This is in continuation to my last blog Connecting to Twitter's REST API v1.1 with R - Part1, where I have already explained setting up Twitter account to access Twitter APIs from R platform. Here, we will look into creating handshake between R Studio and Twitter APIs.
We require few other details from Twitter Application. Open your application and go to Details Tab:
We will use these tokens (Request URL, Authorize URL, Access URL) while creating handshake with Twitter APIs from R.
The first and foremost important thing after this is to install R studio or simply R environment from here. I am not going deep into how to install R and other setups.
Install Package in R console:
To access Twitter APIs from R, you must install few packages in R. Go to R console and write the following code:
install.Packages("twitteR"). #This will install other dependent packages like ROAuth, RCurl, and others.
library(twitteR). #This will load the package required to access the Twitter APIs. It will load the dependent packages as well.
Create Authorization Object:
requestURL <- "<your Request URL as indicated in above figure>"
accessURL <- "<your Access URL as indicated in above figure>"
authURL <- "<your Authorize URL as indicated in above figure>"
consumerKey <- "<your API key from API keys tab in Twitter App>" # See my blog Part1
consumerSecret <- "<your API secret from API keys tab in Twitter App>" # See my blog Part1
Create Handshake Object:
Cred <- OAuthFactory$new(consumerKey=consumerKey,
Download CA certificate as follows:
Create Handshake using CA certificate:
Cred$handshake(cainfo = system.file("CurlSSL", "cacert.pem", package = "RCurl"))
You will get a response as follows, if your handshake is successful:
To enable the connection, please direct your web browser to:
When complete, record the PIN given to you and provide it here:
Copy the above URL and paste it in web browser. You will be asked to authorize the app:
Click on Authorize button. You will receive a key:
Copy this Key and paste it in the R console before hitting ENTER button.
Next, register this authorization:
This completes your authorization process. Now you are ready to go ahead in accessing the twitter APIs.
You can access any user's followers count as follows:
Now you can start your Data Mining and analysis using twitter data.
Thanks for reading my blog. Look forward for my next blog on R.