### Paso 2: crea un "instance" de `FastAPI`

```Python hl_lines="3"
{!../../../docs_src/first_steps/tutorial001.py!}
```

Aquí la variable `app` será un instance de la clase `FastAPI`.

Este será el punto de interacción principal para crear todo tu API.

Esta `app` es la misma a la que nos referimos cuando usamos el comando de `uvicorn`:

        for (int i = 0; i < path.length; i++) {
            if (i > 0) {
                pathBuilder.append("/");
            }
            pathBuilder.append(path[i]);
        }
        return new File(baseDirFactory.create(), pathBuilder.toString()).toPath().normalize().toFile();
    }

    @Override
    public File newTemporaryDirectory(String... path) {
        File dir = newTemporaryFile(path);
        forceMkdir(dir);

# External Links and Articles

**FastAPI** has a great community constantly growing.

There are many posts, articles, tools, and projects, related to **FastAPI**.

Here's an incomplete list of some of them.

!!! tip

If not, follow these step to initialize a new Gradle project on GitHub.

=== Create a new GitHub repository for your project

Via the GitHub user interface, create a new repository named `github-actions-gradle-sample`.

image::ci-systems/github-actions-create-repository.png[Create new GitHub repository]

=== Clone the repository locally

[listing.terminal.sample-command]
----

=====

== Step 2. Add another Subproject to the Build
Imagine that our project is growing and requires a custom library to function.

Let's create this imaginary `lib`.
First, create a `lib` folder:

[source,text]
----
mkdir lib
----

[source,text]
----
cd lib
----

Create a file called `build.gradle(.kts)` and add the following lines to it:

[.multi-language-sample]
=====
.lib/build.gradle.kts

				// File disappeared between readdir and stat.
				// Treat as if it didn't exist.
				continue
			}
			if err != nil {
				return nil, dirents, nil, err
			}
			dirents = append(dirents, de)
		} else {
			info, err := lstat(f.name + "/" + string(name))
			if IsNotExist(err) {
				// File disappeared between readdir + stat.
				// Treat as if it didn't exist.
				continue
			}
			if err != nil {

		canonicalName := n.Info.Name
		// Create the key to the nodeMapKey.
		namedEdge := NamedCallEdge{
			CallerName:     canonicalName,
			CallSiteOffset: n.Info.Lineno - n.Info.StartLine,
		}

		for _, e := range n.Out {
			totalWeight += e.WeightValue()
			namedEdge.CalleeName = e.Dest.Info.Name
			// Create new entry or increment existing entry.
			weight[namedEdge] += e.WeightValue()
		}

				}},
			},
			attrs:         admission.NewAttributesRecord(nil, nil, gvk("autoscaling", "v1", "Scale"), "ns", "name", gvr("extensions", "v1beta1", "deployments"), "", admission.Create, &metav1.CreateOptions{}, false, nil),
			expectMatches: false,
		},
		{
			name: "treat empty ResourceRules as match",
			criteria: &v1.MatchResources{
				NamespaceSelector: &metav1.LabelSelector{},
				ObjectSelector:    &metav1.LabelSelector{},

        when:
        fails(*tasks)

        then:
        failure.assertHasDescription("Directory '$testDirectory' does not contain a Gradle build.")
        failure.assertHasResolutions(
            "Run gradle init to create a new Gradle build in this directory.",
            STACKTRACE_MESSAGE,
            INFO_DEBUG,
            GET_HELP) // Don't suggest running with --scan for a missing build

        testDirectory.assertIsEmptyDir()

	obj1.Spec.MinReadySeconds = 2
	tester.Update(obj1)
	tracker.WaitOrdered("update/1")
	assert.Equal(t, tester.Get(obj1.Name, obj1.Namespace), obj1)

	// Create some more objects
	tester.Create(obj3)
	tester.Create(obj2)
	tracker.WaitOrdered("add/2")
	assert.Equal(t, tester.Get(obj2.Name, obj2.Namespace), obj2)
	// We should not see obj3, it is filtered