A Supermarket Register CLI application which can take a set of product codes, look up the price of each product, and compute the total amount of the sale (including local sales tax).

Features:

• Initial products supported can be modified in config/products.json.
• List products
• Add a product
• Remove a product
• Calculate total amount of sale of selected products (including local sales tax)
• Save register products.

Docker (Tested with Docker version 17.05.0-ce, build 89658be)

To run unit tests and build the application:

# Using Makefile
make build

# Using docker explicitly
docker build -t supermarket .

(Optional) Set environment variable SKUS to a string of products codes separated by semicolons. This will be used to calculate total amount of sale.

e.g.

export SKUS="E5T6-9UI3-TH15-QR88; YRT6-72AS-K736-L4AR"

To run the application:

# Using Makefile
make run

# Using docker explicitly
docker run -e SKUS="${SKUS}" -it supermarket

To start an exited application and continue from it's last saved state:

docker start -i <CONTAINER_ID>

An example of the Supermarket CLI Application running:

1. List products
2. Add a product
3. Remove a product
4. Calculate total of products
5. Save and exit
Select option:
1
E5T6-9UI3-TH15-QR88 {'product': 'Chicken', 'price': 8.18}
65P1-UDGM-XH2M-LQW2 {'product': 'Tuna', 'price': 5.89}
A12T-4GH7-QPL9-3N4M {'product': 'Cereal', 'price': 3.46}
YRT6-72AS-K736-L4AR {'product': 'Pop', 'price': 1.63}
TQ4C-VV6T-75ZX-1RMR {'product': 'Pizza', 'price': 6.78}