kaxil commented on a change in pull request #6578: [AIRFLOW-5907] Add S3 to 
MySql Operator
URL: https://github.com/apache/airflow/pull/6578#discussion_r398038266
 
 

 ##########
 File path: airflow/providers/mysql/operators/s3_to_mysql.py
 ##########
 @@ -0,0 +1,84 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, 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 os
+from typing import Optional
+
+from airflow.models import BaseOperator
+from airflow.providers.amazon.aws.hooks.s3 import S3Hook
+from airflow.providers.mysql.hooks.mysql import MySqlHook
+from airflow.utils.decorators import apply_defaults
+
+
+class S3ToMySqlTransfer(BaseOperator):
+    """
+    Loads a file from S3 into a MySQL table.
+
+    :param s3_source_key: The path to the file (S3 key) that will be loaded 
into MySQL.
+    :type s3_source_key: str
+    :param mysql_table: The MySQL table into where the data will be sent.
+    :type mysql_table: str
+    :param mysql_extra_options: MySQL options to specify exactly how to load 
the data.
+    :type mysql_extra_options: Optional[str]
+    :param aws_conn_id: The S3 connection that contains the credentials to the 
S3 Bucket.
+    :type aws_conn_id: str
+    :param mysql_conn_id: The MySQL connection that contains the credentials 
to the MySQL data base.
+    :type mysql_conn_id: str
+    """
+
+    template_fields = ('s3_source_key', 'mysql_table',)
+    template_ext = ()
+    ui_color = '#f4a460'
+
+    @apply_defaults
+    def __init__(self,
+                 s3_source_key: str,
+                 mysql_table: str,
+                 *args,
 
 Review comment:
   Just for the sake of consistency for how we use it elsewhere in the project, 
let's use *args **kwargs together.
   
   But I definitely know why you prefer that, as keyword arguments should 
follow positional args :)

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