Callback Module

See ICallbackModule.sol for more details.

1. Introduction

The Callback Module is a finality module that allows users to call a function on a contract as a result of a request being finalized. It is useful to notify a contract about the outcome of a request.

2. Contract Details

Key Methods

• decodeRequestData: Decodes request parameters.
• finalizeRequest: Executing the callback call on the target.

Request Parameters

• target: The target address for the callback.
• data: The calldata forwarded to the target.

3. Key Mechanisms & Concepts

As any finality module, the CallbackModule implements the finalizeRequest function which executes the chosen function with the given parameters on the target contract.

4. Gotchas

• The success of the callback call in finalizeRequest is purposely not checked, specifying a function or parameters that lead to a revert will not stop the request from being finalized.