```console
// Go to the home directory
$ cd
// Create a directory for all your code projects
$ mkdir code
// Enter into that code directory
$ cd code
// Create a directory for this project
$ mkdir awesome-project
// Enter into that project directory
$ cd awesome-project
```

Result (German):

```console
// Gehe zum Home-Verzeichnis
$ cd

        assertNotNull(res, "null graph after resolver");
        assertNotNull(res.getVertices(), "no vertices in the resulting graph after resolver");

        assertNotNull(res.getExcidentEdges(v1), "no edges in the resulting graph after resolver");

        assertEquals(4, res.getVertices().size(), "wrong # of vertices in the resulting graph after resolver");
        assertEquals(
                2,

    )
    if response.status_code != 200:
        logging.error(f"Response was not 200, after: {after}")
        logging.error(response.text)
        raise RuntimeError(response.text)
    data = response.json()
    if "errors" in data:
        logging.error(f"Errors in response, after: {after}")
        logging.error(data["errors"])
        logging.error(response.text)

		t.Fatalf("Blog should has three tags after Append")
	}

	if DB.Model(&blog).Association("SharedTags").Count() != 3 {
		t.Fatalf("Blog should has three tags after Append")
	}

	if DB.Model(&blog2).Association("SharedTags").Count() != 3 {
		t.Fatalf("Blog should has three tags after Append")
	}

	var tags []Tag
	DB.Model(&blog).Association("SharedTags").Find(&tags)

  /**
   * This is the same value as [exchange], but scoped to the execution of the network interceptors.
   * The [exchange] field is assigned to null when its streams end, which may be before or after the
   * network interceptors return.
   */
  internal var interceptorScopedExchange: Exchange? = null
    private set

But in this case, the same **FastAPI** application will handle the API and the authentication.

So, let's review it from that simplified point of view:

* The user types the `username` and `password` in the frontend, and hits `Enter`.
* The frontend (running in the user's browser) sends that `username` and `password` to a specific URL in our API (declared with `tokenUrl="token"`).

        Date after = new Date(System.currentTimeMillis());
        addSnapshotVersion(target.getVersioning(), "jar", before, "1", 1);
        SnapshotVersion sv2 =
                addSnapshotVersion(source.getVersioning(), "jar", after, "1.0-" + formatDate(after, true) + "-2", 2);
        SnapshotVersion sv3 =
                addSnapshotVersion(source.getVersioning(), "pom", after, "1.0-" + formatDate(after, true) + "-2", 2);

                                    after(VALIDATE),
                                    phase(SOURCES),
                                    phase(RESOURCES),
                                    phase(COMPILE, after(SOURCES), dependencies(SCOPE_COMPILE, READY)),
                                    phase(READY, after(COMPILE), after(RESOURCES)),
                                    phase(PACKAGE, after(READY), dependencies(SCOPE_RUNTIME, PACKAGE))),

    CountingRunnable after = new CountingRunnable();

    future.addListener(before, directExecutor());
    future.setFuture(delegate);
    future.addListener(inBetween, directExecutor());
    delegate.set(1);
    future.addListener(after, directExecutor());

    before.assertRun();
    inBetween.assertRun();
    after.assertRun();
  }

		t.Fatalf("Error happened when delete pet, got %v", err)
	}
	AssertAssociationCount(t, user2, "Pets", 1, "after delete non-existing data")

	if err := DB.Model(&user2).Association("Pets").Delete(&pet2); err != nil {
		t.Fatalf("Error happened when delete Pets, got %v", err)
	}
	AssertAssociationCount(t, user2, "Pets", 0, "after delete")

	// Prepare Data for Clear