Backend Integration Path

Connect your backend services to the Cardano blockchain. This learning path teaches you how to detect payments, send transactions, and react to on-chain events in real-time.

Who This Path Is For

The Core Pattern

Every use case in this path follows the same fundamental pattern:

1. Watch - Monitor the blockchain for relevant events (payments to your addresses)
2. Process - Validate and store the data in your database
3. React - Trigger actions in your application (fulfill orders, credit accounts)
4. Confirm - Wait for sufficient confirmations before finalizing

What Makes Blockchain Integration Different

Challenge 1: No Webhooks

Blockchains don't push notifications to your server. You must either:

• Poll - Periodically query for changes (simple but inefficient)
• Stream - Maintain a WebSocket connection for real-time updates (efficient but more complex)

This path teaches you the streaming approach using chain synchronization.

Challenge 2: Eventual Consistency

Unlike traditional databases, blockchain state can temporarily "revert" due to chain reorganizations (rollbacks). A transaction that appeared confirmed might disappear if a competing block wins.

Your system must handle this gracefully - we'll show you how.

Challenge 3: Confirmation Latency

Transactions aren't instant. On Cardano:

You'll learn how to show pending states to users while waiting for confirmation.

Prerequisites

Before starting, you should have:

• Backend development experience (any language)
• Basic understanding of databases and transactions
• Familiarity with WebSockets
• A Nacho API key from your dashboard

Path Overview

Code Examples in 4 Languages

All tutorials include complete, runnable examples in:

Estimated Time

Ready to Start?

Start with Architecture