example.proto

syntax = "proto3";

message Movie {

    string name = 1;
    int32 year = 2;
    float rating = 3;
    repeated string cast = 4;
}

message MoviesResult {

    repeated Movie result = 1;
}

message EmptyRequest {
}

message SearchByCastInput {

    string cast_name = 1;
}
service ExampleService {
    rpc getMovies (EmptyRequest) returns (MoviesResult);
    rpc searchMoviesByCast (SearchByCastInput) returns (stream Movie);
}