06-handlers.md

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Handlers

For a message to reach a keeper, it has to go through a message server handler. A handler is where you can apply logic to allow or deny a message to succeed.

• If you're familiar with the Model-view-controller (MVC) software architecture, the keeper is a bit like the model, and the handler is a bit like the controller.

• If you're familiar with React or Vue architecture, the keeper is a bit like the reducer store and the handler is a bit like actions.

Three message types were automatically added to the message server:

• MsgSubmitScavenge

• MsgCommitSolution

• MsgRevealSolution

Each message, when handled, calls the appropriate keeper method that is responsible for committing changes to the store.