Add exchange rates as convenience methods

[melvinroest]

https://trader.degiro.nl/trader/#/products/705366/overview is the EUR/USD exchange rate. You can find this quite easily via the main menu.

I made a convenience method as follows:

def get_euro_dollar():
    return degiro.real_time_price(705366, degiroapi.Interval.Type.One_Day)[0]['data']['lastPrice']

Is it an idea to add something like this to the codebase for multiple currencies?

[blunderedbishop]

I can try to do this. What would you like to see added besides the real time quote?

Most of the time you can use the search_products method searching for the desired rate (e.g. 'EUR/GBP') to get the info you want. Sometimes it appears as a second result (e.g. 'EUR/USD'), so in this case use set the limit parameter to 2. Beware that the price that is returned through the search_products method is the last day's closing price, not the real time one.