contract_read.go

package main

import (
	"fmt"
	"log"

	"github.com/ethereum/go-ethereum/common"
	"github.com/ethereum/go-ethereum/ethclient"

	store "github.com/spark8899/go-eth-tools/contracts" // for demo
)

func main() {
	client, err := ethclient.Dial("https://rinkeby.infura.io")
	if err != nil {
		log.Fatal(err)
	}

	address := common.HexToAddress("0x147B8eb97fD247D06C4006D269c90C1908Fb5D54")
	instance, err := store.NewStore(address, client)
	if err != nil {
		log.Fatal(err)
	}

	version, err := instance.Version(nil)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println(version) // "1.0"
}