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Connect Google BigQuery and Google Storage CSV file in our serverless environment

Use this template to Read rows from Google BigQuery table using them to create CSV file entries in Google Storage Bucket.

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Read rows from Google BigQuery table

Used integrations:
class GoogleBigquerySourceSelect {
async init() {
// TODO: Create your google-bigquery credential
// More info at https://yepcode.io/docs/integrations/google-bigquery/#credential-configuration
this.googleBigQuery = yepcode.integration.googleBigQuery(
"your-google-bigquery-credential-name"
);
}

async fetch(publish, done) {
// TODO: Customize your query
const query = `SELECT *
FROM \`your_db.your_schema.your_table_name\`
LIMIT 10`;

// for all options, see https://cloud.google.com/bigquery/docs/reference/rest/v2/jobs/query
const options = {
query: query,
// Location must match that of the dataset(s) referenced in the query.
location: "US",
};

// run the query as a job
const [job] = await this.googleBigQuery.createQueryJob(options);
console.log(`Job ${job.id} started.`);

// wait for the query to finish
const [rows] = await job.getQueryResults();
for (const row of rows) {
await publish(row);
}
done();
}

async close() {}
}

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Create CSV file entries in Google Storage Bucket

Used integrations:
class GoogleStorageTargetUploadCsv {
async init() {
// TODO: Create your google-storage credential
// More info at https://yepcode.io/docs/integrations/google-storage/#credential-configuration
const googleStorage = yepcode.integration.googleStorage(
"your-google-storage-credential-name"
);
// TODO: Customize your bucket name
const bucket = googleStorage.bucket("your-bucket-name");
// TODO: choose a destination file
const blob = bucket.file(`one-folder/my-filename-${Date.now()}.csv`);
this.ws = blob.createWriteStream({
metadata: {
contentType: "text/csv",
},
});
// Transform the items into a csv format
this.stringifier = csv.stringify({
delimiter: ",",
});
this.stringifier.pipe(this.ws);
}

async consume(item) {
// TODO: Customize csv row content with your item content
const csvRow = [item.id, item.name];
this.stringifier.write(csvRow);
}

async close() {
this.stringifier.end();
}
}

Other combinations

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