# Advanced Dependencies

## Parameterized dependencies

All the dependencies we have seen are a fixed function or class.

But there could be cases where you want to be able to set parameters on the dependency, without having to declare many different functions or classes.

Let's imagine that we want to have a dependency that checks if the query parameter `q` contains some fixed content.

But we want to be able to parameterize that fixed content.

            List<String> dependents = sorter.getDependents(id);

            if (dependents != null && !dependents.isEmpty()) {
                for (String dependentId : dependents) {
                    if (!buildSuccessesByProject.containsKey(dependentId)
                            && !buildFailuresByProject.containsKey(dependentId)) {
                        blackList(dependentId);
                    }
                }

under the License.
-->

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven</groupId>
  <artifactId>maven-project-test</artifactId>
  <name>Maven</name>
  <version>1.0-beta-9</version>
  <dependencies>

    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>scope-default</artifactId>
      <version>1.0</version>
    </dependency>

    <dependency>
      <groupId>maven-test</groupId>

**FastAPI** includes utilities for all these OAuth2 authentication flows in `fastapi.security.oauth2`.

## `Security` in decorator `dependencies`

    /**
     * Shortcut for {@code getService(DependencyResolver.class).collect(...)}
     *
     * @param artifact artifact for which to get the dependencies, including transitive ones
     * @param scope the {link PathScope} to collect dependencies, must not be {@code null}
     * @return root node of the dependency graph for the given artifact
     *

You can define dependencies that in turn can define dependencies themselves.

In the end, a hierarchical tree of dependencies is built, and the **Dependency Injection** system takes care of solving all these dependencies for you (and their sub-dependencies) and providing (injecting) the results at each step.

            List<Dependency> dependencies,
            boolean management,
            ModelBuildingRequest request) {
        Severity errOn30 = getSeverity(request, ModelBuildingRequest.VALIDATION_LEVEL_MAVEN_3_0);

        String prefix = management ? "dependencyManagement.dependencies.dependency." : "dependencies.dependency.";

        for (Dependency d : dependencies) {

    - tutorial/body-updates.md
    - Dependencies:
      - tutorial/dependencies/index.md
      - tutorial/dependencies/classes-as-dependencies.md
      - tutorial/dependencies/sub-dependencies.md
      - tutorial/dependencies/dependencies-in-path-operation-decorators.md
      - tutorial/dependencies/global-dependencies.md
      - tutorial/dependencies/dependencies-with-yield.md
    - Security:

                enabled = enableTriggers
            }
        }
    }

    dependencies {
        if (!stage.runsIndependent && prevStage != null) {
            dependOnPreviousStageTrigger(model, prevStage, os)
        }

        snapshotDependencies(dependencies)
    }
})

fun Dependencies.dependOnPreviousStageTrigger(model: CIBuildModel, prevStage: Stage, os: Os? = null) {

        assertViolations(result, 0, 2, 0);

        assertContains(
                result.getErrors().get(0), "'dependencies.dependency.version' for test:b:jar must be a valid version");
        assertContains(
                result.getErrors().get(1),
                "'dependencies.dependency.version' for test:c:jar must not contain any of these characters");
    }

    @Test