https://r-lib.r-universe.dev/httrhttps://r-lib.r-universe.dev/api/packages/httrhttps://r-lib.r-universe.dev/httr/httr.pdfhttps://r-lib.r-universe.dev/httr/doc/manual.htmlhttps://r-lib.r-universe.dev/httr/NEWShttps://r-lib.r-universe.dev/httr/NEWS.txthttps://r-lib.r-universe.dev/httr/citationhttps://r-lib.r-universe.dev/httr/citation.txthttps://r-lib.r-universe.dev/httr/citation.cffhttps://r-lib.r-universe.dev/httr/doc/api-packages.Rmdhttps://r-lib.r-universe.dev/articles/httr/api-packages.htmlhttps://r-lib.r-universe.dev/httr/doc/quickstart.Rmdhttps://r-lib.r-universe.dev/articles/httr/quickstart.htmlhttps://r-lib.r-universe.dev/httr/doc/secrets.Rmdhttps://r-lib.r-universe.dev/articles/httr/secrets.html