如何在 POST 请求（表单数据）中上传文件？

Question

I use this GET request https://api.telegram.org/file/bot<token>/<file_path> which allow us to download the file from Telegram API. Now I need to send this file in the second POST request (form-data).

Right now my code raises such error :

Exception: embedded null byte Traceback

The code snippet :

# Download the file via GET request of the Telegram API.
response = requests.get("{0}/file/bot{1}/{2}".format(TELEGRAM_API_URL, telegram_bot_token, file_path))

files = [
    ('file', (file_name, open(response.content, 'rb'), 'application/octet-stream')) # error
]

# Upload the file via POST request.
response = requests.post(FILE_STORAGE_SERVICE_API_URL, files=files)

Question :

How do I convert a file correctly so that a POST request can process it?

Answer 1

The data type of the response.content which I take from the first request is <class 'bytes'> .

The working code snippet:

response = requests.get("{0}/file/bot{1}/{2}".format(TELEGRAM_API_URL, telegram_bot_token, file_path))

files =  {
    "file": response.content
}

requests.post(FILE_STORAGE_SERVICE_API_URL, files=files)