syntax = "proto3";

package com.book;

message Book {
    int64 isbn = 1;
    string title = 2;
    string author = 3;
}

message GetBookRequest {
    int64 isbn = 1;
}

message GetBookViaAuthor {
    string author = 1;
}

service BookService {
    rpc GetBook (GetBookRequest) returns (Book) {}
    rpc GetBooksViaAuthor (GetBookViaAuthor) returns (stream Book) {}
    rpc GetGreatestBook (stream GetBookRequest) returns (Book) {}
    rpc GetBooks (stream GetBookRequest) returns (stream Book) {}
}

message BookStore {
    string name = 1;
    map<int64, string> books = 2;
}

enum EnumSample {
    option allow_alias = true;
    UNKNOWN = 0;
    STARTED = 1;
    RUNNING = 1;
    caseTest = 2;
    How_about_This = 3;
    alllowercase = 4;
}

// Message with reserved keywords
// see: https://github.com/google/protobuf/blob/cc3fa2ec80d196e045ae05797799f079188106f3/js/compatibility_tests/v3.0.0/test.proto#L66-L72
message SpecialCases {
    string normal = 1;
    // Examples of Js reserved names that are converted to pb_<name>.
    string default = 2;
    string function = 3;
    string var = 4;
}