| package SyncDemo; | |
| message ChatMessage { | |
| required string to = 1; | |
| required string from = 2; | |
| enum ChatMessageType { | |
| CHAT = 0; | |
| HELLO = 1; | |
| OTHER = 2; | |
| } | |
| required ChatMessageType type = 3 [default = CHAT]; | |
| optional string data = 4; | |
| optional int32 timestamp = 5; | |
| } |