func printPeer(ps pstore.Peerstore, p peer.ID) (interface{}, error) { if p == "" { return nil, errors.New("Attempted to print nil peer!") } info := new(IdOutput) info.ID = p.Pretty() if pk := ps.PubKey(p); pk != nil { pkb, err := ic.MarshalPublicKey(pk) if err != nil { return nil, err } info.PublicKey = base64.StdEncoding.EncodeToString(pkb) } for _, a := range ps.Addrs(p) { info.Addresses = append(info.Addresses, a.String()) } if v, err := ps.Get(p, "ProtocolVersion"); err == nil { if vs, ok := v.(string); ok { info.ProtocolVersion = vs } } if v, err := ps.Get(p, "AgentVersion"); err == nil { if vs, ok := v.(string); ok { info.AgentVersion = vs } } return info, nil }