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Update method from NewTransactor to NewTransactorWithChainID.

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Update code samples.
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Zubin Pratap 2023-08-14 14:57:58 +10:00
parent d4f3ea4aac
commit 1ba9a38dfd
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1 changed files with 18 additions and 8 deletions
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26
docs/developers/dapp-developer/native-bindings.md
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@ -40,13 +40,17 @@ pragma solidity >0.7.0 < 0.9.0;
*/
contract Storage {
string public version;
uint256 public value;
uint256 value;
constructor(string memory _version) {
version = _version;
}
function store(uint256 number) public{
value = number;
}
function retrieve() public view returns (uint256){
return value;
}
@ -224,12 +228,18 @@ func main() {
if err != nil {
log.Fatalf("Failed to connect to the Ethereum client: %v", err)
}
auth, err := bind.NewTransactor(strings.NewReader(key), "<<strong_password>>")
keyDataBytes, err := os.ReadFile(keyFile)
if err != nil {
fmt.Print("error reading key file: ", err)
}
auth, err := bind.NewTransactorWithChainID(strings.NewReader(string(keyDataBytes)), "<<strong_password>>", chainId)
if err != nil {
log.Fatalf("Failed to create authorized transactor: %v", err)
}
// Deploy the contract passing the newly created `auth` and `conn` vars
address, tx, instance, err := DeployStorage(auth, conn), new(big.Int), "Storage contract in Go!", 0, "Go!")
address, tx, instance, err := DeployStorage(auth, conn, "v0.0")
if err != nil {
log.Fatalf("Failed to deploy new storage contract: %v", err)
}
@ -238,12 +248,12 @@ func main() {
time.Sleep(250 * time.Millisecond) // Allow it to be processed by the local node :P
// function call on `instance`. Retrieves pending name
name, err := instance.Name(&bind.CallOpts{Pending: true})
// function call on `instance`. Retrieves version string.
version, err := instance.Version(&bind.CallOpts{Pending: true})
if err != nil {
log.Fatalf("Failed to retrieve pending name: %v", err)
log.Fatalf("Failed to retrieve pending version data: %v", err)
}
fmt.Println("Pending name:", name)
fmt.Println("Pending version string:", version)
}
```