/
usa_1910_current_dag.py
89 lines (81 loc) · 3.15 KB
/
usa_1910_current_dag.py
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# Copyright 2021 Google LLC
#
# Licensed 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.
from airflow import DAG
from airflow.operators import bash
from airflow.providers.google.cloud.transfers import gcs_to_bigquery
default_args = {
"owner": "Google",
"depends_on_past": False,
"start_date": "2021-06-17",
}
with DAG(
dag_id="usa_names.usa_1910_current",
default_args=default_args,
max_active_runs=1,
schedule_interval="@monthly",
catchup=False,
default_view="graph",
) as dag:
# Task to copy `namesbystate.zip` from Social Security Administration to GCS
download_and_process_source_zip_file = bash.BashOperator(
task_id="download_and_process_source_zip_file",
bash_command="mkdir -p $data_dir/{{ ds }}\ncurl -o $data_dir/{{ ds }}/namesbystate.zip -L $zip_source_url\nunzip $data_dir/{{ ds }}/namesbystate.zip -d $data_dir/{{ ds }}\ncat $data_dir/{{ ds }}/*.TXT \u003e\u003e $data_dir/{{ ds }}/data.csv\n",
env={
"zip_source_url": "https://www.ssa.gov/OACT/babynames/state/namesbystate.zip",
"data_dir": "/home/airflow/gcs/data/usa_names/usa_1910_current",
},
)
# Task to load the data from Airflow data folder to BigQuery
load_csv_file_to_bq_table = gcs_to_bigquery.GCSToBigQueryOperator(
task_id="load_csv_file_to_bq_table",
bucket="{{ var.json.shared.composer_bucket }}",
source_objects=["data/usa_names/usa_1910_current/{{ ds }}/data.csv"],
source_format="CSV",
destination_project_dataset_table="usa_names.usa_1910_current",
skip_leading_rows=0,
write_disposition="WRITE_TRUNCATE",
schema_fields=[
{
"name": "state",
"type": "STRING",
"description": "2-digit state code",
"mode": "NULLABLE",
},
{
"name": "gender",
"type": "STRING",
"description": "Sex (M=male or F=female)",
"mode": "NULLABLE",
},
{
"name": "year",
"type": "INTEGER",
"description": "4-digit year of birth",
"mode": "NULLABLE",
},
{
"name": "name",
"type": "STRING",
"description": "Given name of a person at birth",
"mode": "NULLABLE",
},
{
"name": "number",
"type": "INTEGER",
"description": "Number of occurrences of the name",
"mode": "NULLABLE",
},
],
)
download_and_process_source_zip_file >> load_csv_file_to_bq_table