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FastAPI Dependency Injection
Test your grasp of dependency management and middleware.
1. What is the primary object used in FastAPI to declare dependencies in path operation parameters?
Inject
Depends
Dependency
Require
2. Which of the following can serve as dependencies in FastAPI? (Select all that apply)
Synchronous functions
Asynchronous functions
Classes with __call__ method
Pydantic models
3. FastAPI dependencies can only be used in path operation functions.
True
False
4. What does the acronym 'DI' stand for in the context of FastAPI?
5. Which of the following is a common use case for FastAPI dependencies? (Select the best answer)
Database connection management
Frontend rendering
JavaScript execution
Image processing
6. What are characteristics of yield dependencies in FastAPI? (Select all that apply)
They can run code before returning the dependency value
They can run cleanup code after the response is sent
They must be synchronous
They are declared using the yield keyword
7. A dependency in FastAPI can depend on another dependency, creating a dependency graph.
True
False
8. What parameter in FastAPI path operation decorators is used to specify dependencies that should run for every request to that path, without being injected into the function?
9. In FastAPI, how is a dependency typically declared as a parameter in a path operation function?
By adding a 'dependency' attribute to the parameter
By using Depends() as the parameter's default value
By prefixing the parameter name with 'dep_'
By using the @depends decorator on the parameter
10. Which of the following can be achieved using FastAPI dependencies? (Select all that apply)
Authentication and authorization checks
Caching responses
Managing database transactions
Defining API routes
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