使用Full Contact API订阅联系人时遇TypeError错误求助

Hey there, let's get that webhook subscription working! The error you're seeing—TypeError: POST data should be bytes, an iterable of bytes, or a file object. It cannot be of type str—is happening because urllib.request.urlopen expects the POST data to be in bytes format, but right now you're passing a plain string from json.dumps().

Even though you mentioned trying UTF-8 encoding, your current code doesn't actually encode the JSON string to bytes. Plus, we should add a Content-Type header to let FullContact's API know we're sending JSON data—this is a common gotcha with API requests.

Here's the corrected version of your code:

import urllib.request, json

# Set up the request URL and headers
req = urllib.request.Request('https://api.fullcontact.com/v3/person.subscribe')
req.add_header('Authorization', 'Bearer {my api key}')
# Add this header to specify we're sending JSON
req.add_header('Content-Type', 'application/json')

# Create the payload and encode it to bytes
data = json.dumps({ 
    "email": "bart@fullcontact.com", 
    "twitter": "@bartlorang", 
    "fullName": "Bart Lorang", 
    "webhookUrl": "http://www.fullcontact.com/hookUrl" 
})
# Encode the string to UTF-8 bytes
encoded_data = data.encode('utf-8')

# Send the request with the encoded data
response = urllib.request.urlopen(req, encoded_data)

# Optional: Read and print the response to verify success
print(response.read().decode('utf-8'))

Key Fixes: #

• We encode the JSON string to bytes using .encode('utf-8')—this satisfies urllib's requirement for byte-based POST data.
• Added the Content-Type: application/json header, which tells the FullContact API how to parse the incoming payload. Without this, some APIs might reject the request or parse the data incorrectly.

If you still run into issues after this, double-check that your API key is correctly formatted (replace {my api key} with your actual key) and that your webhookUrl is publicly accessible (FullContact needs to reach it to send events).

内容的提问来源于stack exchange，提问作者Luke Byrne