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https://github.com/nspcc-dev/neo-go.git
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63 lines
2 KiB
Go
63 lines
2 KiB
Go
package smartcontract_test
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import (
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"context"
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"encoding/hex"
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"github.com/nspcc-dev/neo-go/pkg/rpcclient"
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"github.com/nspcc-dev/neo-go/pkg/rpcclient/actor"
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"github.com/nspcc-dev/neo-go/pkg/rpcclient/gas"
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"github.com/nspcc-dev/neo-go/pkg/rpcclient/neo"
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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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"github.com/nspcc-dev/neo-go/pkg/wallet"
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)
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func ExampleBuilder() {
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// No error checking done at all, intentionally.
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w, _ := wallet.NewWalletFromFile("somewhere")
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defer w.Close()
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c, _ := rpcclient.New(context.Background(), "url", rpcclient.Options{})
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// Assuming there is one Account inside.
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a, _ := actor.NewSimple(c, w.Accounts[0])
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pKey, _ := hex.DecodeString("03d9e8b16bd9b22d3345d6d4cde31be1c3e1d161532e3d0ccecb95ece2eb58336e") // Public key.
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b := smartcontract.NewBuilder()
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// Transfer + vote in a single script with each action leaving return value on the stack.
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b.InvokeMethod(neo.Hash, "transfer", a.Sender(), util.Uint160{0xff}, 1, nil)
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b.InvokeMethod(neo.Hash, "vote", pKey)
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script, _ := b.Script()
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// Actor has an Invoker inside, so we can perform test invocation using the script.
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res, _ := a.Run(script)
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if res.State != "HALT" || len(res.Stack) != 2 {
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panic("failed") // The script failed completely or didn't return proper number of return values.
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}
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transferResult, _ := res.Stack[0].TryBool()
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voteResult, _ := res.Stack[1].TryBool()
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if !transferResult {
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panic("transfer failed")
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}
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if !voteResult {
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panic("vote failed")
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}
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b.Reset() // Copy the old script above if you need it!
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// Multiple transfers of different tokens in a single script. If any of
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// them fails whole script fails.
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b.InvokeWithAssert(neo.Hash, "transfer", a.Sender(), util.Uint160{0x70}, 1, nil)
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b.InvokeWithAssert(gas.Hash, "transfer", a.Sender(), util.Uint160{0x71}, 100000, []byte("data"))
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b.InvokeWithAssert(neo.Hash, "transfer", a.Sender(), util.Uint160{0x72}, 1, nil)
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script, _ = b.Script()
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// Now send a transaction with this script via an RPC node.
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txid, vub, _ := a.SendRun(script)
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_ = txid
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_ = vub
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}
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