def curl_post(self, path, body=None, params=None, extra_headers=None, files=None):
	import pycurl
	from io import BytesIO

	params = params or {}
	headers = {'Accept': 'application/json', 'User-Agent':self.SDK_VERSION, 'Content-type':'application/json'}
	if extra_headers:
		headers.update(extra_headers)
	uri = self.make_path(path)

	curl_headers = []
	for key, value in headers.items():
		curl_headers.append('{}:{}'.format(key, value))

	# PycURl
	full_url = os.path.join(uri, '?access_token={}'.format(params['access_token']))

	curl = pycurl.Curl()
	data = BytesIO()
	curl.setopt(pycurl.URL, full_url)
	curl.setopt(pycurl.HTTPHEADER, curl_headers)

	curl.setopt(pycurl.HTTPPOST, [
		('file', (
			pycurl.FORM_FILE, files['fullpath']
		)),
	])
	curl.setopt(pycurl.VERBOSE, 1)
	curl.setopt(pycurl.WRITEFUNCTION, data.write)
	curl.setopt(pycurl.FOLLOWLOCATION, 1)
	curl.setopt(pycurl.MAXREDIRS, 5)

	curl.perform()
	curl.close()

	print(data.getvalue())