How to Autopost an Rmarkdown File to Blogger

The Rtisan

Thursday, April 2, 2015

The Challenge

I’d like to create a blog that I can automatically post an Rmarkdown file daily.

Step 1

My first solution was to use the RWordPress package in R, but it was not available for my version. My next solution was to automatically post to a blog with an email, which is allowed by Blogger.com (and I’m assuming other blog sites). My first step was therefore to set up a blog with blogger.com.

Step 2

After setting up a blogger account and creating a blog, I needed to set up a blog email address to receive my Rmarkdown files. I used this Google Support site to walk me through the process.

Step 3

Now that I’ve created my blog and my blog email address, I need to set up an R script to knit the Rmarkdown file to html then mail the file to my blog email address. In mailR, keep in mind that html = TRUE and you can post pictures using attach.files.

##  library(mailR)
##  library(knitr)
##  knit2html("blogPosts.Rmd", options = "")
##  subject_line <- "How to Autopost an Rmarkdown File to Blogger"
##  send.mail(from = "myEmail@work.com",
##      to = "mySecrectEmail@blogger.com",
##      subject = subject_line,
##      body = "blogPosts.html",
##      html = TRUE,
##      smtp = list(host.name = "smtp.gmail.com", port = 465,
##      user.name = "myEmail@work.com",
##      passwd = "*******", ssl = TRUE),
##    attach.files = blogPostPicture.png,
##      authenticate = TRUE, send = TRUE)

Next we save the above script as post2Blog.R and schedule the script to run daily in Windows Task Scheduler.

• Open Task Scheduler and Create a new task
• Under Action tab: use path to Rscript.exe in Program/Script field
• Use post2Blog.R in the Add Attributes field
• Use path to post2Blog.R in the Start in field

Complete