hychrisli / bike-rental-system Goto Github PK

1. Timer Service Model

• As Subscriber
  • Receive bike reservation Confirmation
  • Receive bike reservation cancellation message
  • Receive bike checkout message
• As Publisher
  • Send out long wait time message

Reservation_timer:

• bike_id
• timer_start_time

Set up the UI backand with Spring Boot, Swagger and Cassandra
Use Google Pubsub client to publish message.
No need to receive message.

• Deploy a cassandra container

  • Single Cassandra instance
    https://github.com/GoogleCloudPlatform/cassandra-docker/blob/master/3/README.md
  • Single Stateful App
    https://kubernetes.io/docs/tutorials/stateful-application/cassandra/
  • Scalable Cassandra
    https://kubernetes.io/docs/tutorials/stateful-application/cassandra/

• Deploy my web application

  • Build and submit docker image to google container registry
    https://cloud.google.com/container-registry/docs/quickstart
    https://thornelabs.net/2017/06/17/deploy-a-three-tier-web-application-to-kubernetes.html
    https://cloud.google.com/kubernetes-engine/docs/tutorials/hello-app

• Integrate pubsub with the web app.

Full pipeline starting with receiving reservation request message from station-rest to sending out completion message to pubsub

1. Station Service data model

• As Subscriber
  • Receive reservation request
  • Receive bike checkout / checkin message
• As Publisher
  • Confirm bike reservation
  • Deny bike reservation
• Keep track of available bikes

2. Entities

• Station Entity:

  • station_id
  • name
  • total_docks
  • avail_bikes

• Bike Entity:

  • bike_id
  • station_id
  • is_reserved
  • user_id
  • transaction_id

• Bike Rental History Entity:

  • bike_id
  • user_id
  • transaction_id
  • from_station_id
  • checkout_time
  • to_station_id
  • checkin_time

2. Station Service message format
3. Spring & Cassandra Implementation