Download all Documents from Google Drive with R

March 17, 2014

(This article was first published on theBioBucket*, and kindly contributed to R-bloggers)

A commentator on my blog recently asked if it is possible to retrieve all direct links to your Google Documents. And indeed it can be very easily done with R, just like so:

# you'll need RGoogleDocs (with RCurl dependency..)
install.packages("RGoogleDocs", repos = "", type="source")

gpasswd = "mysecretpassword"
auth = getGoogleAuth("kay.cichini @", gpasswd)
con = getGoogleDocsConnection(auth)

CAINFO = paste(system.file(package="RCurl"), "/CurlSSL/ca-bundle.crt", sep = "")
docs <- getDocs(con, cainfo = CAINFO)

# get file references
hrefs <- lapply(docs, function(x) return(x@access["href"]))
keys <- sub(".*/full/.*%3A(.*)", "\\1", hrefs)
types <- sub(".*/full/(.*)%3A.*", "\\1", hrefs)

# make urls (for url-scheme see:
# put format parameter for other output formats!
pdf_urls <- paste0("", keys)
doc_urls <- paste0("", keys, "/export?format=", "txt")

# download documents with your browser
gdoc_ids <- grep("document", types)
lapply(gdoc_ids, function(x) shell.exec(doc_urls[x]))

pdf_ids <- grep("pdf", types, = T)
lapply(pdf_ids, function(x) shell.exec(pdf_urls[x]))

To leave a comment for the author, please follow the link and comment on their blog: theBioBucket*. offers daily e-mail updates about R news and tutorials on topics such as: Data science, Big Data, R jobs, visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more...

If you got this far, why not subscribe for updates from the site? Choose your flavor: e-mail, twitter, RSS, or facebook...

Comments are closed.


Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)