syntax = "proto3";

package library;

import "library/domain.proto";
import "library/rpc.proto";

// Service for managing a collection of books and authors.
service LibraryService {
  // Unary
  rpc GetBook(library.rpc.GetBookRequest) returns (library.domain.Book);

  // Server Streaming
  rpc QueryBooks(library.rpc.QueryBooksRequest) returns (stream library.domain.Book);

  // Client Streaming
  rpc Checkout(stream library.rpc.CheckoutRequest) returns (library.rpc.CheckoutResponse);

  // Bidirectional
  rpc SupportChat(stream library.rpc.ChatMessage) returns (stream library.rpc.ChatMessage);
}