Hyperledger fabric介绍之fabric-sdk-go入门

package main
 
import (
    "fmt"
    "github.com/hyperledger/fabric-sdk-go/pkg/client/channel"
    "github.com/hyperledger/fabric-sdk-go/pkg/core/config"
    "github.com/hyperledger/fabric-sdk-go/pkg/fabsdk"
)
 
func main() {
    // 初始化SDK，使用默认配置文件加载
    sdk, err := fabsdk.New(config.FromFile("./config.yaml"))
    if err != nil {
        fmt.Printf("Failed to create SDK: %s\n", err)
        return
    }
    defer sdk.Close()
 
    // 初始化客户端
    clientChannelContext := sdk.ChannelContext("mychannel", fabsdk.WithUser("User1"))
    client, err := channel.New(clientChannelContext)
    if err != nil {
        fmt.Printf("Failed to create channel client: %s\n", err)
        return
    }
 
    // 调用通道上的链码
    response, err := client.Execute(channel.Request{ChaincodeID: "mycc", Fcn: "invoke", Args: [][]byte{[]byte("arg1"), []byte("arg2")}})
    if err != nil {
        fmt.Printf("Failed to execute chaincode: %s\n", err)
        return
    }
 
    // 打印结果
    fmt.Println("Chaincode invoke result:", string(response.Payload))
}

这段代码展示了如何使用fabric-sdk-go包初始化Hyperledger Fabric的SDK，创建客户端并在指定通道上调用链码。这是一个简化的示例，实际应用中需要配置具体的网络和身份信息。