Consuming the Twitter Streaming API with Ruby and MongoDB
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The document discusses consuming the Twitter Streaming API and storing tweets in MongoDB using Ruby. It covers connecting to the Twitter Streaming API, retrieving tweets in JSON format, and inserting the tweets into a MongoDB database using the mongo and bson_ext Ruby gems. The presentation also touches on limitations of the Twitter API, considerations for using MongoDB, and deploying the application on services like Heroku and MongoLab.
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Consuming the Twitter Streaming API with Ruby and MongoDB
- 1. Consuming the Twitter Streaming API with Ruby and MongoDB Jeff Linwood Lone Star Ruby Conference V August 12, 2011 http://www.jefflinwood.com @jefflinwood Friday, August 12, 2011
- 2. Goals • Watch for any tweet that contains certain keywords • Store those tweets into the MongoDB database Friday, August 12, 2011
- 3. Demo (@aplusk) Friday, August 12, 2011
- 4. Twitter Streaming API+ Mongo DB • Twitter Streaming API • MongoDB • Not a web application Friday, August 12, 2011
- 5. The many APIs of Twitter • Twitter Streaming API • User Streams • Site Streams (for the big boys) • REST API • Search API Friday, August 12, 2011
- 6. Twitter Streaming API • Keywords • Users • Locations Great photo is by rachel_thecat http://www.flickr.com/photos/23209605@N00/2786126623/ Friday, August 12, 2011
- 7. TweetStream gem by Michael Bleigh https://github.com/intridea/tweetstream Friday, August 12, 2011
- 8. Connecting to the Twitter Streaming API • JSON responses • HTTP Basic Authentication • One stream per account (dev/prod) • Leave it open! • Don’t constantly reconnect, and if you do, back off Friday, August 12, 2011
- 9. Limitations of Twitter Streaming API • 400 Keywords • 5,000 User Ids • 25 Location Boxes • Can ask Twitter for increased access Friday, August 12, 2011
- 10. A Tweet, in JSON Friday, August 12, 2011
- 11. Intro to MongoDB • NoSQL - what does that mean? • Great fit for JSON-oriented applications • If you don’t know your schema in advance • Query language • Map Reduce Friday, August 12, 2011
- 12. Storing data in MongoDB • Native format of MongoDB is BSON, similar to JSON • Connect to a database (similar to MySQL) • Connect to a collection (created if it doesn’t exist) • Insert JSON (in our case, a tweet) Friday, August 12, 2011
- 13. MongoDB + Ruby • mongo gem • bson_ext gem • http://www.mongodb.org/display/DOCS/ Ruby+Language+Center Friday, August 12, 2011
- 14. Considerations for MongoDB • Tweets - very verbose JSON • Date format in Tweets not same as MongoDB • May want to pre-process Tweets • Can use both MongoDB and MySQL in same app if you want Friday, August 12, 2011
- 15. Here’s the code • Okay, the whole thing is really done in about three lines. Friday, August 12, 2011
- 16. Where do you run this? • Command line • Your own server • Heroku + MongoLab • Other cloud services Friday, August 12, 2011
- 17. MongoLab Friday, August 12, 2011
- 18. Now what? • Step 1: Collect Tweets • Step 2: ???? • Step 3: Profit! Friday, August 12, 2011
- 19. To Learn More • https://dev.twitter.com/docs/streaming-api/ concepts • http://www.mongodb.org/ • https://github.com/jefflinwood/Tweeter- Keeper • http://www.jefflinwood.com/ • @jefflinwood on Twitter Friday, August 12, 2011