September 2018
Intermediate to advanced
398 pages
9h 43m
English
Content preview from Scala Programming Projects
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Putting it all together
At this point, we can read transactions from the REST API, transform the JSON payload in Dataset[Transaction], and save it to parquet. It is time to put all these pieces together.
The Bitstamp API allows us to get the transactions that happened in the last 24 hours, in the last hour, or in the last minute. At the end of the day, we would like to build an application that regularly fetches and saves new transactions for long-term analysis. This application is our batch layer, and it is not meant to get real-time transactions. Therefore, it will be enough to get the transactions for the last hour. In the next chapter, we will build a speed layer to process the live transactions.
Our BatchProducer application will work ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.