currency converter

Data source

• ECB - European Central Bank

Used packages

• flask
• fire
• requests
• django
• xml

Parameters

• amount - amount which we want to convert - float
• input_currency - input currency - 3 letters name or currency symbol
• output_currency - requested/output currency - 3 letters name or currency symbol
• dec - number of decimal places used in output

Functionality

• if output_currency param is missing, convert to all known currencies

Output

• json with following structure.

{
    "input": { 
        "amount": <float>,
        "currency": <3 letter currency code>
    }
    "output": {
        <3 letter currency code>: <float>
    }
}

Usage

CLI

./currency_converter.py --amount XXX --input_currency XXX --output_currency XXX --dec XXX

django

add lines to urls.py

from currencyConverter.moduls.api import djangoAPI
urlpatterns = [
	url(r'^currency_converter$', djangoAPI.get, name='currency_converter'),
]

Flask

./currency_converter.py --flask --port XXX --host XXX

Examples

CLI

./currency_converter.py --amount 100.0 --input_currency EUR --output_currency CZK
{   
    "input": {
        "amount": 100.0,
        "currency": "EUR"
    },
    "output": {
        "CZK": 2707.36, 
    }
}

./currency_converter.py --amount 10.92 --input_currency £ 
{
    "input": {
        "amount": 10.92,
        "currency": "GBP"
    },
    "output": {
        "EUR": 14.95,
        "USD": 17.05,
        "CZK": 404.82,
        .
        .
        .
    }
}

API

GET /currency_converter?amount=0.9&input_currency=¥&output_currency=AUD HTTP/1.1
{   
    "input": {
        "amount": 0.9,
        "currency": "CNY"
    },
    "output": {
        "AUD": 0.20, 
    }
}

GET /currency_converter?amount=10.92&input_currency=£ HTTP/1.1
{
    "input": {
        "amount": 10.92,
        "currency": "GBP"
    },
    "output": {
        "EUR": 14.95,
        "USD": 17.05,
        "CZK": 404.82,
        .
        .
        .
    }
}