Always return the response json in request_post

Signed-off-by: tdruez <tdruez@nexb.com>

dejacode_toolkit/__init__.py

@@ -123,16 +123,18 @@ def request_get(self, url, **kwargs):
             logger.error(f"{self.label} [Exception] {exception}")
 
     def request_post(self, url, **kwargs):
-        """
-        Return the response from calling URL using current session.
-        Return `None` in case of Exception.
-        """
+        """Return the response from a HTTP POST request on the provided `url` ."""
         if "timeout" not in kwargs:
             kwargs["timeout"] = self.default_timeout
 
         try:
             response = self.session.post(url, **kwargs)
             response.raise_for_status()
+        except requests.HTTPError as error:
+            logger.error(f"{self.label} [HTTPError] {error}")
+
+        # The response may contain valuable data even on non 200 status code.
+        try:
             return response.json()
         except (requests.RequestException, ValueError, TypeError) as exception:
             logger.error(f"{self.label} [Exception] {exception}")