This Cloud Function is designed to handle user verification processes in your application. When a new user is created, a message is published to a Google Cloud Pub/Sub topic, triggering this function. The function then generates a verification token, stores it in the database, and sends a verification email to the user.
Before deploying and using this Cloud Function, ensure that you have:
- Google Cloud SDK installed and configured.
- Access to a Google Cloud project with billing enabled.
- Required Google Cloud services enabled (e.g., Cloud Functions, Cloud Pub/Sub, Cloud SQL).
- Terraform installed, if using Terraform for deployment.
Variables to be set in the Terraform script or environment:
DB_USER: Username for the database access.DB_PASSWORD: Password for the database access.DB_NAME: Name of the database.DB_HOST: Host address of the Cloud SQL instance.MAILGUN_API_KEY: API key for Mailgun to send emails.MAILGUN_DOMAIN: Domain configured in Mailgun for sending emails.DB_CONNECTION_NAME: Connection name of the Cloud SQL instance.
To deploy the function with Terraform, navigate to the directory containing your Terraform scripts and run:
terraform init
terraform apply- The function is triggered by a message on the Google Cloud Pub/Sub topic.
- It decodes the message, which contains the new user's email.
- It connects to the Cloud SQL database and inserts a new verification token.
- Generates a verification link and sends an email to the user through Mailgun.
After deployment, test the function by publishing a message to the associated Pub/Sub topic. Ensure the message format aligns with the expected schema.
Logs for the function execution can be viewed in the Google Cloud Console under Cloud Functions logs.
For any errors or issues:
- Check the logs for detailed error messages.
- Verify all environment variables and dependencies are correctly configured.
- Ensure the Cloud Function has appropriate permissions and roles.