December 2015
Beginner to intermediate
122 pages
2h 23m
English
Content preview from Building Python Real time Applications with StormBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 4. Example Topology – Twitter
This chapter builds on the material from Chapter 3, Introducing Petrel. In this chapter, we'll build a topology that demonstrates a number of new features and techniques. In particular, we'll see how to:
- Implement a spout that reads from Twitter
- Build topology components based on third-party Python libraries
- Compute statistics and rankings over rolling time periods
- Read custom configuration settings from
topology.yaml - Use "tick tuples" to execute logic on a schedule
Twitter analysis
Most of you have heard of Twitter, but if you have not, check out how Wikipedia describes Twitter:
"an online social networking service that enables users to send and read short 140-character messages called "tweets"."
In 2013, users posted ...
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