5 posts tagged with "delegation"

This is part one of a three-part series on making on-chain wallets feel like normal apps. Part one is the foundation: a device-specific key-pair that a player's wallet delegates signing to, so an app can submit actions on their behalf without a pop-up every time. Part two adds social login with a 2-of-3 secret, and part three adds biometric unlock - both build on the key-pair described here.

This is a Cardano capability first: it works with the standard Cardano browser wallets (Lace, Eternl, Nami, NuFi), and the same code works across the other chains EffectStream supports.

In Part 1 we covered how EffectStream indexes delegation changes. In Part 2 we walked through the state machine that writes delegation events to PostgreSQL. Now we'll build on that foundation: a custom Batcher that reads delegation state from the database and decides whether to accept or reject user transactions based on which pool they're delegating to.

This is the key use case for stake pool operators: free transactions for your delegators. The SPO runs a batcher that covers gas fees, but only for users delegating to their pool.

In Part 1 through Part 3 we built a stack that observes Cardano delegation - index the certificates, persist them, gate user inputs on pool membership. The application reads delegation; delegation does not read the application. There is a more ambitious place to put stake pools, though: at the consensus layer of a chain itself. That is where Midnight lives. Once you go there, "react to delegation" stops being a feature flag inside a game and starts being block production for an entire ecosystem of games.

A step-by-step walkthrough of how the EffectStream cardano-delegation template works internally. We'll trace the full path from raw Cardano blocks to application state, covering the config, primitive, grammar, state machine, database, and API layers.

Cardano's stake pool ecosystem has millions of ADA delegated across hundreds of pools, but delegation has always been a one-way relationship: delegators earn rewards, and that's it. What if games and apps could react to where you delegate? What if stake pool operators could offer in-game benefits to their delegators? EffectStream now makes this possible with a new PoolDelegation primitive that streams delegation changes in real-time.