Inspirational Morning

Send a good morning message to your Google Chat webhook. The message would include the day of the week, a quote, and the author of the quote. Quote and its author is fetched using ZenQuotes API.

Note

Google Chat webhook only supports Google Workspace accounts.

Local dev

1. Get the desired GChat webhook URL. You can register a webhook by following the Google Chat webhooks documentation.

2. Save the webhook URL, and optionally a time zone, in the .env file in the root of the project. For example:

   GSPACE_WEBHOOK=https://chat.googleapis.com/v1/spaces/SPACE_ID/messages?key=KEY&token=TOKEN
   TIMEZONE=Pacific/Midway

3. You may run the application in dev mode,

   make dev

   Or in a container using

   make container-run

4. Once the container is running, hit the exposed REST endpoint to send the greeting.

   curl --silent --request POST --location http://localhost:3005/api/greet | jq

5. To clean up, stop and remove the container and the image.

   make container-destroy

Deploy to Google Cloud Functions

1. Build the application. This will create a deployable JAR file in the target/deployment directory.

   make build

2. Create up a Pub/Sub topic.

   gcloud pubsub topics create topic-inspirational-morning

3. Create a cron job schedule for every weekday at 08:00.

   gcloud scheduler jobs create pubsub schedule-job-inspirational-morning \
      --schedule="0 8 * * 1-5" \
      --topic=topic-inspirational-morning \
      --message-body="job is triggered" \
      --time-zone="Pacific/Auckland" \
      --location="us-central1"

4. Deploy the application as a Cloud Function

   gcloud functions deploy inspirational-morning \
      --gen2 \
      --allow-unauthenticated \
      --trigger-topic=topic-inspirational-morning \
      --region=us-central1 \
      --timeout=540s \
      --entry-point=io.quarkus.gcp.functions.QuarkusCloudEventsFunction \
      --runtime=java17 \
      --memory=256MiB \
      --cpu=0.167 \
      --source=target/deployment \
      --set-env-vars=TIMEZONE="Pacific/Auckland",GSPACE_WEBHOOK="https://chat.googleapis.com/v1/spaces/SPACE_ID/messages?key=KEY&token=TOKEN"

5. [OPTIONAL] Trigger the job manually

   gcloud scheduler jobs run schedule-job-inspirational-morning --location="us-central1"

Google Cloud Clean up

1. Delete the function

   gcloud functions delete inspirational-morning --region=us-central1

2. Delete the job schedule

   gcloud scheduler jobs delete schedule-job-inspirational-morning --location=us-central1

3. Delete the topic

   gcloud pubsub topics delete topic-inspirational-morning

Reference guides

• tz database Time Zones
• Creating Google Chat webhook