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Difference Between Dagger, Hilt, Koin and Pure Dependency Injection

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It is often an overwhelming task to choose the most suitable dependency injection framework for your project, as there are a variety of popular and widely used frameworks on the market. Dagger, Hilt, Koin, and Pure Dependency Injection are some of the most popular frameworks currently in use. 

What is Dagger?

Dagger is an open-source, lightweight dependency injection framework from Google. It is designed to help developers write more maintainable and testable code by separating the business logic from the framework code. Dagger uses annotation processing to generate the code for you, and it is highly optimized for Android applications. One of the main benefits of Dagger is that it allows developers to easily customize the generated code, which makes it very powerful. However, Dagger is not the most beginner-friendly option and can be complex to set up and use.

What is Hilt?

Hilt is a dependency injection framework developed by Google. It is based on Dagger, but it simplifies the setup and configuration process. Hilt provides a set of components and annotations that make it easier to configure Dagger, and it also provides a set of best practices for structuring your code. Hilt is designed to be a more beginner-friendly option, and it can be used in both Android and web applications. The downside to Hilt is that it can be more resource-intensive than Dagger, and it is not as customizable.

What is Koin?

Koin is an open-source dependency injection framework created by the developers of the Android application, Kotlin. Koin is designed to be lightweight and easy to use, and it is optimized for Kotlin applications. Koin uses a DSL (domain-specific language) to define dependencies, and it provides a rich set of features that make it easy to customize the generated code. One of the main benefits of Koin is that it is highly optimized for Kotlin applications, which makes it a great choice for developers using the language.

What is Pure Dependency Injection?

Pure Dependency Injection is a relatively new approach to dependency injection. Unlike the other frameworks, Pure Dependency Injection does not rely on annotations or DSLs. Instead, it uses a simple and straightforward approach to dependency injection. Pure Dependency Injection provides an easy way to define and configure dependencies, and it is designed to be lightweight and easy to use. The downside to Pure Dependency Injection is that it does not provide the same level of customization as the other frameworks, and it is not as optimized for Android and web applications.

Difference Table

Dagger

Hilt

Koin 

Pure Dependency Injection

Dagger is a dependency injection framework built by Google. Hilt is a dependency injection framework built by Google. Koin is a dependency injection framework built by the Kotlin community. Pure Dependency Injection is a manual dependency injection technique that does not use any framework or library.
It uses a compile-time approach to generate boilerplate code for dependency injection. Hilt uses a compile-time approach to generate boilerplate code for dependency injection. Koin uses a runtime approach to generate boilerplate code for dependency injection. Pure Dependency Injection does not generate any code for dependency injection.
Dagger supports both constructor and field injection. Hilt provides support for ViewModel injection, Activity and Fragment scopes, and assisted injection. Koin provides support for ViewModel injection, Activity and Fragment scopes, and assisted injection. Pure Dependency Injection does not provide any additional features like ViewModel injection, Activity and Fragment scopes, or assisted injection.
Dagger uses no reflection, so it is fast and more secure. Hilt uses reflection to generate code at compile time, making it fast and secure. Koin uses reflection to generate code at runtime, making it slow and insecure. Pure Dependency Injection does not use any libraries or frameworks, so it is fast and secure.
Dagger is a dependency injection framework that uses Java annotations to generate code to satisfy dependencies. Hilt supports only constructor injection. Koin supports constructor and property injection. Pure Dependency Injection supports only constructor injection.
Dagger generates code at compile time, making it easy to debug and trace. Hilt is a dependency injection framework that uses custom annotations to generate code to satisfy dependencies. Koin is a dependency injection framework that uses Kotlin DSL to generate code to satisfy dependencies. Pure Dependency Injection requires the developer to manually create code to satisfy dependencies.
Dagger supports both constructor and field injection. Hilt supports both constructor and field injection. Koin supports both constructor and field injection. Pure Dependency Injection supports only constructor injection.
Dagger generates code based on annotations and abstract classes, which can be used to inject dependencies. Hilt generates code based on annotations and abstract classes, which can be used to inject dependencies. Koin generates code based on objects and functions, which can be used to inject dependencies. Pure Dependency Injection requires the developer to manually create objects and wire them together.
Dagger is a complex and difficult-to-maintain framework. Hilt is an easier-to-use and maintain alternative to Dagger. Koin is a simpler and easier-to-maintain alternative to Dagger and Hilt. Pure Dependency Injection is the most difficult to use and maintain of all the frameworks.

                                                   


Last Updated : 24 Dec, 2022
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