Check Balance using Centrifuge GRPC library

main.go

package main

import (
  "fmt"
  gsrpc "github.com/centrifuge/go-substrate-rpc-client"
  "github.com/centrifuge/go-substrate-rpc-client/types"

)

func main() {
  getBalance();
}

func getBalance() {


    api, err := gsrpc.NewSubstrateAPI("wss://westend-rpc.polkadot.io");
    if err != nil {
      panic(err)
    }
  
    opts := types.SerDeOptions{NoPalletIndices: true}
    types.SetSerDeOptions(opts)

    meta, err := api.RPC.State.GetMetadataLatest()
    if err != nil {
      panic(err)
    }
  
		testAccount, err := types.HexDecodeString("0x9ae581fef1fc06828723715731adcf810e42ce4dadad629b1b7fa5c3c144a81d");
		if err != nil {
			panic(err)
		}
		
    key, err := types.CreateStorageKey(meta, "System", "Account", testAccount, nil)
    if err != nil {
      panic(err)
    }
  
    var accountInfo types.AccountInfo
    ok, err := api.RPC.State.GetStorageLatest(key, &accountInfo)
    if err != nil || !ok {
      panic(err)
    }

		fmt.Printf("Account Info", accountInfo);
}