In this video, Julien Ponge takes a deep dive into Vert.x core APIs, reactive SQL client, chaos engineering and resilience of HTTP client, as well as real-time web apps.
This part of the article series delves into using map to transform an object contained in an Option and how to chain optional values together using flatMap.
By Jean Georges Perrin
This is the third in a series of 4 articles on the topic of ingesting data from files with Spark. This section deals with ingesting a XML file.