Source code for tests.system.snowflake.example_copy_into_snowflake
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"""
Example use of Snowflake related operators.
"""
from __future__ import annotations
import os
from datetime import datetime
from airflow import DAG
from airflow.providers.snowflake.transfers.copy_into_snowflake import CopyFromExternalStageToSnowflakeOperator
[docs]SNOWFLAKE_CONN_ID = "my_snowflake_conn"
# TODO: should be able to rely on connection's schema,
# but currently param required by CopyFromExternalStageToSnowflakeOperator
[docs]SNOWFLAKE_STAGE = "stage_name"
[docs]SNOWFLAKE_SAMPLE_TABLE = "sample_table"
[docs]S3_FILE_PATH = "</path/to/file/sample_file.csv"
[docs]ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
[docs]DAG_ID = "example_s3_to_snowflake"
# [START howto_operator_snowflake]
with DAG(
DAG_ID,
start_date=datetime(2021, 1, 1),
default_args={"snowflake_conn_id": SNOWFLAKE_CONN_ID},
tags=["example"],
schedule="@once",
catchup=False,
) as dag:
# [START howto_operator_s3_copy_into_snowflake]
[docs] copy_into_table = CopyFromExternalStageToSnowflakeOperator(
task_id="copy_into_table",
snowflake_conn_id=SNOWFLAKE_CONN_ID,
files=[S3_FILE_PATH],
table=SNOWFLAKE_SAMPLE_TABLE,
stage=SNOWFLAKE_STAGE,
file_format="(type = 'CSV',field_delimiter = ';')",
pattern=".*[.]csv",
)
# [END howto_operator_s3_copy_into_snowflake]
from tests_common.test_utils.system_tests import get_test_run # noqa: E402
# Needed to run the example DAG with pytest (see: tests/system/README.md#run_via_pytest)
[docs]test_run = get_test_run(dag)