Sakamakon PAC na Windows na iya daidaita hannun R curl

A Windows, fakitin R curl yana bayar da ie_get_proxy_for_url don samun shawarar tsarin don wata manufa. Ga manufar da ke mayar da ƙarshen wurin proxy guda ɗaya da ake tallafawa:

target <- 'https://data.example/report.csv'
selected <- curl::ie_get_proxy_for_url(target)
handle <- curl::new_handle(
  proxy = if (is.null(selected)) '' else selected
)
result <- curl::curl_fetch_memory(target, handle = handle)

Mataimakin na iya kimanta tsarin kai-tsaye ko ganowa. Wannan binciken zai iya ɗaukar lokaci, domin samun da gudanar da rubutun PAC na iya buƙatar aikin cibiyar sadarwa.

Sakamakon NULL yana nufin ba a zaɓi proxy ba. Misalin yana mai da wannan sakamakon zuwa zaɓin proxy mara komai domin libcurl kada ya maye gurbin proxy na muhalli da aka gada.

Duba sakamakon da ke ɗauke da taswirar yarjejeniya ko 'yan takara da yawa kafin ka ɗauke shi a matsayin ƙarshen wurin libcurl guda ɗaya. Jerin da wurin ajiyar tsari na Windows ya mayar ba lallai ba ne ingantaccen URL na proxy guda ɗaya.

Maimaita zaɓin don wasu manufofi lokacin da manufar za ta iya tafiyar da su daban. Kada ka kimanta masauki ɗaya ka adana sakamakonsa a matsayin hanyar HTTP da HTTPS ta duniya.

Binciken yana zaɓar hanya, ba asalin proxy ba. Daidaita asusu da hanyar tabbatarwa da ake tallafawa a kan hannun idan an buƙata. Babu buƙatar buɗe sararin suna na curl da maye gurbin new_handle a duniya.