Configuring Pub/Sub
Navigate to Pub/Sub > Topics on the dashboard for your Google Cloud project, then press + CREATE TOPIC.
Choose a Topic ID, ensure that Add a default subscription is selected, then press CREATE.
Copy the Topic name of your newly created topic, open the .env file in the cloned repository's files, and paste it as the gcloud_topic_name environment variable value.
Next, select the subscription listed under your newly created topic, and press EDIT.
Set Delivery type to Push, and set the Endpoint URL to the base URL you will be hosting your instance of Enotify's website on, followed by the /gmail/push route as well as the ?token=SOME_RANDOM_TOKEN query parameter. In this example we are using https://example.com as our base URL, so our Endpoint URL would be https://example.com/gmail/push?token=SOME_RANDOM_TOKEN.
Be sure to replace SOME_RANDOM_TOKEN with a long, randomly generated string, then copy it to your clipboard. Open the .env file in the cloned repository's files, and paste your randomly generated string as the gmail_push_route_token environment variable value.
Make sure Enable authentication is checked, then select an available service account from the Service account dropdown.
Set Message retention duration to 1 Days, 0 Hours, and 0 Minutes.
You will be billed for messages retained for any period longer than 24 hours!
Under Expiration period, select Never expire.
Set the Retry policy to Retry after exponential backoff delay, with a range of 25 - 600, and then press UPDATE.
Congrats! Your Google Cloud project is now setup for to be used by Enotify!