syntax = "proto3"; option go_package = ".;proto"; package proto; service Notifier { rpc NotifyUser(NotifyUserRequest) returns (NotifyResponse) {} rpc NotifyAllUser(NotifyRequest) returns(NotifyResponse) {} } message NotifyUserRequest { uint64 user_id = 1; NotifyRequest notify = 2; } message NotifyRequest { string topic = 1; string title = 2; optional string subtitle = 3; string body = 4; bytes metadata = 5; } message NotifyResponse { bool is_success = 1; int64 affected_count = 2; }