Fix byes in LogRecord bug

Author: DylanRussell

opentelemetry-exporter-gcp-logging/src/opentelemetry/exporter/cloud_logging/__init__.py

@@ -117,10 +117,18 @@ def _convert_any_value_to_string(value: Any) -> str:
     return ""
 
 
+def _convert_bytes_to_b64(body: Mapping) -> Mapping:
+    for key, value in list(body.items()):
+        if isinstance(value, bytes):
+            body[key] = base64.b64encode(value).decode()
+        elif isinstance(value, Mapping):
+            body[key] = _convert_bytes_to_b64(value)
+    return body
+
 def _set_payload_in_log_entry(log_entry: LogEntry, body: Any | None):
     struct = Struct()
     if isinstance(body, Mapping):
-        struct.update(body)
+        struct.update(_convert_bytes_to_b64(body))
         log_entry.json_payload = struct
     elif isinstance(body, bytes):
         json_str = body.decode("utf-8", errors="replace")

opentelemetry-exporter-gcp-logging/tests/__snapshots__/test_cloud_logging/test_convert_otlp_dict_body.json

@@ -4,6 +4,7 @@
       {
         "jsonPayload": {
           "kvlistValue": {
+            "bytes_field": "Ynl0ZXM=",
             "values": [
               {
                 "key": "content",

opentelemetry-exporter-gcp-logging/tests/test_cloud_logging.py

@@ -92,7 +92,8 @@ def test_convert_otlp_dict_body(
                                     "stringValue": "You're a helpful assistant."
                                 },
                             }
-                        ]
+                        ],
+                        "bytes_field": b'bytes'
                     }
                 },
             ),