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querier.go
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/
querier.go
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package keeper
import (
"github.com/okex/exchain/libs/cosmos-sdk/codec"
sdk "github.com/okex/exchain/libs/cosmos-sdk/types"
sdkerrors "github.com/okex/exchain/libs/cosmos-sdk/types/errors"
"github.com/okex/exchain/libs/ibc-go/modules/apps/transfer/types"
abci "github.com/okex/exchain/libs/tendermint/abci/types"
)
// NewQuerier creates a querier for staking REST endpoints
func NewQuerier(k Keeper) sdk.Querier {
return func(ctx sdk.Context, path []string, req abci.RequestQuery) (res []byte, err error) {
switch path[0] {
case types.QueryDenomTraces:
return queryDenomTraces(ctx, req, k)
default:
return nil, types.ErrUnexpectedEndOfGroupTransfer
}
}
}
func queryDenomTraces(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, error) {
var params types.QueryDenomTracesRequest
err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
}
//delegationResps, err := k.DelegatorDelegations(ctx, ¶ms)
denomTracesResp, err := k.DenomTraces(sdk.WrapSDKContext(ctx), ¶ms)
if denomTracesResp == nil {
denomTracesResp = &types.QueryDenomTracesResponse{}
}
res, err := codec.MarshalJSONIndent(types.ModuleCdc, denomTracesResp)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return res, nil
}