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querier.go
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/
querier.go
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package keeper
import (
sdk "github.com/ci123chain/ci123chain/pkg/abci/types"
sdkerrors "github.com/ci123chain/ci123chain/pkg/abci/types/errors"
"github.com/ci123chain/ci123chain/pkg/ibc/application/transfer/types"
abci "github.com/tendermint/tendermint/abci/types"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
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, sdkerrors.ErrUnknownRequest
}
}
}
// ClientState implements the IBC QueryServer interface
func queryDenomTraces(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) ([]byte, error) {
var reqDenomTraces types.QueryDenomTracesRequest
if err := types.IBCTransferCdc.UnmarshalJSON(req.Data, &reqDenomTraces); err != nil {
return nil, status.Error(codes.InvalidArgument, err.Error())
}
resp, err := keeper.DenomTraces(ctx, &reqDenomTraces)
respbz := types.IBCTransferCdc.MustMarshalJSON(resp)
return respbz, err
}