hello-gcs

Java: Cloud Functions - hello-gcs

A Cloud Storage triggered Java Cloud Functions template.

Test locally

Compile:

mvn compile

Run the function:

mvn function:run

...
INFO: Serving function...
Feb 23, 2023 1:42:04 PM com.google.cloud.functions.invoker.runner.Invoker logServerInfo
INFO: Function: functions.Function
Feb 23, 2023 1:42:04 PM com.google.cloud.functions.invoker.runner.Invoker logServerInfo
INFO: URL: http://localhost:8081/

Inside the scripts folder, run test_local.sh to test the function locally:

./test_local.sh

< HTTP/1.1 200 OK
< Date: Thu, 23 Feb 2023 11:42:31 GMT
< Content-Length: 0
< Server: Jetty(9.4.45.v20220203)

You should see the following in the service logs:

...
Feb 24, 2023 11:01:04 AM functions.Function accept
INFO: Source: //storage.googleapis.com/projects/_/buckets/MY-BUCKET-NAME
Feb 24, 2023 11:01:04 AM functions.Function accept
INFO: Type: google.cloud.storage.object.v1.finalized
Feb 24, 2023 11:01:04 AM functions.Function accept
INFO: Name: MY_FILE.txt
Feb 24, 2023 11:01:04 AM functions.Function accept
INFO: Bucket: MY_BUCKET
Feb 24, 2023 11:01:04 AM functions.Function accept
INFO: Size: 352
Feb 24, 2023 11:01:04 AM functions.Function accept
INFO: Content type: text/plain

Before deploying to Google Cloud

Run setup.sh to enable required services, grant the pubsub.publisher role to the Cloud Storage service account and create a Google Cloud Storage (GCS) bucket:

./setup.sh

Deploy to Google Cloud

Cloud Code does not support deploying .NET functions yet but you can deploy with gcloud.

Run deploy.sh to deploy to Google Cloud:

./deploy.sh

Test in Google Cloud

Run test_cloud.sh to test the function in Google Cloud:

./test_cloud.sh

Cleanup

When you're done, you can cleanup created resources:

./cleanup.sh