the code below has error message "Error 400 with request: {     "message": "The following query parameters are invalid: deltav,format",     "docs": "https://www.bankofcanada.ca/valet/docs" } I don't know how to fix it. please kindly assist. Thanks. ------------------------------------------------------------- import requests import json # Define the endpoint and parameters endpoint = "observations/FX_RATES_DAILY" params = {     "start_date": "2022-03-01",     "end_date": "2022-03-31",     "series_frequency": "daily",     "series_format": "json", } # Make the request url = f"https://www.bankofcanada.ca/valet/{endpoint}" response = requests.get(url, params=params) # Check for errors if response.status_code != 200:     print(f"{response.status_code} error with request: {response.text}\nExiting the program ...")     raise SystemExit # Parse the JSON response data = response.json()["observations"] # Extract the exchange rates for CAD for observation in data:     rate = observation["FX_RATES"][f"CAD/{observation['FX_RATES']['currency']}"]     print(f"Date: {observation['d']}, Currency: {rate}")

the code below has error message "Error 400 with request: {
    "message": "The following query parameters are invalid: deltav,format",
    "docs": "https://www.bankofcanada.ca/valet/docs"
}
I don't know how to fix it. please kindly assist.

Thanks.

-------------------------------------------------------------

import requests
import json

# Define the endpoint and parameters
endpoint = "observations/FX_RATES_DAILY"
params = {
    "start_date": "2022-03-01",
    "end_date": "2022-03-31",
    "series_frequency": "daily",
    "series_format": "json",
}

# Make the request
url = f"https://www.bankofcanada.ca/valet/{endpoint}"
response = requests.get(url, params=params)

# Check for errors
if response.status_code != 200:
    print(f"{response.status_code} error with request: {response.text}\nExiting the program ...")
    raise SystemExit

# Parse the JSON response
data = response.json()["observations"]

# Extract the exchange rates for CAD
for observation in data:
    rate = observation["FX_RATES"][f"CAD/{observation['FX_RATES']['currency']}"]
    print(f"Date: {observation['d']}, Currency: {rate}")