booking-service

This project uses Quarkus, the Supersonic Subatomic Java Framework.

If you want to learn more about Quarkus, please visit its website: https://quarkus.io/.

Project scaffolding

quarkus create app com.bkuberek:booking-service --extension='quarkus-jdbc-postgresql,quarkus-reactive-pg-client,quarkus-jdbi,quarkus-liquibase,quarkus-grpc'

Running the application in dev mode

You can run your application in dev mode that enables live coding using:

./mvnw compile quarkus:dev

NOTE: Quarkus now ships with a Dev UI, which is available in dev mode only at http://localhost:8080/q/dev/.

Packaging and running the application

The application can be packaged using:

./mvnw package

It produces the quarkus-run.jar file in the target/quarkus-app/ directory. Be aware that it’s not an über-jar as the dependencies are copied into the target/quarkus-app/lib/ directory.

The application is now runnable using java -jar target/quarkus-app/quarkus-run.jar.

If you want to build an über-jar, execute the following command:

./mvnw package -Dquarkus.package.jar.type=uber-jar

The application, packaged as an über-jar, is now runnable using java -jar target/*-runner.jar.

Creating a native executable

You can create a native executable using:

./mvnw package -Dnative

Or, if you don't have GraalVM installed, you can run the native executable build in a container using:

./mvnw package -Dnative -Dquarkus.native.container-build=true

You can then execute your native executable with: ./target/booking-service-1.0.0-SNAPSHOT-runner

If you want to learn more about building native executables, please consult https://quarkus.io/guides/maven-tooling.

Related Guides

• JDBC Driver - PostgreSQL (guide): Connect to the PostgreSQL database via JDBC
• Liquibase (guide): Handle your database schema migrations with Liquibase

Provided Code

gRPC

Create your first gRPC service

Related guide section...

Hello Service

Describe the service

grpcurl -plaintext localhost:9000 list

com.bkuberek.bookings.services.ReservationGrpc
com.bkuberek.bookings.services.RestaurantGrpc
grpc.health.v1.Health
hello.HelloGrpc

grpcurl -plaintext localhost:9000 describe hello.HelloGrpc

hello.HelloGrpc is a service:
service HelloGrpc {
  rpc SayHello ( .hello.HelloRequest ) returns ( .hello.HelloReply );
}

Query the service

grpcurl -plaintext -d '{"name": "there"}' localhost:9000 hello.HelloGrpc.SayHello

{
  "message": "Hello there!"
}

Describe Services

grpcurl -plaintext localhost:9000 describe com.bkuberek.bookings.services.RestaurantGrpc

com.bkuberek.bookings.services.RestaurantGrpc is a service:
service RestaurantGrpc {
  rpc AllRestaurants ( .com.bkuberek.bookings.EmptyRequest ) returns ( .com.bkuberek.bookings.RestaurantInfoList );
  rpc FindRestaurantsWithEndorsements ( .com.bkuberek.bookings.services.FindRestaurantsWithEndorsementsRequest ) returns ( .com.bkuberek.bookings.RestaurantInfoList );
  rpc FindTable ( .com.bkuberek.bookings.services.FindTableRequest ) returns ( .com.bkuberek.bookings.services.FindTableResponse );
  rpc GetAvailableTables ( .com.bkuberek.bookings.services.GetAvailableTablesRequest ) returns ( .com.bkuberek.bookings.services.RestaurantTablesAvailable );
  rpc GetRestaurantById ( .com.bkuberek.bookings.services.GetRestaurantByIdRequest ) returns ( .com.bkuberek.bookings.RestaurantInfo );
  rpc GetRestaurantsById ( .com.bkuberek.bookings.services.GetRestaurantsByIdRequest ) returns ( .com.bkuberek.bookings.RestaurantInfoList );
  rpc GetRestaurantsByName ( .com.bkuberek.bookings.services.GetRestaurantsByNameRequest ) returns ( .com.bkuberek.bookings.RestaurantInfoList );
}

 grpcurl -plaintext localhost:9000 describe com.bkuberek.bookings.services.GetAvailableTablesRequest

com.bkuberek.bookings.services.GetAvailableTablesRequest is a message:
message GetAvailableTablesRequest {
  string restaurantId = 1;
  uint32 size = 2;
  .google.protobuf.Timestamp time = 3;
}

Get All Restaurants

grpcurl -plaintext -d '{}' localhost:9000 com.bkuberek.bookings.services.RestaurantGrpc.AllRestaurants | jq .

Find Restaurants With Endorsements

grpcurl -plaintext -d '{"endorsements":["gluten"]}' localhost:9000 com.bkuberek.bookings.services.RestaurantGrpc.FindRestaurantsWithEndorsements | jq .