [
    "string"
  ]
}
Chart Model - Single Parent Chart Object for Custom Charting.
name string
Name of the Chart.
chartType integer Enum
Type of the Chart. 0=Overlayed, 1=Stacked. Options : [0, 1]
series Series object
Series Objects for this Chart.
Example
{
  "name": "string",
  "chartType": 0,
  "series": {
    "name": "string",
    "unit": "string",
    "index": 0,
    "values": {
  },
    "seriesType": 0,
    "color": "string",
    "scatterMarkerSymbol": "none"
  }
}
Series Model - Chart Series Object - Series data and properties for a chart.
name string
Name of the series.
unit string
Axis for the chart series.
index integer
Index/position of the series on the chart.
values object
Values for the series plot. These values are assumed to be in ascending time order (first points earliest, last points latest).
seriesType integer Enum
Chart type for the series. 0=Line, 1=Scatter, 2=Candle, 3=Bar, 4=Flag, 5=StackedArea, 6=Pie, 7=Treemap, 9=Heatmap, 10=Scatter3d. Options : [0, 1, 2, 3, 4, 5, 6, 7, 9, 19]
color string
Color of the series.
scatterMarkerSymbol string Enum
Shape or symbol for the marker in a scatter plot. Options : ['none', 'circle', 'square', 'diamond', 'triangle', 'triangle-down']
Example
{
  "name": "string",
  "unit": "string",
  "index": 0,
  "values": {
},
  "seriesType": 0,
  "color": "string",
  "scatterMarkerSymbol": "none"
}

401 Authentication Error

UnauthorizedError Model - Unauthorized response from the API. Key is missing, invalid, or timestamp is too old for hash.
www_authenticate string
Header

Examples

The following example demonstrates listing, creating, reading, and updating live algorithms of a project through the cloud API.

from base64 import b64encode
from hashlib import sha256
from time import time
from requests import get, post
BASE_URL = 'https://www.quantconnect.com/api/v2/'

# You need to replace these with your actual credentials.
# You can request your credentials at https://www.quantconnect.com/settings/
# You can find our organization ID at https://www.quantconnect.com/organization/ 
USER_ID = 0
API_TOKEN = '____'
ORGANIZATION_ID = '____'

def get_headers():
    # Get timestamp
    timestamp = f'{int(time())}'
    time_stamped_token = f'{API_TOKEN}:{timestamp}'.encode('utf-8')

    # Get hased API token
    hashed_token = sha256(time_stamped_token).hexdigest()
    authentication = f'{USER_ID}:{hashed_token}'.encode('utf-8')
    authentication = b64encode(authentication).decode('ascii')

    # Create headers dictionary.
    return {
        'Authorization': f'Basic {authentication}',
        'Timestamp': timestamp
    }

# Authenticate to verify credentials
response = post(f'{BASE_URL}/authenticate', headers = get_headers())
print(response.json())

# --------------------


### List Live Algorithms
# Define placeholder IDs for project, compilation and node (replace with actual values)
project_id = 12345678
compile_id = "compile_id..."
node_id = "node_id..."
# Prepare data payload to list the past and current deployments of the project
payload = {
    "projectId": project_id  # ID of the project
}
# Send a POST request to the /live/list endpoint to list algorithms
response = post(f'{BASE_URL}/live/list', headers=get_headers(), json=payload)
# Parse the JSON response into python managable dict
result = response.json()
deployments = result['live'] if result['success'] else []
# The most recent deployment of the project, if any
latest = max(deployments, key=lambda x: x['launched'], default=None)
print(f"Live deployments: {len(deployments)}, latest: {latest['deployId'] if latest else None}")

### Create Live Algorithm
# Deploy only if the project has no running deployment
if latest is None or latest['status'] != 'Running':
    # Prepare the data payload for creating a live algorithm with necessary details
    payload = {
        "versionId": -1,  # Use the latest version of LEAN
        "projectId": project_id,  # ID of the project to deploy as a live algorithm
        "compileId": compile_id,  # Compilation ID for the algorithm code
        "nodeId": node_id,  # Node ID where the algorithm will run
        "brokerage": {  # Brokerage configuration for live trading
            "id": "QuantConnectBrokerage"  # Paper trading brokerage identifier
        },
        "dataProviders": {  # Data provider configuration
            "QuantConnectBrokerage": {
                "id": "QuantConnectBrokerage"  # Data provider identifier
            }
        },
        "parameters": {}  # Optional algorithm parameters (empty in this example)
    }
    # Send a POST request to the /live/create endpoint to deploy the algorithm
    response = post(f'{BASE_URL}/live/create', headers=get_headers(), json=payload)
    # Parse the JSON response into python managable dict from the API
    result = response.json()
    # Check if the request was successful and print the result
    if result['success']:
        print("Live Algorithm Created Successfully:")
        print(result)

### Read Live Algorithm Statistics
# Prepare data payload with the project ID to fetch the statistics of its latest deployment
payload = {
    "projectId": project_id  # ID of the project
}
# Send a POST request to the /live/read endpoint to get algorithm statistics
response = post(f'{BASE_URL}/live/read', headers=get_headers(), json=payload)
# Parse the JSON response into python managable dict
result = response.json()
# Check if the request was successful and print the statistics
if result['success']:
    print("Live Algorithm Statistics:")
    print(result)

### Liquidate Live Algorithm
# Prepare data payload with project ID to liquidate the algorithm
payload = {
    "projectId": project_id  # ID of the project to liquidate
}
# Send a POST request to the /live/update/liquidate endpoint to liquidate
response = post(f'{BASE_URL}/live/update/liquidate', headers=get_headers(), json=payload)
# Parse the JSON response into python managable dict
result = response.json()
# Check if the request was successful and print the result
if result['success']:
    print("Live Algorithm Liquidated Successfully:")
    print(result)

### Stop Live Algorithm
# Prepare data payload with project ID to stop the algorithm
payload = {
    "projectId": project_id  # ID of the project to stop
}
# Send a POST request to the /live/update/stop endpoint to stop the algorithm
response = post(f'{BASE_URL}/live/update/stop', headers=get_headers(), json=payload)
# Parse the JSON response into python managable dict
result = response.json()
# Check if the request was successful and print the result
if result['success']:
    print("Live Algorithm Stopped Successfully:")
    print(result)

### Export Orders
from decimal import Decimal
from time import sleep

# Download the orders of the last 750 days as a CSV file
payload = {
    "projectId": project_id  # ID of the project
}
response = post(f'{BASE_URL}/live/export/orders', headers=get_headers(), json=payload)
rows = response.text.splitlines()
header, recent = rows[0], rows[1:]
# The export starts at its first row. Older orders come from the /live/orders/read endpoint.
cutoff = recent[0].split(',')[1][:19].replace('T', ' ') if recent else '9999'

# Map the order type and status enums to the names in the CSV file
order_types = ["Market", "Limit", "Stop Market", "Stop Limit", "Market On Open", "Market On Close",
    "Option Exercise", "Limit If Touched", "Combo Market", "Combo Limit", "Combo Leg Limit", "Trailing Stop"]
order_statuses = ["New", "Submitted", "Partially Filled", "Filled", "", "Canceled", "None", "Invalid",
    "Cancel Pending", "Update Submitted"]

def number(value):
    text = format(Decimal(str(value)), 'f')
    return text.rstrip('0').rstrip('.') if '.' in text else text

# Read the older orders of each deployment that started before the cutoff
older = []
response = post(f'{BASE_URL}/live/list', headers=get_headers(), json={"projectId": project_id})
deployments = sorted(response.json()['live'], key=lambda x: x['launched'])
for deployment in deployments:
    if deployment['launched'] >= cutoff:
        continue
    start = 0
    while True:
        payload = {
            "projectId": project_id,  # ID of the project
            "deployId": deployment['deployId'],  # ID of the deployment
            "start": start,  # Starting index for orders
            "end": start + 1000  # Ending index for orders
        }
        result = post(f'{BASE_URL}/live/orders/read', headers=get_headers(), json=payload).json()
        # The first request can return a loading status while the orders are prepared
        if result.get('status') == 'loading':
            sleep(1)
            continue
        for order in result['orders']:
            if order['time'][:19].replace('T', ' ') >= cutoff:
                continue
            older.append(','.join([
                deployment['deployId'], order['time'], order['symbol']['value'],
                number(order['price']), number(order['quantity']),
                f'"{order_types[order["type"]]}"', f'"{order_statuses[order["status"]]}"',
                number(order['value']), '"' + order['tag'].replace('"', '""') + '" '
            ]))
        start += 1000
        if start >= result['length']:
            break

# Save all the orders in one CSV file
with open(f'orders-{project_id}.csv', 'w', newline='') as file:
    file.write('\n'.join([header] + older + recent) + '\n')
print(f"Saved {len(older) + len(recent)} orders")

### Export Trades
# Download the closed trades that opened since the start time as a CSV file
payload = {
    "projectId": project_id,  # ID of the project
    "start": 1717801200,  # Start time (Unix timestamp) for the trade entry time
    "end": 1743462000  # End time (Unix timestamp) for the trade exit time
}
response = post(f'{BASE_URL}/live/export/trades', headers=get_headers(), json=payload)
with open(f'trades-{project_id}.csv', 'w', newline='') as file:
    file.write(response.text)

### Export Insights
# Download the insights of all the live deployments of the project as a JSON file
payload = {
    "deployId": latest['deployId']  # ID of a deployment of the project
}
response = post(f'{BASE_URL}/live/export/insights', headers=get_headers(), json=payload)
with open(f'insights-{project_id}.json', 'w', newline='') as file:
    file.write(response.text)

### Export Logs
# Download the logs of all the live deployments of the project as a text file
payload = {
    "projectId": project_id,  # ID of the project
    "deployId": latest['deployId']  # ID of a deployment of the project, used to name the file
}
response = post(f'{BASE_URL}/live/export/logs', headers=get_headers(), json=payload)
with open(f'logs-{project_id}.txt', 'w', newline='') as file:
    file.write(response.text)

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