sequencers

README

Sequencers

Abstract

The Sequencers module provides a method to initialize a sequencer from Dymint for rewards. Unlike traditional Cosmos SDK chains, the proposer's source of truth is not the Cosmos SDK but the hub. Dymint is responsible for communicating with the hub and conveying the current proposer's information to the RDK.

Overview

Currently, we use the ABCI InitChainer method. There are two challenges we encounter when updating a sequencer, as opposed to when creating a validator:

1. `InitChainer` expects the `validatorUpdates` to be identical to what it received from Dymint.
2. We need a method to set the operator address, which is the address used for sequencer rewards.

To address these challenges, we proceed as follows:

1. Upon `InitChainer`, we invoke `SetDymintSequencers` and create a dummy sequencer object with the consensus public key and power obtained from the `validatorUpdates`.
2. Upon `InitGenesis`, we construct a validator-like object where the operator address is specified in the genesis file, and the consensus public key and power are derived from the dummy sequencer object.
3. Finally, we delete the dummy sequencer object.

Subsequently, we have a sequencer structure that implements the stakingtypes.Validator interface, which is utilized for rewards.

Documentation

Index

• type AppModule
  • func NewAppModule(cdc codec.Codec, keeper keeper.Keeper) AppModule
  • func (am AppModule) BeginBlock(ctx sdk.Context, _ abci.RequestBeginBlock)
  • func (AppModule) ConsensusVersion() uint64
  • func (am AppModule) EndBlock(ctx sdk.Context, _ abci.RequestEndBlock) []abci.ValidatorUpdate
  • func (am AppModule) ExportGenesis(ctx sdk.Context, cdc codec.JSONCodec) json.RawMessage
  • func (AppModule) GenerateGenesisState(simState *module.SimulationState)
  • func (am AppModule) InitGenesis(ctx sdk.Context, cdc codec.JSONCodec, gs json.RawMessage) []abci.ValidatorUpdate
  • func (am AppModule) LegacyQuerierHandler(legacyQuerierCdc *codec.LegacyAmino) sdk.Querier
  • func (am AppModule) Name() string
  • func (AppModule) ProposalContents(_ module.SimulationState) []simtypes.WeightedProposalContent
  • func (AppModule) QuerierRoute() string
  • func (am AppModule) RandomizedParams(_ *rand.Rand) []simtypes.ParamChange
  • func (am AppModule) RegisterInvariants(_ sdk.InvariantRegistry)
  • func (am AppModule) RegisterServices(cfg module.Configurator)
  • func (am AppModule) RegisterStoreDecoder(_ sdk.StoreDecoderRegistry)
  • func (am AppModule) Route() sdk.Route
  • func (am AppModule) WeightedOperations(simState module.SimulationState) []simtypes.WeightedOperation
• type AppModuleBasic
  • func (AppModuleBasic) DefaultGenesis(cdc codec.JSONCodec) json.RawMessage
  • func (AppModuleBasic) GetQueryCmd() *cobra.Command
  • func (a AppModuleBasic) GetTxCmd() *cobra.Command
  • func (AppModuleBasic) Name() string
  • func (AppModuleBasic) RegisterGRPCGatewayRoutes(clientCtx client.Context, mux *runtime.ServeMux)
  • func (a AppModuleBasic) RegisterInterfaces(reg cdctypes.InterfaceRegistry)
  • func (AppModuleBasic) RegisterLegacyAminoCodec(cdc *codec.LegacyAmino)
  • func (AppModuleBasic) ValidateGenesis(cdc codec.JSONCodec, config client.TxEncodingConfig, bz json.RawMessage) error

Types

type AppModule

type AppModule struct {
	AppModuleBasic
	// contains filtered or unexported fields
}

AppModule implements the AppModule interface for the capability module.

func NewAppModule

func NewAppModule(
	cdc codec.Codec,
	keeper keeper.Keeper,
) AppModule

func (AppModule) BeginBlock

func (am AppModule) BeginBlock(ctx sdk.Context, _ abci.RequestBeginBlock)

BeginBlock executes all ABCI BeginBlock logic respective to the capability module.

func (AppModule) ConsensusVersion

func (AppModule) ConsensusVersion() uint64

ConsensusVersion implements ConsensusVersion.

func (AppModule) EndBlock

func (am AppModule) EndBlock(ctx sdk.Context, _ abci.RequestEndBlock) []abci.ValidatorUpdate

EndBlock executes all ABCI EndBlock logic respective to the capability module. It returns no validator updates.

func (AppModule) ExportGenesis

func (am AppModule) ExportGenesis(ctx sdk.Context, cdc codec.JSONCodec) json.RawMessage

ExportGenesis returns the capability module's exported genesis state as raw JSON bytes.

func (AppModule) GenerateGenesisState

func (AppModule) GenerateGenesisState(simState *module.SimulationState)

GenerateGenesisState creates a randomized GenState of the module

func (AppModule) InitGenesis

func (am AppModule) InitGenesis(ctx sdk.Context, cdc codec.JSONCodec, gs json.RawMessage) []abci.ValidatorUpdate

InitGenesis performs the capability module's genesis initialization It returns the sequencers set by dymint as the validator updates

func (AppModule) LegacyQuerierHandler

func (am AppModule) LegacyQuerierHandler(legacyQuerierCdc *codec.LegacyAmino) sdk.Querier

LegacyQuerierHandler returns the capability module's Querier.

func (AppModule) Name

func (am AppModule) Name() string

Name returns the capability module's name.

func (AppModule) ProposalContents

func (AppModule) ProposalContents(_ module.SimulationState) []simtypes.WeightedProposalContent

ProposalContents doesn't return any content functions for governance proposals

func (AppModule) QuerierRoute

func (AppModule) QuerierRoute() string

QuerierRoute returns the capability module's query routing key.

func (AppModule) RandomizedParams

func (am AppModule) RandomizedParams(_ *rand.Rand) []simtypes.ParamChange

RandomizedParams creates randomized param changes for the simulator

func (AppModule) RegisterInvariants

func (am AppModule) RegisterInvariants(_ sdk.InvariantRegistry)

RegisterInvariants registers the capability module's invariants.

func (AppModule) RegisterServices

func (am AppModule) RegisterServices(cfg module.Configurator)

RegisterServices registers a GRPC query service to respond to the module-specific GRPC queries.

func (AppModule) RegisterStoreDecoder

func (am AppModule) RegisterStoreDecoder(_ sdk.StoreDecoderRegistry)

RegisterStoreDecoder registers a decoder

func (AppModule) Route

func (am AppModule) Route() sdk.Route

Route returns the capability module's message routing key.

func (AppModule) WeightedOperations

func (am AppModule) WeightedOperations(simState module.SimulationState) []simtypes.WeightedOperation

WeightedOperations returns the all the gov module operations with their respective weights.

type AppModuleBasic

type AppModuleBasic struct{}

AppModuleBasic implements the AppModuleBasic interface for the capability module.

func (AppModuleBasic) DefaultGenesis

func (AppModuleBasic) DefaultGenesis(cdc codec.JSONCodec) json.RawMessage

DefaultGenesis returns the capability module's default genesis state.

func (AppModuleBasic) GetQueryCmd

func (AppModuleBasic) GetQueryCmd() *cobra.Command

GetQueryCmd returns the capability module's root query command.

func (AppModuleBasic) GetTxCmd

func (a AppModuleBasic) GetTxCmd() *cobra.Command

GetTxCmd returns the capability module's root tx command.

func (AppModuleBasic) Name

func (AppModuleBasic) Name() string

Name returns the capability module's name.

func (AppModuleBasic) RegisterGRPCGatewayRoutes

func (AppModuleBasic) RegisterGRPCGatewayRoutes(clientCtx client.Context, mux *runtime.ServeMux)

RegisterGRPCGatewayRoutes registers the gRPC Gateway routes for the module.

func (AppModuleBasic) RegisterInterfaces

func (a AppModuleBasic) RegisterInterfaces(reg cdctypes.InterfaceRegistry)

func (AppModuleBasic) RegisterLegacyAminoCodec

func (AppModuleBasic) RegisterLegacyAminoCodec(cdc *codec.LegacyAmino)

func (AppModuleBasic) ValidateGenesis

func (AppModuleBasic) ValidateGenesis(cdc codec.JSONCodec, config client.TxEncodingConfig, bz json.RawMessage) error

ValidateGenesis performs genesis state validation for the capability module.