(character(1))
The database code to query (e.g., "FM08" for foreign exchange rates). See the
API manual for available databases.
code
(character())
One or more series codes to query (e.g., "FXERD01" for USD/JPY spot rate). Maximum 250
codes per request. All codes must have the same frequency. Use boj_metadata() to find
available codes.
start_date
(NULL | character(1) | integer(1))
Start date of the data. Format depends on frequency: "YYYYMMDD" or YYYY for daily,
"YYYYMM" for monthly, "YYYYQQ" for quarterly (where QQ is 01-04), "YYYY" for annual.
If NULL, all available data is returned. Default NULL.
end_date
(NULL | character(1) | integer(1))
End date of the data, in the same format as start_date. If NULL, data up to the latest
available date is returned. Default NULL.
lang
(character(1))
Language for series names, either "en" or "jp". Default "en".