pricefeed

package
v0.8.1 Latest Latest
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 Go to latest Published: Jun 8, 2020 License: Apache-2.0 Imports: 18 Imported by: 1

Documentation

Overview

Package pricefeed allows a group of white-listed oracles to post price information of specific markets that are tracked by the system. For each market, the module computes the median of all posted prices by white-listed oracles and takes that as the current price value.

Index

Constants

View Source 
const (
	EventTypeMarketPriceUpdated = types.EventTypeMarketPriceUpdated
	EventTypeOracleUpdatedPrice = types.EventTypeOracleUpdatedPrice
	EventTypeNoValidPrices      = types.EventTypeNoValidPrices
	AttributeValueCategory      = types.AttributeValueCategory
	AttributeMarketID           = types.AttributeMarketID
	AttributeMarketPrice        = types.AttributeMarketPrice
	AttributeOracle             = types.AttributeOracle
	AttributeExpiry             = types.AttributeExpiry
	ModuleName                  = types.ModuleName
	StoreKey                    = types.StoreKey
	RouterKey                   = types.RouterKey
	QuerierRoute                = types.QuerierRoute
	DefaultParamspace           = types.DefaultParamspace
	TypeMsgPostPrice            = types.TypeMsgPostPrice
	QueryGetParams              = types.QueryGetParams
	QueryMarkets                = types.QueryMarkets
	QueryOracles                = types.QueryOracles
	QueryRawPrices              = types.QueryRawPrices
	QueryPrice                  = types.QueryPrice
	MaxExpiry                   = types.MaxExpiry
)

nolint

Variables

View Source 
var (
	// functions aliases
	NewKeeper                  = keeper.NewKeeper
	NewQuerier                 = keeper.NewQuerier
	RegisterCodec              = types.RegisterCodec
	ErrEmptyInput              = types.ErrEmptyInput
	ErrExpired                 = types.ErrExpired
	ErrNoValidPrice            = types.ErrNoValidPrice
	ErrInvalidMarket           = types.ErrInvalidMarket
	ErrInvalidOracle           = types.ErrInvalidOracle
	NewGenesisState            = types.NewGenesisState
	DefaultGenesisState        = types.DefaultGenesisState
	CurrentPriceKey            = types.CurrentPriceKey
	RawPriceKey                = types.RawPriceKey
	NewCurrentPrice            = types.NewCurrentPrice
	NewPostedPrice             = types.NewPostedPrice
	NewMsgPostPrice            = types.NewMsgPostPrice
	NewParams                  = types.NewParams
	DefaultParams              = types.DefaultParams
	ParamKeyTable              = types.ParamKeyTable
	NewQueryWithMarketIDParams = types.NewQueryWithMarketIDParams

	// variable aliases
	ModuleCdc          = types.ModuleCdc
	CurrentPricePrefix = types.CurrentPricePrefix
	RawPriceFeedPrefix = types.RawPriceFeedPrefix
	KeyMarkets         = types.KeyMarkets
	DefaultMarkets     = types.DefaultMarkets
)

nolint

Functions

func EndBlocker 

func EndBlocker(ctx sdk.Context, k Keeper)

EndBlocker updates the current pricefeed

func HandleMsgPostPrice 

func HandleMsgPostPrice(
	ctx sdk.Context,
	k Keeper,
	msg MsgPostPrice) (*sdk.Result, error)

HandleMsgPostPrice handles prices posted by oracles

func InitGenesis 

func InitGenesis(ctx sdk.Context, keeper Keeper, gs GenesisState)

InitGenesis sets distribution information for genesis.

func NewHandler 

func NewHandler(k Keeper) sdk.Handler

NewHandler handles all pricefeed type messages

Types

type AppModule 

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

AppModule app module type

func NewAppModule 

func NewAppModule(keeper Keeper, accountKeeper auth.AccountKeeper) AppModule

NewAppModule creates a new AppModule object

func (AppModule) BeginBlock 

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

BeginBlock module begin-block

func (AppModule) EndBlock 

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

EndBlock module end-block

func (AppModule) ExportGenesis 

func (am AppModule) ExportGenesis(ctx sdk.Context) json.RawMessage

ExportGenesis module export genesis

func (AppModule) InitGenesis 

func (am AppModule) InitGenesis(ctx sdk.Context, data json.RawMessage) []abci.ValidatorUpdate

InitGenesis module init-genesis

func (AppModule) Name 

func (AppModule) Name() string

Name module name

func (AppModule) NewHandler 

func (am AppModule) NewHandler() sdk.Handler

NewHandler module handler

func (AppModule) NewQuerierHandler 

func (am AppModule) NewQuerierHandler() sdk.Querier

NewQuerierHandler module querier

func (AppModule) QuerierRoute 

func (AppModule) QuerierRoute() string

QuerierRoute module querier route name

func (AppModule) RegisterInvariants 

func (AppModule) RegisterInvariants(_ sdk.InvariantRegistry)

RegisterInvariants register module invariants

func (AppModule) Route 

func (AppModule) Route() string

Route module message route name

func (AppModule) WeightedOperations added in v0.8.0 

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

WeightedOperations returns the all the price feed module operations with their respective weights.

type AppModuleBasic 

type AppModuleBasic struct{}

AppModuleBasic app module basics object

func (AppModuleBasic) DefaultGenesis 

func (AppModuleBasic) DefaultGenesis() json.RawMessage

DefaultGenesis default genesis state

func (AppModuleBasic) GenerateGenesisState added in v0.8.0 

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

GenerateGenesisState creates a randomized GenState of the price feed module

func (AppModuleBasic) GetQueryCmd 

func (AppModuleBasic) GetQueryCmd(cdc *codec.Codec) *cobra.Command

GetQueryCmd get the root query command of this module

func (AppModuleBasic) GetTxCmd 

func (AppModuleBasic) GetTxCmd(cdc *codec.Codec) *cobra.Command

GetTxCmd get the root tx command of this module

func (AppModuleBasic) Name 

func (AppModuleBasic) Name() string

Name get module name

func (AppModuleBasic) ProposalContents added in v0.8.0 

func (AppModuleBasic) ProposalContents(_ module.SimulationState) []sim.WeightedProposalContent

ProposalContents doesn't return any content functions for governance proposals.

func (AppModuleBasic) RandomizedParams added in v0.8.0 

func (AppModuleBasic) RandomizedParams(r *rand.Rand) []sim.ParamChange

RandomizedParams returns nil because price feed has no params.

func (AppModuleBasic) RegisterCodec 

func (AppModuleBasic) RegisterCodec(cdc *codec.Codec)

RegisterCodec register module codec

func (AppModuleBasic) RegisterRESTRoutes 

func (AppModuleBasic) RegisterRESTRoutes(ctx context.CLIContext, rtr *mux.Router)

RegisterRESTRoutes register rest routes

func (AppModuleBasic) RegisterStoreDecoder added in v0.8.0 

func (AppModuleBasic) RegisterStoreDecoder(sdr sdk.StoreDecoderRegistry)

RegisterStoreDecoder registers a decoder for price feed module's types

func (AppModuleBasic) ValidateGenesis 

func (AppModuleBasic) ValidateGenesis(bz json.RawMessage) error

ValidateGenesis module validate genesis

type CurrentPrice 

type CurrentPrice = types.CurrentPrice

nolint

type GenesisState 

type GenesisState = types.GenesisState

nolint

func ExportGenesis 

func ExportGenesis(ctx sdk.Context, keeper Keeper) GenesisState

ExportGenesis returns a GenesisState for a given context and keeper.

type Keeper 

type Keeper = keeper.Keeper

nolint

type Market 

type Market = types.Market

nolint

type Markets 

type Markets = types.Markets

nolint

type MsgPostPrice 

type MsgPostPrice = types.MsgPostPrice

nolint

type Params 

type Params = types.Params

nolint

type PostedPrice 

type PostedPrice = types.PostedPrice

nolint

type PostedPrices added in v0.8.0 

type PostedPrices = types.PostedPrices

nolint

type QueryWithMarketIDParams 

type QueryWithMarketIDParams = types.QueryWithMarketIDParams

nolint

type SortDecs 

type SortDecs = types.SortDecs

nolint

Source Files

View all Source files

Directories

Path Synopsis
client
cli
rest

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