fix: appending default tags for single Point (#117)

CHANGELOG.md

@@ -3,6 +3,9 @@
 ### Features
 1. [#112](https://github.com/influxdata/influxdb-client-python/pull/113): Support timestamp with different timezone in _convert_timestamp
 
+### Bug Fixes
+1. [#117](https://github.com/influxdata/influxdb-client-python/pull/117): Fixed appending default tags for single Point 
+
 ## 1.8.0 [2020-06-19]
 
 ### Features

influxdb_client/client/write_api.py

@@ -202,14 +202,7 @@ def write(self, bucket: str, org: str = None,
 
         if self._point_settings.defaultTags and record is not None:
             for key, val in self._point_settings.defaultTags.items():
-                if isinstance(record, dict):
-                    record.get("tags")[key] = val
-                else:
-                    for r in record:
-                        if isinstance(r, dict):
-                            r.get("tags")[key] = val
-                        elif isinstance(r, Point):
-                            r.tag(key, val)
+                self._append_default_tag(key, val, record)
 
         if self._write_options.write_type is WriteType.batching:
             return self._write_batching(bucket, org, record,
@@ -301,6 +294,15 @@ def _write_batching(self, bucket, org, data,
 
         return None
 
+    def _append_default_tag(self, key, val, record):
+        if isinstance(record, Point):
+            record.tag(key, val)
+        elif isinstance(record, dict):
+            record.get("tags")[key] = val
+        elif isinstance(record, list):
+            for item in record:
+                self._append_default_tag(key, val, item)
+
     def _itertuples(self, data_frame):
         cols = [data_frame.iloc[:, k] for k in range(len(data_frame.columns))]
         return zip(data_frame.index, *cols)

tests/test_WriteApi.py

@@ -334,6 +334,42 @@ def test_write_point_different_precision(self):
         self.assertEqual(result[1].records[0].get_time(),
                          datetime.datetime(2020, 4, 20, 6, 30, tzinfo=datetime.timezone.utc))
 
+    def test_write_point_with_default_tags(self):
+        bucket = self.create_test_bucket()
+
+        point = Point("h2o_feet")\
+            .field("water_level", 1)\
+            .tag("location", "creek level")
+
+        self.write_client.write(bucket.name, self.org, point)
+
+        flux_result = self.client.query_api().query(f'from(bucket:"{bucket.name}") |> range(start: 1970-01-01T00:00:00.000000001Z)')
+        self.assertEqual(1, len(flux_result))
+
+        record = flux_result[0].records[0]
+
+        self.assertEqual(self.id_tag, record["id"])
+        self.assertEqual(self.customer_tag, record["customer"])
+        self.assertEqual("LA", record[self.data_center_key])
+
+    def test_write_list_of_list_point_with_default_tags(self):
+        bucket = self.create_test_bucket()
+
+        point = Point("h2o_feet")\
+            .field("water_level", 1)\
+            .tag("location", "creek level")
+
+        self.write_client.write(bucket.name, self.org, [[point]])
+
+        flux_result = self.client.query_api().query(f'from(bucket:"{bucket.name}") |> range(start: 1970-01-01T00:00:00.000000001Z)')
+        self.assertEqual(1, len(flux_result))
+
+        record = flux_result[0].records[0]
+
+        self.assertEqual(self.id_tag, record["id"])
+        self.assertEqual(self.customer_tag, record["customer"])
+        self.assertEqual("LA", record[self.data_center_key])
+
 
 class AsynchronousWriteTest(BaseTest):