Event - serialize non-serializable fields as str (#51)

nuclio_sdk/event.py

@@ -196,7 +196,7 @@ def to_json(self):
         if isinstance(obj["body"], bytes):
             obj["body"] = base64.b64encode(obj["body"]).decode("ascii")
 
-        return json.dumps(obj)
+        return json.dumps(obj, default=str)
 
     def get_header(self, header_key):
         for key, value in self.headers.items():

nuclio_sdk/test/test_event.py

@@ -11,7 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
+import datetime
 import json
 
 import nuclio_sdk.test
@@ -49,6 +49,13 @@ def test_event_to_json_string_body(self):
         serialized_event = self._deserialize_event(event)
         self.assertEqual(request_body, serialized_event.body)
 
+    def test_print_event(self):
+        """
+        Test that printing an event doesn't raise an exception
+        """
+        event = nuclio_sdk.Event(body=datetime.datetime(2022, 1, 1))
+        print(event)
+
     def _deserialize_event(self, event):
         raise NotImplementedError