| Prompt: |
| Is Pub/Sub supported in Apache Beam? |
| |
| Response: |
| Pub/Sub is a Google Cloud service that provides a simple, reliable, scalable, and secure real-time messaging service for sending and receiving messages between independent applications. Apache Beam provides a PubSubIO connector that allows you to read and write messages from and to Pub/Sub. Pub/Sub is currently supported only in streaming pipelines. |
| |
| Pub/Sub is supported natively in the Beam SDKs for Java, Python, and Go. It is also available in Typescript through X Language. |
| |
| To get started with Pub/Sub and Apache Beam, the Dataflow Cookbook GitHub repository provides code examples for reading and writing data from and to Pub/Sub. |
| |
| Here is an example of the Apache Beam pipeline code for reading data from a Pub/Sub topic and writing it to another topic: |
| |
| ```python |
| from apache_beam.io import ReadFromPubSub |
| from apache_beam.io import WriteToPubSub |
| |
| with beam.Pipeline(options=options) as p: |
| ( |
| p |
| | "Read from Pub/Sub" >> ReadFromPubSub(topic="input_topic") |
| | "Write to Pub/Sub" >> WriteToPubSub(topic="output_topic") |
| ) |
| ``` |
