/tickets-microservices-demo

Primary LanguageTypeScriptMIT LicenseMIT

Tickets application

Based on stubhub.com.
Platform for users selling their tickets for events (sports events, concerts, theater etc) to other users.
Focus on ticketing aspect of application and its challenges.

  • Users can list a ticket for an event for sale
  • Other users can purchase this ticket
  • Any user can list tickets for sale and purchase tickets
  • When user attempts to puchase a ticket, the ticket is 'locked' for 15 minutes. The user has 15 minutes to enter their payment info.
  • While locked, no other user can purchase this ticket. After 15 minutes the ticket should 'unlock'
  • Ticket prices can be edited if they are not locked

How to run application

Prerequisites

  • install Docker
  • install Kubernetes inside docker
  • install NGINX Ingress Controller

NGINX Ingress command (no Helm)

kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.2.0/deploy/static/provider/cloud/deploy.yaml

Generate secret for kubernetees

kubectl create secret generic jwt-secret --from-literal JWT_KEY=asdf

Running application in Docker

From top level run following command in shell

skaffold dev

Building a single service

docker build -t 'your-docker-id'/auth .

Local connection

Setup your hosts file to redirect connections for ticketing.dev.local to localhost

127.0.0.1 ticketing.dev.local

http://ticketing.dev.local/api/users/currentuser

Architecture & technologies

  • Microservices
  • Docker & Kubernetes
  • Typescript
  • Event bus using NATS streaming server
  • MongoDB database
  • Node with Express for Backend
  • Client build with Next.js

Services

  • auth - everything related to user signup/singin/singout
  • tickets - ticket creation/editing. Knows whether a ticket can be edited
  • orders - order creation / editing
  • expiration - watches for orders to be created, cancels them after 15 minutes
  • payments - handles credit card payments, cancels orders if payments fails, completes if payment succeeds

FAQ

  1. How to skip unskippable HTTPS warning in Chrome?
    Just click inside page with error and type thisisunsafe

Stack