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querier.go
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/
querier.go
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package keeper
import (
msm "github.com/creatachain/augusteum/msm/types"
"github.com/creatachain/creata-sdk/codec"
sdk "github.com/creatachain/creata-sdk/types"
sdkerrors "github.com/creatachain/creata-sdk/types/errors"
"github.com/creatachain/creata-sdk/x/params/types"
"github.com/creatachain/creata-sdk/x/params/types/proposal"
)
// NewQuerier returns a new querier handler for the x/params module.
func NewQuerier(k Keeper, legacyQuerierCdc *codec.LegacyAmino) sdk.Querier {
return func(ctx sdk.Context, path []string, req msm.RequestQuery) ([]byte, error) {
switch path[0] {
case types.QueryParams:
return queryParams(ctx, req, k, legacyQuerierCdc)
default:
return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unknown query path: %s", path[0])
}
}
}
func queryParams(ctx sdk.Context, req msm.RequestQuery, k Keeper, legacyQuerierCdc *codec.LegacyAmino) ([]byte, error) {
var params types.QuerySubspaceParams
if err := legacyQuerierCdc.UnmarshalJSON(req.Data, ¶ms); err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
}
ss, ok := k.GetSubspace(params.Subspace)
if !ok {
return nil, sdkerrors.Wrap(proposal.ErrUnknownSubspace, params.Subspace)
}
rawValue := ss.GetRaw(ctx, []byte(params.Key))
resp := types.NewSubspaceParamsResponse(params.Subspace, params.Key, string(rawValue))
bz, err := codec.MarshalJSONIndent(legacyQuerierCdc, resp)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}