forked from TrueCloudLab/neoneo-go
ed6ed61712
I'm still not sure it's good to have this exposed from neptoken at all, but let's try it this way.
47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
package neptoken
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import (
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"fmt"
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"github.com/nspcc-dev/neo-go/pkg/core/state"
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"github.com/nspcc-dev/neo-go/pkg/rpcclient/invoker"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/wallet"
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)
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// InfoClient is a set of RPC methods required to get all of the NEP-11/NEP-17
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// token data.
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type InfoClient interface {
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invoker.RPCInvoke
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GetContractStateByHash(hash util.Uint160) (*state.Contract, error)
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}
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// Info allows to get basic token info using RPC client.
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func Info(c InfoClient, hash util.Uint160) (*wallet.Token, error) {
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cs, err := c.GetContractStateByHash(hash)
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if err != nil {
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return nil, err
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}
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var standard string
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for _, st := range cs.Manifest.SupportedStandards {
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if st == manifest.NEP17StandardName || st == manifest.NEP11StandardName {
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standard = st
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break
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}
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}
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if standard == "" {
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return nil, fmt.Errorf("contract %s is not NEP-11/NEP17", hash.StringLE())
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}
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b := New(invoker.New(c, nil), hash)
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symbol, err := b.Symbol()
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if err != nil {
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return nil, err
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}
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decimals, err := b.Decimals()
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if err != nil {
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return nil, err
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}
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return wallet.NewToken(hash, cs.Manifest.Name, symbol, int64(decimals), standard), nil
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}
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