REST API

Setup OAuth application

Open https://apps.twitter.com and create new applicaiton. You will need security tokens in order to read from Twitter REST API.

Authentificate

First we have to authentificate. Copy paste consumer key, consumer secret, token and token secret from Twitter application you have created in previous step.

We will use httr package to do OAuth authentification.

library(httr)

app = oauth_app(
    "twitter",
    key = "yourConsumerKey",
    secret="yourConsumerSecret"
)
sign = sign_oauth1.0(
    app,
    token = "yourToken",
    token_secret = "yourTokenSecret"
)

response = GET("https://api.twitter.com/1.1/statuses/home_timeline.json", sign)

Now we want to get the JSON value from the response. We will use rjson package for that.

install.packages("rjson")
library(rjson)

json = content(response)

prettyJson = jsonlite::fromJSON(toJSON(json))

Next step could to study Twitter documentation to find what is possible to get from there.