protocols/protobuf.webpubsub.azure.v1/webpubsub.v1.proto

syntax = "proto3";

import "google/protobuf/any.proto";

message UpstreamMessage {
    oneof message {
        SendToGroupMessage send_to_group_message = 1;
        EventMessage event_message = 5;
        JoinGroupMessage join_group_message = 6;
        LeaveGroupMessage leave_group_message = 7;
    }

    message SendToGroupMessage {
        string group = 1;
        optional int32 ack_id = 2;
        MessageData data = 3;
    }

    message EventMessage {
        string event = 1;
        MessageData data = 2;
    }
    
    message JoinGroupMessage {
        string group = 1;
        optional int32 ack_id = 2;
    }

    message LeaveGroupMessage {
        string group = 1;
        optional int32 ack_id = 2;
    }
}

message MessageData {
    oneof data {
        string text_data = 1;
        bytes binary_data = 2;
        google.protobuf.Any protobuf_data = 3;
    }
}

message DownstreamMessage {
    oneof message {
        AckMessage ack_message = 1;
        DataMessage data_message = 2;
        SystemMessage system_message = 3;
    }
    
    message AckMessage {
        int32 ack_id = 1;
        bool success = 2;
        optional ErrorMessage error = 3;
    
        message ErrorMessage {
            string name = 1;
            string message = 2;
        }
    }

    message DataMessage {
        string from = 1;
        optional string group = 2;
        MessageData data = 3;
    }

    message SystemMessage {
        oneof message {
            ConnectedMessage connected_message = 1;
            DisconnectedMessage disconnected_message = 2;
        }
    
        message ConnectedMessage {
            string connection_id = 1;
            string user_id = 2;
        }

        message DisconnectedMessage {
            string reason = 2;
        }
    }
}