how to get permission?

[csquan]

    use code:
    const secretKey = "XXXXXX"
const apiKey    = "XXXXX"

 const base_testnet_binance_url = "https://testnet.binance.vision/api"
 
 client := NewClient(apiKey, secretKey)
client.SetApiEndpoint(base_spot_binance_url)
permission, err := client.Do(context.Background())
if err != nil {
	fmt.Println("error:", err)
	return
}

but get error: code=0, msg=
why??does something wrong??

[csquan]

?

[csquan]

?