osbutil

// Assume the broker and secret already exist
secret := createFakeBrokerSecret()

// NewClient checks the structural validity of the secret, but doesn't attempt
// to ping the broker on startup.
client, err := NewClient(secret)
if err != nil {
	// XXX: Handle the error correctly for your context.
	panic(err)
}

// XXX: Make a call to the broker here e.g. client.GetCatalog()

fmt.Printf("Client initialized? %t\n", client != nil)

Output:
Client initialized? true

_, err := NewClient(nil)
fmt.Println(err.Error())

Output:
nil Secret not allowed