payload log dumping was added per request from Steve from Sparkpost support,

during debugging of DKIM signature validation problem with some messages

Case ID# 203488

Payload dumping can be disabled with usual python logging configuration

Author: wooyek

sparkpost/transmissions.py

@@ -3,10 +3,12 @@
 import json
 import warnings
 from email.utils import parseaddr
+import logging
 
 from .base import Resource
 from .exceptions import SparkPostException
 
+log = logging.getLogger(__name__)
 
 try:
     string_types = basestring
@@ -251,7 +253,13 @@ def send(self, **kwargs):
         """
 
         payload = self._translate_keys(**kwargs)
-        results = self.request('POST', self.uri, data=json.dumps(payload))
+        data = json.dumps(payload)
+        # payload log dumping was added per request from Steve from Sparkpost support,
+        # during debugging of DKIM signature validation problem with some messages
+        # Case ID# 203488
+        # Payload dumping can be disabled with usual python logging configuration
+        logging.debug("Payload data: %s", data)
+        results = self.request('POST', self.uri, data=data)
         return results
 
     def _fetch_get(self, transmission_id):