November 2018
Intermediate to advanced
346 pages
8h 12m
English
Content preview from Hands-On Dependency Injection in Go
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Applying method injection
In this section, we are going to improve our ACME registration service by applying method injection with perhaps my favorite package in the entire Go standard library, the context package. Central to this package is the Context interface, which describes itself as follows:
A context carries a deadline, cancellation signal, and request-scoped values across API boundaries. Its methods are safe for simultaneous use by multiple goroutines
So, why do I love it so much? By applying method injection, with context as the dependency, I am able to build my processing logic in such a way that it can all be automatically canceled and cleaned up.
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.