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querier.go
37 lines (29 loc) · 935 Bytes
/
querier.go
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package keepers
import (
abci "github.com/tendermint/tendermint/abci/types"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/coinexchain/cet-sdk/modules/incentive/internal/types"
)
const (
QueryParameters = "parameters"
)
// creates a querier for incentive REST endpoints
func NewQuerier(keeper Keeper) sdk.Querier {
return func(ctx sdk.Context, path []string, req abci.RequestQuery) (res []byte, err sdk.Error) {
switch path[0] {
case QueryParameters:
return queryParameters(ctx, keeper)
default:
return nil, sdk.ErrUnknownRequest("query symbol : " + path[0])
}
}
}
func queryParameters(ctx sdk.Context, k Keeper) ([]byte, sdk.Error) {
params := k.GetParams(ctx)
res, err := codec.MarshalJSONIndent(types.ModuleCdc, params)
if err != nil {
return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error()))
}
return res, nil
}