Question

I have been pounding my head against the wall over figuring out how to send authenticated requests with oauth.

I was able to get access tokens, but wasn’t entirely sure how to submit a request with them. I found this on twitter’s developer’s information:

https://dev.twitter.com/docs/auth/oauth/single-user-with-examples#python
which has some example code for sending an authorized request:

def oauth_req(url, key, secret, http_method="GET", post_body=None,http_headers=None):
    consumer = oauth.Consumer(key=consumerKey, secret=consumerSecret)
    token = oauth.Token(key=tokenKey, secret=tokenSecret)
    client = oauth.Client(consumer, token)
    resp, content = client.request(
        url,
        method=http_method,
        body=post_body,
        headers=http_headers,
        #force_auth_header=True                                                                                                                                                 
        )
    return resp,content

oauth_req('http://openapi.etsy.com/v2/shops/:user/transactions',tokenKey,tokenSecret)

However, when I included all of my information, I received the following error:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/tmp/python-22060Umg.py", line 153, in <module>
    transactions = oauth_req('http://openapi.etsy.com/v2/shops/:user/transactions',tokenKey,tokenSecret)
  File "/tmp/python-22060Umg.py", line 76, in oauth_req
    force_auth_header=True
TypeError: request() got an unexpected keyword argument 'force_auth_header'

where :user is the actual user (I’ve removed it from the post) and tokenKey/tokenSecret are the access tokens.

I thought perhaps it was as simple as commenting out the offending line, but no such luck:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/tmp/python-22060hwm.py", line 153, in <module>
    transactions = oauth_req('http://openapi.etsy.com/v2/shops/:user/transactions',tokenKey,tokenSecret)
  File "/tmp/python-22060hwm.py", line 75, in oauth_req
    headers=http_headers
  File "/usr/lib/python2.7/dist-packages/oauth2/__init__.py", line 662, in request
    req.sign_request(self.method, self.consumer, self.token)
  File "/usr/lib/python2.7/dist-packages/oauth2/__init__.py", line 493, in sign_request
    self['oauth_body_hash'] = base64.b64encode(sha(self.body).digest())
TypeError: must be string or buffer, not None

So now, stackoverflow, you are my only hope! Anyone has suggestions for how to use my access token to submit a request?

thanks!

Answer 1

Twitter’s documentation is out of date — the version of oauth2 they link to is a 3-year-old fork. There is no keyword argument force_auth_header anymore for oauth2.Client.request

The reason why you still get errors even after removing the offending line is because your default value for post_body is None which gets passed straight through to oauth2.Client.request. You won’t be able to do that in practice. You’ll either have to require that argument, pick a default value that works (e.g an empty string), or check before you pass it through to prevent this error.