solana rpc 返回"base64+zstd" 结果能解码成可读字符串吗？
官方文档参考：https://docs.solana.com/developing/clients/jsonrpc-api#getaccountinfo
"base64+zstd" compresses the Account data using Zstandard and base64-encodes the result.
待解码数据如下:
"data": [
"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",
"base64"
],
最佳答案 2022-04-17 17:43
这个问题可以，没人解答，我来试试
solana-go-sdk/getAccountInfo.go at 7369c04fccd1043e385a5b1bb11cd57fba90aa09 · devexpert127/solana-go-sdk (github.com)
这里有一个例子
bin "github.com/gagliardetto/binary"
{
pubKey := solana.MustPublicKeyFromBase58("4k3Dyjzvzp8eMZWUXbBCjEvwSkkk59S5iCNLY3QrkX6R") // raydium token
// advanced usage
resp, err := client.GetAccountInfoWithOpts(
context.TODO(),
pubKey,
// You can specify more options here:
&rpc.GetAccountInfoOpts{
Encoding: solana.EncodingBase64Zstd,
Commitment: rpc.CommitmentFinalized,
// You can get just a part of the account data by specify a DataSlice:
// DataSlice: &rpc.DataSlice{
// Offset: pointer.ToUint64(0),
// Length: pointer.ToUint64(1024),
// },
},
)
if err != nil {
panic(err)
}
var mint token.Mint
err = bin.NewBinDecoder(resp.Value.Data.GetBinary()).Decode(&mint)
if err != nil {
panic(err)
}
}
import (
"fmt"
bin "github.com/gagliardetto/binary"
"github.com/gagliardetto/solana-go/programs/token"
)
func main() {
var mint token.Mint
err := bin.NewBinDecoder([]byte("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")).Decode(&mint)
if err != nil {
fmt.Printf("+v", err.Error())
} else {
fmt.Printf("+v", mint)
}
}
其它 4 个回答
看了网上别人的例子，python确实不能这么干，主要没人这么干，别人干不来，但是我可以嘛，参考，https://github.com/solana-labs/solana-program-library/blob/master/token/program/inc/token.h文件
就是python解析二进制结构复杂一点点。
如有疑问，可以问我。
python中struct.pack()函数和struct.unpack()函数 - 南宫轩诺 - 博客园 (cnblogs.com)
buff ="c2VydW0DAAAAAAAAAN/1mEELDQohNJI6FgPa4ZU1gA2/byFWYcnA8lt8oeJmAAAAAAAAAAAgyOLJc+L47CrO7pWnR108Q0yBD1qiNMtF1FehLf0ukcb6evO+2606PWXzaqvJdDGxu+TC0vbg5HymAgNFL11hBVQXKA5KOlE6syIUtDhk5KQkBQCetCy8WtJa914hH+uAaKfHvAQAAAAAAAAAAAAADbShIaxCEUfTaEGDulZQgAKnb9kAKcuGa216Ntj3eA10P/oGPAAAAJ7JuAAAAAAAZAAAAAAAAACrHB5LTexVOS4v1tpKHzPkvyUqdBRHI6zjJ7RX1XFSvIsKaabVU0X9IAAAAAAAZAAAAAAAAAAAAAAAAAAAAEJGyAAAAAAAcGFkZGluZw=="
c0 = buff[36:44]
struct.unpack("<Q",c0.encode('utf-8')) 这个是supply
c2 = buff[44:45]
struct.unpack("<B",c2.encode('utf-8')) //decimals 挨个解下去，就搞定了
不知道用borsh 会不会简化这个操作。
看了这些资料，我理解这个解码是需要事先知道数据结构的。不管是python还是golang。不知道为啥，你一开始就用了 token.Mint 这个结构，而且看起来还是对的。
