frostfs-node/pkg/morph/client/balance/balanceOf.go
Evgenii Stratonikov 6f50fefbea [#625] client/balance: remove intermediate wrapper
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2022-02-08 09:43:54 +03:00

36 lines
1 KiB
Go

package balance
import (
"fmt"
"math/big"
"github.com/nspcc-dev/neo-go/pkg/encoding/address"
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
"github.com/nspcc-dev/neofs-sdk-go/owner"
)
// BalanceOf receives the amount of funds in the client's account
// through the Balance contract call, and returns it.
func (c *Client) BalanceOf(id *owner.ID) (*big.Int, error) {
h, err := address.StringToUint160(id.String())
if err != nil {
return nil, err
}
invokePrm := client.TestInvokePrm{}
invokePrm.SetMethod(balanceOfMethod)
invokePrm.SetArgs(h.BytesBE())
prms, err := c.client.TestInvoke(invokePrm)
if err != nil {
return nil, fmt.Errorf("could not perform test invocation (%s): %w", balanceOfMethod, err)
} else if ln := len(prms); ln != 1 {
return nil, fmt.Errorf("unexpected stack item count (%s): %d", balanceOfMethod, ln)
}
amount, err := client.BigIntFromStackItem(prms[0])
if err != nil {
return nil, fmt.Errorf("could not get integer stack item from stack item (%s): %w", balanceOfMethod, err)
}
return amount, nil
}