99 lines
2.1 KiB
Go
99 lines
2.1 KiB
Go
package terra
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import (
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"context"
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"encoding/json"
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"io/ioutil"
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"time"
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"github.com/terra-project/terra.go/client"
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"github.com/terra-project/terra.go/key"
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"github.com/terra-project/terra.go/msg"
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"github.com/terra-project/terra.go/tx"
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"github.com/certusone/wormhole/node/pkg/vaa"
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)
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type submitVAAMsg struct {
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Params submitVAAParams `json:"submit_v_a_a"`
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}
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type submitVAAParams struct {
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VAA []byte `json:"vaa"`
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}
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// SubmitVAA prepares transaction with signed VAA and sends it to the Terra blockchain
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func SubmitVAA(ctx context.Context, urlLCD string, chainID string, contractAddress string, feePayer string, signed *vaa.VAA) (*client.TxResponse, error) {
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// Serialize VAA
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vaaBytes, err := signed.Marshal()
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if err != nil {
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return nil, err
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}
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// Derive Raw Private Key
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privKey, err := key.DerivePrivKey(feePayer, key.CreateHDPath(0, 0))
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if err != nil {
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return nil, err
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}
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// Generate StdPrivKey
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tmKey, err := key.StdPrivKeyGen(privKey)
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if err != nil {
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return nil, err
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}
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// Generate Address from Public Key
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addr := msg.AccAddress(tmKey.PubKey().Address())
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// Create LCDClient
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LCDClient := client.NewLCDClient(
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urlLCD,
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chainID,
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msg.NewDecCoinFromDec("uusd", msg.NewDecFromIntWithPrec(msg.NewInt(15), 2)), // 0.15uusd
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msg.NewDecFromIntWithPrec(msg.NewInt(15), 1), tmKey, time.Second*15,
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)
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contract, err := msg.AccAddressFromBech32(contractAddress)
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if err != nil {
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return nil, err
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}
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// Create tx
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contractCall, err := json.Marshal(submitVAAMsg{
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Params: submitVAAParams{
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VAA: vaaBytes,
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}})
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if err != nil {
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return nil, err
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}
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executeContract := msg.NewExecuteContract(addr, contract, contractCall, msg.NewCoins())
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transaction, err := LCDClient.CreateAndSignTx(ctx, client.CreateTxOptions{
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Msgs: []msg.Msg{
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executeContract,
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},
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Fee: tx.StdFee{
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Gas: msg.NewInt(0),
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Amount: msg.NewCoins(),
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},
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})
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if err != nil {
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return nil, err
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}
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// Broadcast
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return LCDClient.Broadcast(ctx, transaction)
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}
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// ReadKey reads file and returns its content as a string
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func ReadKey(path string) (string, error) {
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b, err := ioutil.ReadFile(path)
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if err != nil {
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return "", err
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}
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return string(b), nil
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}
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