[GNC] Currency exchange rates retrieval with GC 3.2

[Manfred Usselmann]

Hi, 

I'm using GnuCash 3.2 with Finance::Quote 1.47 on Ubuntu 18.04. 

When trying to download currency exchange rates this fails with "Unknown
error". 

I've registered an ALPHAVANTAGE_API_KEY and entered it on the settings
screen. 

Some tests from the command line: 

$ GNC-FQ-DUMP -V ALPHAVANTAGE CHFEUR=X
Finance::Quote fields Gnucash uses:
symbol: CHFEUR=X <=== required
date: 09/06/2018 <=== recommended
currency: USD <=== required
last: 0.8842 <=\ 
nav: <=== one of these
price: <=/ 
timezone: <=== optional 

All fields returned by Finance::Quote for stock CHFEUR=X 

stock field value
----- ----- -----
CHFEUR=X close: 0.8842
CHFEUR=X currency: USD
CHFEUR=X currency_set_by_fq: 1
CHFEUR=X date: 09/06/2018
CHFEUR=X high: 0.8847
CHFEUR=X isodate: 2018-09-06
CHFEUR=X last: 0.8842
CHFEUR=X low: 0.8840
CHFEUR=X method: alphavantage
CHFEUR=X open: 0.8845
CHFEUR=X success: 1
CHFEUR=X symbol: CHFEUR=X
CHFEUR=X volume: 0 

$ ECHO '(ALPHAVANTAGE "CSCO")' | GNC-FQ-HELPER
(("CSCO" (symbol . "CSCO") (gnc:time-no-zone . "2018-09-05 12:00:00")
(last . 47.2700) (currency . "USD"))) 

Thanks and regards,
Manfred 

-- 
 Manfred Usselmann <manfred at usselmann.de>