blob: 77170cb056142893d3303a5a9746da86f14b376d [file] [log] [blame]
:mod:`airflow.providers.snowflake.transfers.snowflake_to_slack`
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.. py:module:: airflow.providers.snowflake.transfers.snowflake_to_slack
Module Contents
---------------
.. py:class:: SnowflakeToSlackOperator(*, sql: str, slack_message: str, snowflake_conn_id: str = 'snowflake_default', slack_conn_id: str = 'slack_default', results_df_name: str = 'results_df', parameters: Optional[Union[Iterable, Mapping]] = None, warehouse: Optional[str] = None, database: Optional[str] = None, schema: Optional[str] = None, role: Optional[str] = None, slack_token: Optional[str] = None, **kwargs)
Bases: :class:`airflow.models.BaseOperator`
Executes an SQL statement in Snowflake and sends the results to Slack. The results of the query are
rendered into the 'slack_message' parameter as a Pandas dataframe using a JINJA variable called '{{
results_df }}'. The 'results_df' variable name can be changed by specifying a different
'results_df_name' parameter. The Tabulate library is added to the JINJA environment as a filter to
allow the dataframe to be rendered nicely. For example, set 'slack_message' to {{ results_df |
tabulate(tablefmt="pretty", headers="keys") }} to send the results to Slack as an ascii rendered table.
.. seealso::
For more information on how to use this operator, take a look at the guide:
:ref:`howto/operator:SnowflakeToSlackOperator`
:param sql: The SQL statement to execute on Snowflake (templated)
:type sql: str
:param slack_message: The templated Slack message to send with the data returned from Snowflake.
You can use the default JINJA variable {{ results_df }} to access the pandas dataframe containing the
SQL results
:type slack_message: str
:param snowflake_conn_id: The Snowflake connection id
:type snowflake_conn_id: str
:param slack_conn_id: The connection id for Slack
:type slack_conn_id: str
:param results_df_name: The name of the JINJA template's dataframe variable, default is 'results_df'
:type results_df_name: str
:param parameters: The parameters to pass to the SQL query
:type parameters: Optional[Union[Iterable, Mapping]]
:param warehouse: The Snowflake virtual warehouse to use to run the SQL query
:type warehouse: Optional[str]
:param database: The Snowflake database to use for the SQL query
:type database: Optional[str]
:param schema: The schema to run the SQL against in Snowflake
:type schema: Optional[str]
:param role: The role to use when connecting to Snowflake
:type role: Optional[str]
:param slack_token: The token to use to authenticate to Slack. If this is not provided, the
'webhook_token' attribute needs to be specified in the 'Extra' JSON field against the slack_conn_id
:type slack_token: Optional[str]
.. attribute:: template_fields
:annotation: = ['sql', 'slack_message']
.. attribute:: template_ext
:annotation: = ['.sql', '.jinja', '.j2']
.. attribute:: times_rendered
:annotation: = 0
.. method:: _get_query_results(self)
.. method:: _render_and_send_slack_message(self, context, df)
.. method:: _get_snowflake_hook(self)
.. method:: _get_slack_hook(self)
.. method:: render_template_fields(self, context, jinja_env=None)
.. method:: execute(self, context)