Google Cloud Setup

Prerequisites

1. A Google Cloud Platform (GCP) account.
2. A Google Cloud project with the Text-to-Speech API enabled.
3. The Google Cloud SDK installed and initialized.
4. Billing enabled on your GCP project.

GCP Vercel Integration

• Follow the GCP Vercel Integration Guide to configure GCP for production deployment.
• Since we are initializing with GCP, we do not need to set GOOGLE_APPLICATION_CREDENTIALS manually.

For local deployment

• Use the Google Cloud SDK Initialization Guide to configure your local environment.
• Ensure you have vercel CLI installed (npm i -g vercel).

Testing

• Our web application is serverless in production. For local development, use the Vercel CLI.

• Run vercel dev in one terminal.

• The local server runs on port 3000 by default. Monitor the vercel dev terminal for POST request logs and potential errors.

• Since we use Vercel, our backend and frontend are hosted at the same URL - localhost:3000.

Common Issues & Fixes

Error: Failed to generate TTS

Ensure that the Text-to-Speech API is enabled in GCP.
Check if the GCP project is properly initialized.

Error: 403: Permission denied

Verify that the IAM permissions for your GCP account include roles/texttospeech.admin.
Run gcloud auth application-default login to authenticate properly.
Run gcloud auth application-default print-access-token to check access token is successfully generated.