From 82fa52c801d220a653d401ec9a5a97c09da1b1a4 Mon Sep 17 00:00:00 2001
From: Kenneth Kehl <@kkehl@flexion.us>
Date: Wed, 21 Aug 2024 13:31:36 -0700
Subject: [PATCH] fix log formatting

---
 notifications_utils/logging.py | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/notifications_utils/logging.py b/notifications_utils/logging.py
index 9f5a98c2e..3ec092b8c 100644
--- a/notifications_utils/logging.py
+++ b/notifications_utils/logging.py
@@ -160,6 +160,12 @@ class JSONFormatter(BaseJSONFormatter):
         log_record["logType"] = "application"
         try:
             log_record["message"] = log_record["message"].format(**log_record)
-        except (KeyError, IndexError) as e:
-            logger.exception("failed to format log message: {} not found".format(e))
+        except KeyError as e:
+            # We get occasional log messages that are nested dictionaries,
+            # for example, delivery receipts, where the formatting fails
+            # This is not a huge problem, don't dump stack traces into the logs
+            # for it.
+            logger.warning(f"failed to format log message: {e}")
+        except IndexError as e:
+            logger.exception(f"failed to format log message: {e}")
         return log_record