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Scala Programming Projects

You're reading from   Scala Programming Projects Build real-world projects using popular Scala frameworks such as Play, Akka, and Spark

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Product type Paperback
Published in Sep 2018
Publisher Packt
ISBN-13 9781788397643
Length 398 pages
Edition 1st Edition
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Authors (2):
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Mikael Valot Mikael Valot
Author Profile Icon Mikael Valot
Mikael Valot
Nicolas Jorand Nicolas Jorand
Author Profile Icon Nicolas Jorand
Nicolas Jorand
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Toc

Table of Contents (13) Chapters Close

Preface 1. Writing Your First Program FREE CHAPTER 2. Developing a Retirement Calculator 3. Handling Errors 4. Advanced Features 5. Type Classes 6. Online Shopping - Persistence 7. Online Shopping - REST API 8. Online Shopping - User Interface 9. Interactive Browser 10. Fetching and Persisting Bitcoin Market Data 11. Batch and Streaming Analytics 12. Other Books You May Enjoy

Analyzing streaming transactions with Zeppelin

At this point, if you have not done so yet, you should start the following processes on your machine. Please refer to the previous sections if you are not sure how to start them:

  • Zookeeper
  • Kafka broker
  • The StreamingProducerApp consuming live BTC/USD transactions and pushing them to a Kafka topic named transactions.
  • Apache Zeppelin

Reading transactions from Kafka

Using your browser, create a new Zeppelin Notebook named Streaming, and  then type the following code in the first cell:

case class Transaction(timestamp: java.sql.Timestamp,
date: String,
tid: Int,
price: Double,
...
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