Deployed in IBM Cloud in a Kubernetes cluster. Vitess is used as MySQL database clustering solution. vtgate act as a database proxy and prevent database overloading with many connections. Our Node.js pods are exposed using an IBM LoadBalancer instance.
| Postman collection URL | https://api.postman.com/collections/3399909-8552301a-0d51-4acc-9b09-cae2a1bf780e?access_key=PMAT-01HHF91WPTK17ZRXP9YKP7EM10 |
| Host | car-listing-marketplace.developerdiary.me |
| Port | 3000 |
| Admin cred | { "username": "admin", "email": "admin@car-listing.com", "password": "admin123"} |
| User 1 cred | { "username": "user", "email": "user1@gmail.com", "password": "user1234" } |
| User 2 cred | { "username": "user2", "email": "user2@gmail.com", "password": "user21234"} |
After posing a car by an admin, it is available for users to book the car for the next day for hour-sized time slots for 24 hours. This is just to get the demo application running. This should be configurable as per the needs.
- Authentication / Authorization is handled using JWT bearer tokens.
- Sharded the database to have a higher throughput of transactions and scatter-gather joins for faster car search results.
- Booking cars for a particular time slot is achieved by using materialized locks. Essentially when two parallel booking transactions are executed for the same car with overlapping time slots, only one booking will succeed.
- Database sharding is done as booking transactions are processed only within a shard by storing related records (records for a car, car time slot locks, and its booking) in the same shard.
docker build . -t amila15/car-listing-marketplace:v1.0.0
kind load docker-image amila15/car-listing-marketplace:v1.0.0
k apply -f manifests/kubernetes
k port-forward svc/car-listing-deployment 3000