Order

This is a micro service for Helsinki University Distributed Systems course

The application setup is done using docker-compose.

First build a docker image of the Order service from the project root:

docker build -t order:latest .

Next build the images of the other services of the system, and run the system from the docker-compose project. The links and the instructions are in the docker-compose repository readme.

Make an order:

POST /api/orders

This endpoint will expect ordered products to be specified in request body as a list:

{ products: [{ id: number, name: string, amount: number, price: number }] }

List all orders:

GET /api/orders

In the project root folder, create an .env file with the following content:

DEV_PORT = <MY_DEV_PORT>
TEST_PORT = <MY_TEST_PORT>
POSTGRES_USER = <MY_USER>
POSTGRES_PASSWORD = <MY_PASSWORD>
INVENTORY_URL = <MY_INVENTORY_URL>

Get the image:

docker pull postgres

Start the database container:

docker run \
  -d \
  --name order_postgres \
  -p 5432:5432 \
  -e POSTGRES_PASSWORD=<MY_PASSWORD> \
  -v /home/local/<WHERE_I_WANT_MY_DATA>:/var/lib/postgresql/data \
  postgres

Check the container id:

docker ps 

Enter the container:

docker exec -it <MY_CONTAINER_ID> bash

Authenticate to start using as postgres user, when prompted, enter the password that was used when starting the container

psql -h localhost -p 5432 -U postgres -W

Create new role 'me':

CREATE ROLE me WITH LOGIN PASSWORD <MY_PASSWORD>;
ALTER ROLE me CREATEDB;

Exit the default session

\qt

Login with the new user:

psql -d postgres -U me

Create database and connect with the user:

CREATE DATABASE order_db;
 \c order_db

Exit

\qt
exit

Before starting the application, initialize the database tables (run in the project root):

./node_modules/.bin/sequelize db:migrate

npm run start:dev