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Dependency Injection

Dependency Injection continued

The previous post on Dependency Injection in Go stirred up some heated responses on Reddit and Twitter. I’m writing this post to illustrate some good benefits of Dependency Injection in Go when applied to some benefit. I will also demonstrate an additional, declarative DI pattern of the Factory model presented in the previous installment on this subject.

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Dependency Injection patterns in Go

Dependency Injection is a powerful approach to providing your applications with required objects and configuration instead of declaring them in code. This injection is usually used to provide mock objects for unit testing, or to run the same application in multiple environments.

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API development methodology
I needed a way to create and connect only to those services I actually need to run. If I only need to connect to Redis, I don’t need to connect to MySQL as well. Leverage PHP language constructs to this end. Injecting dependencies should be language driven, not programmer driven. I want you to think about this. Language driven vs. programmer driven - this is the main point. When it comes to programmer driven dependency injection, it will happen that your programmer(s) will be using their time writing methods that will get, set and report missing dependencies.
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