0g-chain/x/pricefeed/keeper/querier.go

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package keeper
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import (
abci "github.com/tendermint/tendermint/abci/types"
errorsmod "cosmossdk.io/errors"
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"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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"github.com/kava-labs/kava/x/pricefeed/types"
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)
// NewQuerier is the module level router for state queries
func NewQuerier(keeper Keeper, legacyQuerierCdc *codec.LegacyAmino) sdk.Querier {
return func(ctx sdk.Context, path []string, req abci.RequestQuery) (res []byte, err error) {
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switch path[0] {
case types.QueryPrice:
return queryPrice(ctx, req, keeper, legacyQuerierCdc)
case types.QueryPrices:
return queryPrices(ctx, req, keeper, legacyQuerierCdc)
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case types.QueryRawPrices:
return queryRawPrices(ctx, req, keeper, legacyQuerierCdc)
case types.QueryOracles:
return queryOracles(ctx, req, keeper, legacyQuerierCdc)
case types.QueryMarkets:
return queryMarkets(ctx, req, keeper, legacyQuerierCdc)
case types.QueryGetParams:
return queryGetParams(ctx, req, keeper, legacyQuerierCdc)
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default:
return nil, errorsmod.Wrapf(sdkerrors.ErrUnknownRequest, "unknown %s query endpoint", types.ModuleName)
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}
}
}
func queryPrice(ctx sdk.Context, req abci.RequestQuery, keeper Keeper, legacyQuerierCdc *codec.LegacyAmino) (res []byte, sdkErr error) {
var requestParams types.QueryWithMarketIDParams
err := legacyQuerierCdc.UnmarshalJSON(req.Data, &requestParams)
if err != nil {
return nil, errorsmod.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
}
_, found := keeper.GetMarket(ctx, requestParams.MarketID)
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if !found {
return nil, errorsmod.Wrap(types.ErrAssetNotFound, requestParams.MarketID)
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}
currentPrice, sdkErr := keeper.GetCurrentPrice(ctx, requestParams.MarketID)
if sdkErr != nil {
return nil, sdkErr
}
bz, err := codec.MarshalJSONIndent(legacyQuerierCdc, currentPrice)
if err != nil {
return nil, errorsmod.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
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}
return bz, nil
}
func queryPrices(ctx sdk.Context, req abci.RequestQuery, keeper Keeper, legacyQuerierCdc *codec.LegacyAmino) (res []byte, sdkErr error) {
currentPrices := keeper.GetCurrentPrices(ctx)
// Filter out invalid markets without a price
var validCurrentPrices types.CurrentPrices
for _, cp := range currentPrices {
if cp.MarketID != "" {
validCurrentPrices = append(validCurrentPrices, types.CurrentPrice(cp))
}
}
bz, err := codec.MarshalJSONIndent(legacyQuerierCdc, validCurrentPrices)
if err != nil {
return nil, errorsmod.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}
func queryRawPrices(ctx sdk.Context, req abci.RequestQuery, keeper Keeper, legacyQuerierCdc *codec.LegacyAmino) (res []byte, sdkErr error) {
var requestParams types.QueryWithMarketIDParams
err := legacyQuerierCdc.UnmarshalJSON(req.Data, &requestParams)
if err != nil {
return nil, errorsmod.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
}
_, found := keeper.GetMarket(ctx, requestParams.MarketID)
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if !found {
return nil, errorsmod.Wrap(types.ErrAssetNotFound, requestParams.MarketID)
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}
rawPrices := keeper.GetRawPrices(ctx, requestParams.MarketID)
bz, err := codec.MarshalJSONIndent(legacyQuerierCdc, rawPrices)
if err != nil {
return nil, errorsmod.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
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}
return bz, nil
}
func queryOracles(ctx sdk.Context, req abci.RequestQuery, keeper Keeper, legacyQuerierCdc *codec.LegacyAmino) (res []byte, sdkErr error) {
var requestParams types.QueryWithMarketIDParams
err := legacyQuerierCdc.UnmarshalJSON(req.Data, &requestParams)
if err != nil {
return nil, errorsmod.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
}
oracles, err := keeper.GetOracles(ctx, requestParams.MarketID)
if err != nil {
return nil, errorsmod.Wrap(types.ErrAssetNotFound, requestParams.MarketID)
}
bz, err := codec.MarshalJSONIndent(legacyQuerierCdc, oracles)
if err != nil {
return nil, errorsmod.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}
func queryMarkets(ctx sdk.Context, req abci.RequestQuery, keeper Keeper, legacyQuerierCdc *codec.LegacyAmino) (res []byte, sdkErr error) {
markets := keeper.GetMarkets(ctx)
bz, err := codec.MarshalJSONIndent(legacyQuerierCdc, markets)
if err != nil {
return nil, errorsmod.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
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}
return bz, nil
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}
// query params in the pricefeed store
func queryGetParams(ctx sdk.Context, req abci.RequestQuery, keeper Keeper, legacyQuerierCdc *codec.LegacyAmino) ([]byte, error) {
params := keeper.GetParams(ctx)
// Encode results
bz, err := codec.MarshalJSONIndent(legacyQuerierCdc, params)
if err != nil {
return nil, errorsmod.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}