package smartcontract_test import ( "context" "encoding/hex" "github.com/nspcc-dev/neo-go/pkg/core/transaction" "github.com/nspcc-dev/neo-go/pkg/rpcclient" "github.com/nspcc-dev/neo-go/pkg/rpcclient/actor" "github.com/nspcc-dev/neo-go/pkg/smartcontract" "github.com/nspcc-dev/neo-go/pkg/util" "github.com/nspcc-dev/neo-go/pkg/wallet" ) func ExampleBuilder() { // No error checking done at all, intentionally. c, _ := rpcclient.New(context.Background(), "url", rpcclient.Options{}) neoHash, _ := c.GetNativeContractHash("NeoToken") pKey, _ := hex.DecodeString("03d9e8b16bd9b22d3345d6d4cde31be1c3e1d161532e3d0ccecb95ece2eb58336e") // Public key. b := smartcontract.NewBuilder() // Single NEO "vote" call with a check b.InvokeWithAssert(neoHash, "vote", pKey) script, _ := b.Script() // The script can then be used to create transaction or to invoke via RPC. res, _ := c.InvokeScript(script, []transaction.Signer{{Account: util.Uint160{0x01, 0x02, 0x03}, Scopes: transaction.CalledByEntry}}) if res.State != "HALT" { // The script failed } b.Reset() // Copy the old script above if you need it! w, _ := wallet.NewWalletFromFile("somewhere") // Assuming there is one Account inside a, _ := actor.NewSimple(c, w.Accounts[0]) from := w.Accounts[0].Contract.ScriptHash() // Assuming Contract is present. // Multiple transfers in a single script. If any of them fail whole script fails. b.InvokeWithAssert(neoHash, "transfer", from, util.Uint160{0x70}, 1, nil) b.InvokeWithAssert(neoHash, "transfer", from, util.Uint160{0x71}, 10, []byte("data")) b.InvokeWithAssert(neoHash, "transfer", from, util.Uint160{0x72}, 1, nil) script, _ = b.Script() // The script can then be used to create transaction or to invoke via RPC. txid, vub, _ := a.SendRun(script) _ = txid _ = vub }