`dependencies`¶

Here's the reference for the FastAPI dependency factory functions.

You can import them directly from fastapi_toolsets.dependencies:

from fastapi_toolsets.dependencies import PathDependency, BodyDependency

`fastapi_toolsets.dependencies.PathDependency(model, field, *, session_dep, param_name=None)` ¶

Create a dependency that fetches a DB object from a path parameter.

Parameters:

Name	Type	Description	Default
`model`	`type[ModelType]`	SQLAlchemy model class	required
`field`	`Any`	Model field to filter by (e.g., User.id)	required
`session_dep`	`SessionDependency`	Session dependency function (e.g., get_db)	required
`param_name`	`str \| None`	Path parameter name (defaults to model_field, e.g., user_id)	`None`

Returns:

Type	Description
`ModelType`	A Depends() instance that resolves to the model instance

Raises:

Type	Description
`NotFoundError`	If no matching record is found

Example

UserDep = PathDependency(User, User.id, session_dep=get_db)

@router.get("/user/{id}")
async def get(
    user: User = UserDep,
): ...

`fastapi_toolsets.dependencies.BodyDependency(model, field, *, session_dep, body_field)` ¶

Create a dependency that fetches a DB object from a body field.