- Recipes
- Snowflake to Google Storage CSV file
Connect Snowflake and Google Storage CSV file in our serverless environment
Use this template to Read rows from Snowflake table using them to create CSV file entries in Google Storage Bucket.
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Read rows from Snowflake table
Used integrations:
JavaScript
Python
class SnowflakeSourceSelect {
async init() {
// TODO: Create your snowflake credential
// More info at https://yepcode.io/docs/integrations/snowflake/#credential-configuration
this.snowflake = yepcode.integration.snowflake(
"your-snowflake-credential-name"
);
await this.snowflake.connect();
}
async fetch(publish, done) {
// TODO: Customize your SQL query
this.snowflake
.execute({
sqlText: "SELECT * FROM YOUR_TABLE LIMIT 30",
})
.streamRows()
.on("data", publish)
.on("end", done);
}
async close() {
await this.snowflake.destroy();
}
}
import time
class SnowflakeSourceSelect:
def setup(self):
# TODO: Create your Snowflake credential:
# More info at https://yepcode.io/docs/integrations/snowflake/#credential-configuration
self.snowflake_connection = yepcode.integration.snowflake(
"your-snowflake-credential-name"
)
def generator(self):
cursor = self.snowflake_connection.cursor()
# TODO: customize the query: table name, filter conditions, bind params, etc.
# More info at: https://docs.snowflake.com/developer-guide/python-connector/python-connector-example#querying-data
cursor.execute(
"SELECT * FROM your_table WHERE some_field = %s LIMIT 1000;",
("some_field_value",),
)
for item in cursor:
yield item
def close(self):
pass
Do you need help solving this integration with YepCode?
Let's talkCreate CSV file entries in Google Storage Bucket
Used integrations:
- JavaScript
- Python
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();
}
}
import csv
import io
class AccumulatingStream:
def __init__(self):
self.data = io.BytesIO()
def write(self, item):
self.data.write(item.encode("utf-8"))
def get_stream(self):
self.data.seek(0)
return self.data
class GoogleStorageTargetUploadCsv:
def setup(self):
# TODO: Create your Google Storage credential:
# More info at https://yepcode.io/docs/integrations/google-storage/#credential-configuration
self.storage_client = yepcode.integration.googleStorage("your-storage-credential-name")
self.acc_stream = AccumulatingStream()
self.stringifier = csv.writer(self.acc_stream, delimiter=",")
def consume(self, generator, done):
for item in generator:
# TODO: customize the csv row to create from your item content
csv_row = [item["value"], item["text"]]
self.stringifier.writerow(csv_row)
done()
def close(self):
# TODO: customize the bucket name and object key
try:
bucket = self.storage_client.get_bucket("bucket_name")
blob = bucket.blob("object_key")
# Upload from a stream
blob.upload_from_file(self.acc_stream.get_stream())
except Exception as error:
print(f"Error uploading object: {error}")
CSVFAQs
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