## Dependency Injection { #dependency-injection }

Using `BackgroundTasks` also works with the dependency injection system, you can declare a parameter of type `BackgroundTasks` at multiple levels: in a *path operation function*, in a dependency (dependable), in a sub-dependency, etc.

     */
    public static final String CONSTITUTES_BUILD_PATH = "constitutesBuildPath";

    /**
     * When an artifact is both a regular dependency and a transitive dependency
     * of a processor, this property records the derived processor type ID.
     *
     * @since 4.0.0
     */
    public static final String PROCESSOR_TYPE = "maven.processor.type";

    /**

* full-stack: full-stack (do not translate to "de pila completa")
* stack: stack (do not translate to "pila")
* loop (as in async loop): loop (do not translate to "bucle" or "ciclo")
* hard dependencies: dependencias obligatorias (do not translate to "dependencias duras")
* locking: locking (do not translate to "bloqueo")
* testing (as in software testing): escribir pruebas (do not translate to "probar")

      - name: Setup uv
        uses: astral-sh/setup-uv@v7
        with:
          enable-cache: true
          cache-dependency-glob: |
            pyproject.toml
            uv.lock
      - name: Install GitHub Actions dependencies
        run: uv sync --locked --no-dev --group github-actions
      - name: Deploy Docs Status Pending
        run: uv run ./scripts/deploy_docs_status.py
        env:

  <modelVersion>4.0.0</modelVersion>

  <groupId>ut.simple</groupId>
  <artifactId>dependency</artifactId>
  <version>1.0</version>

  <name>Simple Unit Test Dependency</name>

        logger.warn(
                "The POM for {} is invalid, transitive dependencies (if any) will not be available: {}",
                event.getArtifact(),
                event.getException().getMessage());
    }

    @Override
    public void artifactDescriptorMissing(RepositoryEvent event) {
        logger.warn("The POM for {} is missing, no dependency information available", event.getArtifact());
    }

#    // missing class!
#    'com.missing.dependency.WTF',
#    // ...
#   ]
#
# Wildcards are not allowed, excludes must be exact. The build also fails with
# the message "Invalid exclusions, nothing is wrong with these classes" if
# extraneous classes are in the excludes list, this ensures the list is
# up-to-date, and that each module accurately documents the evil things
# that its dependencies do.
#

        // Before we update the version of the artifact, we need to know
        // whether we are working on a transitive dependency or not. This
        // allows depMgmt to always override transitive dependencies, while
        // explicit child override depMgmt (viz. depMgmt should only
        // provide defaults to children, but should override transitives).

Hay utilidades para configurarlo fácilmente que puedes usar directamente en tu aplicación de **FastAPI** (proporcionadas por Starlette).

## Instala dependencias { #install-dependencies }

Asegúrate de crear un [entorno virtual](../virtual-environments.md), activarlo e instalar `jinja2`:

<div class="termy">

```console
$ pip install jinja2

---> 100%
```

</div>

    @Inject
    private ProjectDependenciesResolver resolver;

    @Override
    protected String getProjectsDirectory() {
        return "src/test/projects/project-dependencies-resolver";
    }

    @Test
    void testSystemScopeDependencies() throws Exception {
        MavenSession session = createMavenSession(null);
        MavenProject project = session.getCurrentProject();