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querier.go
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querier.go
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// Copyright 2021 ChainSafe Systems
// SPDX-License-Identifier: MIT
package keeper
import (
"strconv"
"github.com/ChainSafe/chainlink-cosmos/x/chainlink/types"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/cosmos/cosmos-sdk/types/query"
abci "github.com/tendermint/tendermint/abci/types"
)
// Legacy querier for backwards compatibility
const defaultPageLimit = 10
func NewQuerier(k Keeper, legacyQuerierCdc *codec.LegacyAmino) sdk.Querier {
return func(ctx sdk.Context, path []string, req abci.RequestQuery) ([]byte, error) {
var (
res []byte
err error
)
switch path[0] {
case types.QueryRoundFeedData:
return getRoundFeedData(ctx, path, k, legacyQuerierCdc)
case types.QueryLatestFeedData:
return latestRoundFeedData(ctx, path, k, legacyQuerierCdc)
case types.QueryModuleOwner:
return getModuleOwners(ctx, path, k, legacyQuerierCdc)
case types.QueryFeedInfo:
return getFeedInfo(ctx, path, k, legacyQuerierCdc)
case types.QueryAccountInfo:
return getAccountInfo(ctx, path, k, legacyQuerierCdc)
case types.QueryFeedRewardStrategy:
return getFeedRewardStrategy(ctx, path, k, legacyQuerierCdc)
default:
err = sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unknown %s query endpoint: %s", types.ModuleName, path[0])
}
return res, err
}
}
func getRoundFeedData(ctx sdk.Context, path []string, keeper Keeper, legacQuerierCdc *codec.LegacyAmino) ([]byte, error) {
if len(path) < 3 {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidRequest,
"Insufficient parameters, at least 3 parameters is required")
}
roundId, err := strconv.ParseUint(path[1], 10, 64)
if err != nil {
return nil, err
}
feedId := path[2]
req := &types.GetRoundDataRequest{
FeedId: feedId,
RoundId: roundId,
Pagination: &query.PageRequest{Limit: defaultPageLimit},
}
msgs, err := keeper.GetRoundFeedDataByFilter(ctx, req)
if err != nil {
return nil, err
}
bz, err := codec.MarshalJSONIndent(legacQuerierCdc, msgs)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}
func latestRoundFeedData(ctx sdk.Context, path []string, keeper Keeper, legacQuerierCdc *codec.LegacyAmino) ([]byte, error) {
if len(path) < 2 {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidRequest,
"Insufficient parameters, at least 2 parameters is required")
}
feedId := path[1]
req := &types.GetLatestRoundDataRequest{
FeedId: feedId,
}
msgs, err := keeper.GetLatestRoundFeedDataByFilter(ctx, req)
if err != nil {
return nil, err
}
bz, err := codec.MarshalJSONIndent(legacQuerierCdc, msgs)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}
func getModuleOwners(ctx sdk.Context, path []string, keeper Keeper, legacQuerierCdc *codec.LegacyAmino) ([]byte, error) {
if len(path) < 1 {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidRequest,
"Insufficient parameters, at least 1 parameters is required")
}
resp := keeper.GetModuleOwnerList(ctx)
bz, err := codec.MarshalJSONIndent(legacQuerierCdc, resp)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}
func getFeedInfo(ctx sdk.Context, path []string, keeper Keeper, legacQuerierCdc *codec.LegacyAmino) ([]byte, error) {
if len(path) < 2 {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidRequest,
"Insufficient parameters, at least 2 parameters is required")
}
feedId := path[1]
resp := keeper.GetFeed(ctx, feedId)
if resp.Feed == nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrKeyNotFound, "No feed found")
}
bz, err := codec.MarshalJSONIndent(legacQuerierCdc, resp)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}
func getAccountInfo(ctx sdk.Context, path []string, keeper Keeper, legacQuerierCdc *codec.LegacyAmino) ([]byte, error) {
if len(path) < 2 {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidRequest,
"Insufficient parameters, at least 2 parameters is required")
}
accAddrString := path[1]
accAddr, err := sdk.AccAddressFromBech32(accAddrString)
if err != nil {
return nil, err
}
req := &types.GetAccountRequest{AccountAddress: accAddr}
resp := keeper.GetAccount(ctx, req)
bz, err := codec.MarshalJSONIndent(legacQuerierCdc, resp)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}
func getFeedRewardStrategy(ctx sdk.Context, path []string, keeper Keeper, legacQuerierCdc *codec.LegacyAmino) ([]byte, error) {
if len(path) < 1 {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidRequest,
"Insufficient parameters, at least 1 parameters is required")
}
resp := keeper.GetRegisteredFeedRewardStrategies(ctx)
bz, err := codec.MarshalJSONIndent(legacQuerierCdc, resp)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
}
return bz, nil
}