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Motivation
Continue with the Previous postHere I expand the instructions for Windows and Linux (I don’t have a Mac -laptop to test on OS X).
Required software
- Mozilla Firefox and Geckodriver: Web browser and remote control program
- Relselenium: R-selenium integration
- Rvest: HTML processing
- DPLYR: To load the pipe operator (can be used later for data cleaning)
- PURRR: ITERATION (ie repeated edits)
Mozilla Firefox and Geckodriver
Windows
I installed Mozilla Firefox from the Official website And followed the installation program.
For Gekkodriver I downloaded it from here For Windows 64-bit and stored “Geckodriver.exe” to a new folder “C:”. Then I had to add the folder to the path as follows:
- Press Win + S
- Type “Environmental variables”
- Open “edit the system environment variables”.
- Click on “variables of environmental variables”.
- Search and select in “System variables” and select “PAD” and then click “Edit”.
- Click on “New” and add “C:” without quotes
- Click OK to save.
Then restart Rstudio and close Powershell when it is open. Not installing Geckodrive would only result in this error message in R: “Can’t create a new service kodrigver service.”
Linux
I use Manjaro, so Firefox is the standard browser.
To install Geckodriver I used these assignments:
wget https://github.com/mozilla/geckodriver/releases/download/v0.36.0/geckodriver-v0.36.0-linux64.tar.gz -O ~/Downloads/geckodriver.tar.gz tar -xzf ~/Downloads/geckodriver.tar.gz -C ~/Downloads rm ~/Downloads/geckodriver.tar.gz sudo mv ~/Downloads/geckodriver /usr/local/bin/ geckodriver --version
The output must show “Geckodriver 0.36.0”.
Relenium and Selenium Server
I have installed Relenium from the R console:
if (!require(RSelenium)) install.packages("RSelenium")
# or
remotes::install_github("ropensci/RSelenium")I tried to start Selenium as mentioned in the official guide And it didn’t work.
I downloaded selenium server from This link.
For the rest of the packages:
if (!require(rvest)) install.packages("rvest")
if (!require(dplyr)) install.packages("dplyr")
if (!require(purrr)) install.packages("purrr")Perform Selenium server
These assignments work on Powershell (Windows) and SH/Bash/ZSH (Linux):
cd Downloads java -jar selenium-server-standalone-3.9.1.jar
The Selenium Server body must be executed every time for Performing the R code unless the terminal remains open.
Control of the browser
From Rstudio (the same for an R -terminal), I could arrange the browser of R:
library(RSelenium) library(rvest) library(dplyr) library(purrr) rmDr <- remoteDriver(port = 4444L, browserName = "firefox") rmDr$open(silent = TRUE) url <- "https://pacha.dev/blog" rmDr$navigate(url)
This should display a new Firefox window and show my blog. The rest of the steps are the same as in the Original post Where I show practical examples.
I hope this is useful 🙂
Related
#Step #step #manual #Relenium #Firefox #Linux #Windows #RBloggers