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