the 'wininet' method for ftp:// URLs is defunct

[TugayArslan]

'C:/Users/A1059380/AppData/Local/Temp/RtmpcbhB7B/hourly_air_temperature_historical_stundenwerte_TU_00003_19500401_20110331_hist.zip'
Warning: 1 Download has failed (out of 1). download.file error:
the 'wininet' method for ftp:// URLs is defunct

I get this error when I use selectDWD() then dataDWD(). I have R 4.2 installed.

[TugayArslan]

dataDWD(..., dfargs = list(method="curl")

This fixes the issue, but dataDWD should have this failsafe mechanism in place if the initial config on download.file doesn't work.

[brry]

Thanks for reporting with a specific example! I saw the warning plop up a few times in updating the indexes but could not locate it yet.

Both of the following code examples work fine on my Windows PC:

library(rdwd)
link <- selectDWD("", "hourly", "air_temperature", "h", id=3)
airt <- dataDWD(link, dir=locdir())
airt <- dataDWD(link, dir=locdir(), dfargs=list(method="curl"))

I could add a direct method argument like dbin, maybe defaulting to getOption("rdwdmethod", default="auto").

Or should we hint to (or default to) options(download.file.method="curl")?

[brry]

I added an argument method defaulting to getOption("download.file.method")