调用蒙特利尔STM的GTFS API遇400错误，求排查思路

我在使用蒙特利尔地铁公司（STM）的GTFS交通API时，运行以下Python代码收到400错误（提示“请求过多”），希望有相关API使用经验的人帮忙排查问题。

import requests
api_key = "API-KEY-FROM-DEVELOPER-ACCOUNT"
api_url = f"https://api.stm.info/pub/od/gtfs-rt/ic/v2/vehiclePositions"

# Prepare the request headers with the API key
headers = {
    "Authorization": f"Bearer {api_key}",
    "Content-Type": "application/json",
     }

# Send the HTTP GET request to the API endpoint
response = requests.get(api_url, headers=headers)

# if you get 200 as response... everything ok
print("response.status_code",response.status_code)

# Check if the request was successful (status code 200)

if response.status_code == 200:
    try:
        # Parse the JSON response
        data = response.json()

        # Process and use the retrieved data as needed
        print(data)
    except ValueError as e:
        print("Error parsing JSON:", e)
        print("Response content:", response.text)
else:
    # Handle unsuccessful request
    print(f"Error: {response.status_code}")

我期望上述代码能返回status_code 200。

后续更新：实际问题出在认证方式，将请求头修改为以下内容后成功获取200响应，问题已解决。

headers = {
"apiKey":api_key,
"Content-Type": "application/json"
}

感谢所有提供帮助的人，特别感谢ChatGPT！

内容的提问来源于stack exchange，提问作者oriolsierra