June 2016
Intermediate to advanced
290 pages
6h 45m
English
Content preview from Mastering JavaScript Design Patterns - Second EditionBecome 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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Service selector
Along the same lines as a façade we have the service selector pattern. In this pattern we have a service which fronts a number of other services. Depending on the message which arrives, a different service could be selected to respond to the initial request. This pattern is useful in upgrade scenarios and for experimentation. If you're rolling out a new service and want to ensure that it will function correctly under load then you could make use of the service selector pattern to direct a small portion of your production traffic to the new service while monitoring it closely. Another application might be for directing specific customers or groups of customers to a different service. The distinguishing factor could be anything ...
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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.