feat: delete_api also accept datetime as a value for start and stop (#317)

Author: bednar

CHANGELOG.md

@@ -3,6 +3,7 @@
 ### Features
 1. [#319](https://github.com/influxdata/influxdb-client-python/pull/319): Add supports for array expressions in query parameters
 2. [#320](https://github.com/influxdata/influxdb-client-python/pull/320): Add JSONEncoder to encode query results to JSON
+1. [#317](https://github.com/influxdata/influxdb-client-python/pull/317): `delete_api` also accept `datetime` as a value for `start` and `stop`
 
 ### Bug Fixes
 1. [#321](https://github.com/influxdata/influxdb-client-python/pull/321): Fixes return type for dashboard when `include=properties` is used

influxdb_client/client/delete_api.py

@@ -1,8 +1,9 @@
 """Delete time series data from InfluxDB."""
 
-import datetime
+from datetime import datetime
 
 from influxdb_client import DeleteService, DeletePredicateRequest
+from influxdb_client.client.util.date_utils import get_date_helper
 
 
 class DeleteApi(object):
@@ -24,5 +25,11 @@ def delete(self, start: datetime, stop: object, predicate: object, bucket: str,
         :param org: organization id or name
         :return:
         """
+        date_helper = get_date_helper()
+        if isinstance(start, datetime):
+            start = date_helper.to_utc(start)
+        if isinstance(stop, datetime):
+            stop = date_helper.to_utc(stop)
+
         predicate_request = DeletePredicateRequest(start=start, stop=stop, predicate=predicate)
         return self._service.post_delete(delete_predicate_request=predicate_request, bucket=bucket, org=org)

tests/test_DeleteApi.py

@@ -1,3 +1,7 @@
+from datetime import datetime
+
+from pytz import UTC
+
 from influxdb_client import PermissionResource, Permission, InfluxDBClient, Point
 from influxdb_client.client.write_api import SYNCHRONOUS
 from tests.base_test import BaseTest
@@ -11,7 +15,6 @@ def setUp(self) -> None:
 
         for bucket in response.buckets:
             if bucket.name.endswith("_IT"):
-                print("Delete bucket: ", bucket.name)
                 self.buckets_api.delete_bucket(bucket)
 
         self.bucket = self.create_test_bucket()
@@ -25,15 +28,14 @@ def setUp(self) -> None:
                                                                               permissions=[read_bucket, write_bucket])
         self.auth_token = authorization.token
         self.client.close()
-        self.client = InfluxDBClient(url=self.host, token=self.auth_token, debug=True, org=self.org)
+        self.client = InfluxDBClient(url=self.host, token=self.auth_token, org=self.org)
         self.delete_api = self.client.delete_api()
 
     def test_delete_buckets(self):
 
         self._write_data()
 
         q = f'from(bucket:\"{self.bucket.name}\") |> range(start: 1970-01-01T00:00:00.000000001Z)'
-        print(q)
         flux_tables = self.client.query_api().query(query=q, org=self.organization.id)
         self.assertEqual(len(flux_tables), 1)
         self.assertEqual(len(flux_tables[0].records), 12)
@@ -52,19 +54,30 @@ def test_delete_buckets_by_name(self):
         self._write_data()
 
         q = f'from(bucket:\"{self.bucket.name}\") |> range(start: 1970-01-01T00:00:00.000000001Z)'
-        print(q)
         flux_tables = self.client.query_api().query(query=q, org=self.organization.id)
         self.assertEqual(len(flux_tables), 1)
         self.assertEqual(len(flux_tables[0].records), 12)
 
         start = "1970-01-01T00:00:00.000000001Z"
         stop = "1970-01-01T00:00:00.000000012Z"
+        self._delete_and_verify(start, stop)
+
+    def test_start_stop_types(self):
+        starts_stops = [
+            ("1970-01-01T00:00:00.000000001Z", "1970-01-01T00:00:00.000000012Z"),
+            (datetime(1970, 1, 1, 0, 0, 0, 0, UTC), datetime(1970, 1, 1, 0, 0, 0, 1, UTC)),
+            (datetime(1970, 1, 1, 0, 0, 0, 0), datetime(1970, 1, 1, 0, 0, 0, 1))
+        ]
+        for start_stop in starts_stops:
+            self._write_data()
+            self._delete_and_verify(start_stop[0], start_stop[1])
+
+    def _delete_and_verify(self, start, stop):
         self.delete_api.delete(start, stop, "", bucket=self.bucket.name, org=self.organization.name)
-
-        flux_tables2 = self.client.query_api().query(
+        flux_tables = self.client.query_api().query(
             f'from(bucket:"{self.bucket.name}") |> range(start: 1970-01-01T00:00:00.000000001Z)',
             org=self.organization.id)
-        self.assertEqual(len(flux_tables2), 0)
+        self.assertEqual(len(flux_tables), 0)
 
     def _write_data(self):