Connect to DC - any hint how to do it?

[dorsegal]

I trying to connect the client to my telegram DC proxy,
I created the public key and the DCList, but the client doesn't run - it is just stuck on RUN with no error...

What I tried:

var spkiPem = -----BEGIN RSA PUBLIC KEY-----
MY PUBLIC KEY
-----END RSA PUBLIC KEY-----`

// Load X.509/SPKI key
spkiBlock, _ := pem.Decode([]byte(spkiPem))
var spkiKey *rsa.PublicKey
spkiKey, err := x509.ParsePKCS1PublicKey(spkiBlock.Bytes)
if err != nil {
	log.Fatalln(err)
}
//spkiKey = pubInterface.(*rsa.PublicKey)
domains := make(map[int]string)
domains[0] = "14.15.17.0:443"
dcList := dcs.List{
	Options: nil,
	Domains: domains,
	Test:    false,
}
pk := telegram.PublicKey{}
pk.RSA = spkiKey
client := telegram.NewClient(xAppID, xAppHash, telegram.Options{ 
	PublicKeys:          []telegram.PublicKey{pk},
	DCList:              dcList,
})
if err := client.Run(context.Background(), func(ctx context.Context) error { //NOT RUNNING
	// It is only valid to use client while this function is not returned
	// and ctx is not cancelled.
	api := client.API()

             //MY CODE HERE

}`

Any hint how to set it correctly will be very helpful

thanks