When GCS csv finalize, trigger to BigQuery in using Golang on Cloud Functions
copy .env.example.yaml to .env.yaml
$ cp .env.example.yaml .env.yaml
$ vim ./.env.yaml
Setup your BQ project_id, dataset and table name
$ gcloud functions deploy GCSToBigQuery \
--runtime go111 \
--trigger-resource <YOUR_BUCKET_NAME> \
--trigger-event google.storage.object.finalize \
--env-vars-file .env.yaml