8.22 Twitter’s APIs

1. REST API:
   • Queries for specific information about users and tweets
   • Search recent tweets
   • Examples: user profile, list of followers and friends, tweets generated by a given user (“timeline”), users lists, etc.
   • R library: tweetscores (also twitteR, rtweet)
2. Streaming API:
   • Connect to the “stream” of tweets as they are being published
   • Three streaming APIs:
     • Filter stream: tweets filtered by keywords
     • Geo stream: tweets filtered by location
     • Sample stream: 1% random sample of tweets

• R library: streamR
• Important limitation: tweets can only be downloaded in real time (exception: user timelines, 3,200 most recent tweets are available)