2023-09-21 09:15:41 +00:00

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PreBlocker

:::note Synopsis PreBlocker is optional method module developers can implement in their module. They will be triggered before BeginBlock. :::

:::note Pre-requisite Readings

:::

There are two semantics around the new lifecycle method:

It runs before the BeginBlocker of all modules
It can modify consensus parameters in storage, and signal the caller through the return value.

When it returns ConsensusParamsChanged=true, the caller must refresh the consensus parameter in the deliver context:

app.finalizeBlockState.ctx = app.finalizeBlockState.ctx.WithConsensusParams(app.GetConsensusParams())

The new ctx must be passed to all the other lifecycle methods.