protobuf.js/tests/sandbox/sample.proto

syntax = "proto3";
import "google/protobuf/any.proto";

message Request {
    enum Action {
        SELECT = 0;
        INSERT = 1;
        UPDATE = 2;
        DELETE = 3;
    }
    Action action = 1;
    repeated string target = 2;
    string source = 3;
    repeated Dict require = 4;
    repeated Sort sort = 5;
    int32 limit = 6;
    int64 offset = 7;
    google.protobuf.Any args = 8;
    repeated google.protobuf.Any content = 9;
}

message Response {
    int32 code = 1;
    string msg = 2;
    google.protobuf.Any result = 4;
    repeated google.protobuf.Any content = 3;
}

message Dict {
    enum Compare {
        LT = 0;
        EQ = 1;
        GT = 2;
    }
    string key = 1;
    string value = 2;
    Compare compare = 3;
}

message Sort {
    enum OrderBy {
        ASC = 0;
        DESC = 1;
    }
    string column = 1;
    OrderBy orderBy = 2;
}

message Arg {
    repeated string text = 1;
    repeated google.protobuf.Any obj = 2;
}