Appolica assessment

 

Related to this page containing all the requirements.

A program that converts user input value from one currency into another into a JSON file.

Features

The currency converter takes a date, value and your desired input and output currencies in an infinite loop. In order to exit the app you just need to type end. After typing end you'll get a few additional prompts telling you to save your file in output/conversions.json and if there's already a saved file from there then you can choose to:

• Write to a new file (only in output/).

• Override the existing file.

• Discard your changes.

In the case where you want to use today's date, there's a neat shorthand for the --date / -d command with an alias of now. With it you can use today's date without having to type it out like this:

python3 CurrencyConversion.py --date=now
# or
python3 CurrencyConversion.py -d=now
# Trailing/leading quotes don't affect it either
python3 CurrencyConversion.py -d="now"
# It's also case-insensitive
python3 CurrencyConversion.py -d="nOw"

Setting up

Head to FastForex and make an account for an API key.

Add the API key in a config.json file in the root of this repository. The file format should be like this

{
  "fast_forex_api_key": "your-key-here | check out https://console.fastforex.io/auth/signin"
}

It's necessary for the variable to be called fast_forex_api_key.

Additionally you need to install requests if you haven't already. You can do it in 2 ways (i recommend using the requirements.txt one).

pip install -r requirements.txt # NOTE: in the project root.
# Or
pip install requests

Then it's a manner of running the app.

python3 CurrencyConversion.py -d=YYYY-MM-DD
# or
python3 CurrencyConversion.py --date=YYYY-MM-DD

Replace the YYYY-MM-DD part with the year-month-day you wish to do your currency conversion in.

Note

Free accounts are limited to 14 days back in time and their service works for dates after 2015-01-01.