72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
package client
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import (
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"github.com/nspcc-dev/neo-go/pkg/smartcontract"
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"github.com/nspcc-dev/neo-go/pkg/util"
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)
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// nepDecimals invokes `decimals` NEP* method on a specified contract.
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func (c *Client) nepDecimals(tokenHash util.Uint160) (int64, error) {
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result, err := c.InvokeFunction(tokenHash, "decimals", []smartcontract.Parameter{}, nil)
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if err != nil {
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return 0, err
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}
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err = getInvocationError(result)
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if err != nil {
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return 0, err
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}
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return topIntFromStack(result.Stack)
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}
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// nepSymbol invokes `symbol` NEP* method on a specified contract.
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func (c *Client) nepSymbol(tokenHash util.Uint160) (string, error) {
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result, err := c.InvokeFunction(tokenHash, "symbol", []smartcontract.Parameter{}, nil)
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if err != nil {
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return "", err
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}
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err = getInvocationError(result)
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if err != nil {
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return "", err
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}
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return topStringFromStack(result.Stack)
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}
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// nepTotalSupply invokes `totalSupply` NEP* method on a specified contract.
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func (c *Client) nepTotalSupply(tokenHash util.Uint160) (int64, error) {
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result, err := c.InvokeFunction(tokenHash, "totalSupply", []smartcontract.Parameter{}, nil)
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if err != nil {
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return 0, err
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}
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err = getInvocationError(result)
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if err != nil {
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return 0, err
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}
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return topIntFromStack(result.Stack)
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}
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// nepBalanceOf invokes `balanceOf` NEP* method on a specified contract.
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func (c *Client) nepBalanceOf(tokenHash, acc util.Uint160, tokenID *string) (int64, error) {
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params := []smartcontract.Parameter{{
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Type: smartcontract.Hash160Type,
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Value: acc,
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}}
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if tokenID != nil {
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params = append(params, smartcontract.Parameter{
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Type: smartcontract.StringType,
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Value: *tokenID,
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})
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}
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result, err := c.InvokeFunction(tokenHash, "balanceOf", params, nil)
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if err != nil {
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return 0, err
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}
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err = getInvocationError(result)
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if err != nil {
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return 0, err
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}
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return topIntFromStack(result.Stack)
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}
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