Able to explain what dependency injection is and what problem it solves

Question 1

dependency

Answer 1

A software dependency is

• a relationship between software components
• where one component relies on the other to work properly.
• For example, if a software application uses a framework to query a database, the application depends on that framework .

Question 2

Able to explain what dependency injection

Answer 2

Dependency injection is

• a design pattern used in web development
• to make code more flexible and manageable.
• It helps solve the problem of managing dependencies between different parts of a web application.

Question 3

dependency injection what problem it solves

Answer 3

example:

• Imagine you’re building a website,
• and different parts of the code need access to a database.
• Without dependency injection,
  • each component would directly create its own database connection
  • or access the database directly.
• It makes the code difficult to test and change.

Dependency injection solves this problem

• by introducing a separate object,
  
  • often called a “container” or “injector,” to manage the dependencies.
• Instead of each component creating its own dependencies,
  • the injector takes care of creating and providing the necessary dependencies
  • to the components that need them.

Question 4

dependency injection in the project

Answer 4

The constructor takes three parameters of types

• IUserDbServices,
• IConfiguration,
• IEmailServices,

and assigns them to the respective private fields _dbcontext, _configuration, and _emailServices.

• These interfaces are then used throughout the UsersDbController class to interact with the corresponding services..