Re: [Cbor] Money amounts

[Changaco <[e-mail]>]

On Mon, 25 Feb 2019 11:06:57 +0000 Richter, Jörg wrote:
> And I'm not a big fan of encoding additional information in the number of 
> decimal places.  So "EUR10.00" should be transmitted as "EUR10", or ["EUR",10].
> But for other decimal fractions you are right that the string might be shorter.

I think it's best to be lossless by default. If an encoder receives a `10.00`, for example a `Decimal('10.00')` object in Python, then it should encode the trailing zeroes unless it has been explicitly configured to drop them.

> Isn't this a use case for the additional attributes map?  To encode the 
> number of decimal places that should be used (e.g. for display).  What
> other applications do you have in mind for the attribute map?
> Can some common attributes be included in the proposal?

So far I've only used the attributes map to store a `fuzzy` flag, like the example I put in the spec. When that flag is on the messages we display to users mention that the amount is approximate.