Cloud & Infrastructure

GCP Cloud Functions

Serverless functions on Google Cloud Platform.

Basic Function

# index.js
exports.helloWorld = (req, res) => {
    res.send('Hello, World!');
};

# Python
def hello_world(request):
    return 'Hello World'

Deploy Function

gcloud functions deploy hello-world \
    --runtime nodejs18 \
    --trigger-http \
    --allow-unauthenticated # make public

List & Delete

gcloud functions list # list all functions
gcloud functions describe hello-world # function details
gcloud functions delete hello-world # delete function
gcloud functions logs read hello-world # view logs

Event Triggers

# Cloud Storage trigger
--trigger-resource my-bucket \
--trigger-event google.storage.object.finalize

# Pub/Sub trigger
--trigger-topic my-topic