DEV Community

Sandeep Chauhan
Sandeep Chauhan

Posted on

Deploy using Slot

#programming #web3 #gamedev #cairo

Slot is a managed service that provides hosted Katana instances and Torii indexers for Dojo games. This guide covers the complete deployment workflow from authentication to production deployment.

Prerequisites

Ensure you have the latest Dojo version installed:

dojoup
Enter fullscreen mode Exit fullscreen mode

Authentication Setup

Initial Login

First, authenticate with the Slot service:

slot auth login
Enter fullscreen mode Exit fullscreen mode

This will open your browser for authentication. Follow the prompts to complete the login process.

Troubleshooting Authentication

If you encounter issues with old credentials, clear them and try again:

rm ~/Library/Application\ Support/slot/credentials.json
slot auth login
Enter fullscreen mode Exit fullscreen mode

Backend Deployment (Katana)

Initialize Your Project

Start by creating a new Dojo project or navigate to your existing project:

sozo init dojo-starter && cd dojo-starter
Enter fullscreen mode Exit fullscreen mode

Create Katana Deployment

Deploy a Katana instance using Slot:

slot deployments create my-dojo-game katana
Enter fullscreen mode Exit fullscreen mode

Replace my-dojo-game with your preferred deployment name. This command will:

  • Create a new Katana instance
  • Return an RPC endpoint URL
  • Provide unique account credentials

Configure Your Project

After deployment, you'll receive an RPC URL. Update your Scarb.toml configuration:

[tool.dojo.env]
rpc_url = "https://api.cartridge.gg/x/your-deployment-id/katana"
account_address = "0x..."  # From Katana deployment logs
private_key = "0x..."      # From Katana deployment logs
world_address = "0x..."    # Will be set after migration
Enter fullscreen mode Exit fullscreen mode

Note: Each Katana slot generates unique account seeds, so you'll need to update these values for each deployment.

Monitor Katana Logs

Stream logs from your Katana deployment in a separate terminal:

slot deployments logs my-dojo-game katana -f
Enter fullscreen mode Exit fullscreen mode

This will show real-time logs and display the account information you need for configuration.

Build and Migrate

Build your Dojo project:

sozo build
Enter fullscreen mode Exit fullscreen mode

Migrate your contracts to the deployed Katana instance:

sozo migrate
Enter fullscreen mode Exit fullscreen mode

Upon successful migration, you'll see output similar to:

✅ Successfully migrated World at address: 0x1234567890abcdef...
Enter fullscreen mode Exit fullscreen mode

Save this WORLD_ADDRESS as you'll need it for Torii deployment.

Torii Indexer Deployment

Deploy Torii Instance

Deploy a Torii indexer for your world using the world address from the previous step:

slot deployments create my-dojo-game torii \
  --world 0x1234567890abcdef... \
  --rpc https://api.cartridge.gg/x/your-deployment-id/katana \
  --start-block 1
Enter fullscreen mode Exit fullscreen mode

Parameter explanations:

  • --world: The world contract address from your migration
  • --rpc: Your Katana RPC endpoint
  • --start-block: Block number to start indexing from (use 1 for complete history)

After successful deployment, you'll receive:

  • GraphQL endpoint for queries
  • gRPC endpoint for real-time subscriptions

Monitor Torii Logs

Stream logs from your Torii deployment:

slot deployments logs my-dojo-game torii -f
Enter fullscreen mode Exit fullscreen mode

This helps verify that the indexer is properly syncing with your world state.

Verification and Testing

Test Your Deployment

  1. Verify Katana is running: Check that your RPC endpoint responds to requests
  2. Confirm world deployment: Ensure your contracts are properly migrated
  3. Test Torii indexing: Verify that GraphQL queries return expected data

Access Your Services

Your deployed services will be available at:

  • Katana RPC: https://api.cartridge.gg/x/your-deployment-id/katana
  • Torii GraphQL: https://api.cartridge.gg/x/your-deployment-id/torii/graphql
  • Torii gRPC: https://api.cartridge.gg/x/your-deployment-id/torii

Managing Deployments

List Deployments

View all your active deployments:

slot deployments list
Enter fullscreen mode Exit fullscreen mode

Delete Deployments

Remove deployments when no longer needed:

slot deployments delete my-dojo-game katana
slot deployments delete my-dojo-game torii
Enter fullscreen mode Exit fullscreen mode

Best Practices

  1. Consistent Naming: Use the same DEPLOYMENT_NAME for both Katana and Torii instances
  2. Monitor Logs: Keep log streams open during initial deployment to catch issues early
  3. Update Configuration: Always update your local configuration files with new endpoints
  4. Version Control: Don't commit private keys or sensitive configuration to version control

Troubleshooting

Common Issues

  1. Authentication failures: Clear credentials and re-authenticate
  2. Migration errors: Verify RPC URL and account configuration
  3. Torii sync issues: Check that world address and RPC URL are correct

Getting Help

If you encounter issues:

  1. Check deployment logs for error messages
  2. Verify all configuration values are correct
  3. Ensure you're using the latest Dojo version

🎉 Congratulations! You now have a fully deployed Dojo game with both Katana sequencer and Torii indexer running on Slot's managed infrastructure. Your game is ready for development and testing with persistent, hosted services.

Top comments (0)