上周在群聊吹牛，吹吹我写的golang 调用solana合约的东西。有人说他要学习go调用solidity的方法。我看了看我在登链的无abi调用合约的方法，写的python的，ethers的，solidity的，就是没写golang的，确实可以写写。
那个群里人都说用chatgpt都会用abigen的方式生成go包的方式调用合约方法。
所以我讲种不需要使用abigen生成go包的方法调用合约。
我还是喜欢使用我的晓道fork版，https://github.com/daog1/ethgo
fork自，umbracle/ethgo
好处我不讲，自己读代码。
合约调用最早都是需要abi文件生成的方式，后面还是有了更简单方式，最早我是ethers里面看到叫
a human-readable abi
ethers是这么写的：
// a human-readable abi; for interacting with the contract, we // must include any fragment we wish to use const abi = [ // read-only functions "function balanceof(address owner) view returns (uint256)", "function decimals() view returns (uint8)", "function symbol() view returns (string)", // authenticated functions "function transfer(address to, uint amount) returns (bool)", // events "event transfer(address indexed from, address indexed to, uint amount)" ]; // this can be an address or an ens name const address = "0x70ff5c5b1ad0533eaa5489e0d5ea01485d530674"; // read-only; by connecting to a provider, allows: // - any constant function // - querying filters // - populating unsigned transactions for non-constant methods // - estimating gas for non-constant (as an anonymous sender) // - static calling non-constant methods (as anonymous sender) const erc20 = new ethers.contract(address, abi, provider); // read-write; by connecting to a signer, allows: // - everything from read-only (except as signer, not anonymous) // - sending transactions for non-constant functions const erc20_rw = new ethers.contract(address, abi, signer);
ethgo 有点fork ethers的意思，所以也支持human-readable abi 的方式。
代码这么写
package main import ( "fmt" "math/big" "github.com/umbracle/ethgo" "github.com/umbracle/ethgo/abi" "github.com/umbracle/ethgo/contract" "github.com/umbracle/ethgo/jsonrpc" ) func handleErr(err error) { if err != nil { panic(err) } } func main() { var functions = []string{ "function totalSupply() view returns (uint256)", //Human-Readable ABI } abiContract, err := abi.NewABIFromList(functions) handleErr(err) // Matic token addr := ethgo.HexToAddress("0x7d1afa7b718fb893db30a3abc0cfc608aacfebb0") client, err := jsonrpc.NewClient("https://eth.llamarpc.com") handleErr(err) c := contract.NewContract(addr, abiContract, contract.WithJsonRPC(client.Eth())) res, err := c.Call("totalSupply", ethgo.Latest) //call totalSupply handleErr(err) fmt.Printf("TotalSupply: %s", res["0"].(*big.Int)) }
原版代码在这里：https://github.com/daog1/ethgo/blob/main/examples/contract-call-basic.go/blob/main/examples/contract-call-basic.go
我的那个fork 版，如果你发现什么问题，可以跟我说。
我一般都用human-readable abi 的方式调用，abigen这种太麻烦了，容易搞错。
