rpc will be updated to mutual ssl mode and migrate into client
client, err := refreshTokenRpc.NewRpc("v.ncuos.com:443", &refreshTokenRpc.Config{
AppCode: "xxx",
AppSecret: "xxx"
})
if err!=nil {
panic(err)
}
token, err := client.RefreshToken(context.Background(), "refresnTokenHere")
if err!=nil {
panic(err)
}
fmt.Println(token)