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Global Dependencies
For some types of applications you might want to add dependencies to the whole application.
Similar to the way you can add dependencies to the path operation decorators{.internal-link target=_blank}, you can add them to the FastAPI application.
In that case, they will be applied to all the path operations in the application:
{* ../../docs_src/dependencies/tutorial012_an_py39.py hl[16] *}
And all the ideas in the section about adding dependencies to the path operation decorators{.internal-link target=_blank} still apply, but in this case, to all of the path operations in the app.
Dependencies for groups of path operations
Later, when reading about how to structure bigger applications (Bigger Applications - Multiple Files{.internal-link target=_blank}), possibly with multiple files, you will learn how to declare a single dependencies parameter for a group of path operations.