61 lines
1.7 KiB
Go
61 lines
1.7 KiB
Go
package keeper
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import (
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/cosmos/cosmos-sdk/codec"
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sdk "github.com/cosmos/cosmos-sdk/types"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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"github.com/cosmos/cosmos-sdk/x/bank/types"
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)
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// NewQuerier returns a new sdk.Keeper instance.
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func NewQuerier(k Keeper) sdk.Querier {
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return func(ctx sdk.Context, path []string, req abci.RequestQuery) ([]byte, error) {
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switch path[0] {
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case types.QueryBalance:
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return queryBalance(ctx, req, k)
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case types.QueryAllBalances:
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return queryAllBalance(ctx, req, k)
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default:
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return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unknown %s query endpoint: %s", types.ModuleName, path[0])
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}
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}
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}
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func queryBalance(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, error) {
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var params types.QueryBalanceParams
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if err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms); err != nil {
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return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
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}
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balance := k.GetBalance(ctx, params.Address, params.Denom)
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bz, err := codec.MarshalJSONIndent(types.ModuleCdc, balance)
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if err != nil {
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return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
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}
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return bz, nil
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}
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func queryAllBalance(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, error) {
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var params types.QueryAllBalancesParams
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if err := types.ModuleCdc.UnmarshalJSON(req.Data, ¶ms); err != nil {
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return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
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}
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balances := k.GetAllBalances(ctx, params.Address)
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bz, err := codec.MarshalJSONIndent(types.ModuleCdc, balances)
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if err != nil {
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return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
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}
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return bz, nil
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}
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