Using your Deno Edge Server

This directory contains the WebSocket server implementation for Elato AI, built with Deno.

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Prerequisites

• Deno installed on your system
• Network access (for both local development and deployment)

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Running the Server

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Local Development

1. Start the server:
   # Navigate to the server-deno directory
   cd server-deno
   
   # Run the server (replace server.ts with your main file if different)
   deno run -A --env-file=.env main.ts
   
2. Verify the server:
   • The server should be running on port 8000 (default)
   • You should see a message confirming the server is listening

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Production Deployment

1. Deploy to Deno Dash:
   • Create an account on Deno Dash Deploy
   • Create a new project
   • Connect your GitHub repository or upload your server code
   • Deploy to a custom domain (e.g., your-app.deno.dev)
2. Update firmware configuration:
   • In the firmware project, make sure DEV_MODE is NOT defined in Config.cpp
   • The WebSocket server will be set to your Deno Deploy URL
3. Get the Root CA Certificate using terminal:
   • To get the full certificate chain with the root CA:
   openssl s_client -showcerts -connect your-app.deno.dev:443 </dev/null
   
   • Copy the last certificate in the chain (the root CA certificate) including the BEGIN and END lines
   • Paste this into the CA_cert variable in Config.cpp

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Troubleshooting

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Connection Issues

• Ensure your ESP32 device and development computer are on the same network
• Check if any firewalls are blocking port 8000
• Verify your local IP address hasn’t changed (dynamic IPs can change after reconnecting)

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Server Errors

• Check the server logs for error messages
• Ensure Deno has proper permissions to access network resources

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Additional Resources

• Deno Documentation
• Deno Deploy Documentation
• WebSocket API Reference