Query some HyperLedger chaincode from Go

chaincode_query.go

package main

import (
	"fmt"

	"github.com/hyperledger/fabric/peer/chaincode"
	pb "github.com/hyperledger/fabric/protos/peer"
)

func main() {
	chainID := "mychannel"
	var err error
	if err != nil {
		panic(err)
	}

	ccInput := &pb.ChaincodeInput{
		Args: [][]byte{
			[]byte("a"),
			[]byte("b"),
			[]byte("100"),
		},
	}

	for _, v := range ccInput.Args {
		fmt.Println(string(v))
	}

	spec := &pb.ChaincodeSpec{
		Type:        1,
		ChaincodeId: &pb.ChaincodeID{Path: "github.com/hyperledger/fabric/examples/chaincode/go/chaincode02", Name: "hash chaincode", Version: "used in deploy"},
		Input:       ccInput,
	}
	cf, err := chaincode.InitCmdFactory()
	if err != nil {
		panic(err)
	}

	rsp, err := chaincode.ChaincodeInvokeOrQuery(spec, chainID, false, cf.Signer, cf.EndorserClient, cf.BroadcastClient)
	if err != nil {
		panic(err)
	}
	fmt.Printf("rsp = %+v\n", rsp)
}